CN110213216B - Method, device and storage medium for determining same account in different account sets - Google Patents

Method, device and storage medium for determining same account in different account sets Download PDF

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Publication number
CN110213216B
CN110213216B CN201810964176.7A CN201810964176A CN110213216B CN 110213216 B CN110213216 B CN 110213216B CN 201810964176 A CN201810964176 A CN 201810964176A CN 110213216 B CN110213216 B CN 110213216B
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account
target
server
accounts
encryption
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CN110213216A (en
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冯琛
李锐
何奋成
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Tencent Technology Beijing Co Ltd
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Tencent Technology Beijing Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/0478—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload applying multiple layers of encryption, e.g. nested tunnels or encrypting the content with a first key and then with at least a second key
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms

Abstract

The application discloses a method, a device and a storage medium for determining the same account number in different account number sets, and belongs to the technical field of Internet. The method comprises the following steps: acquiring a first account set, wherein the first account set comprises m first encryption accounts corresponding to m first target accounts one by one, and the first encryption accounts are obtained by sequentially encrypting the corresponding first target accounts through a first encryption algorithm and a second encryption algorithm; acquiring a second account set, wherein the second account set comprises n second encryption accounts corresponding to n second target accounts one by one, and the second encryption accounts are obtained by sequentially encrypting the corresponding second target accounts through a second encryption algorithm and a first encryption algorithm; and determining the same account number in the m first target account numbers and the n second target account numbers according to the intersection of the first account number set and the second account number set. According to the technical scheme, the data security of the server can be ensured in the process of determining the same account number.

Description

Method, device and storage medium for determining same account in different account sets
Technical Field
The present invention relates to the field of internet technologies, and in particular, to a method, an apparatus, and a storage medium for determining the same account in different account sets.
Background
In many cases, the server needs to determine the same account in two different account sets, e.g., the server of two different merchants is likely to need to determine the number of the same user in the users of the two different merchants based on the number of the same account in the respective account sets of the two different merchants.
In the related art, a server a having access rights of one account set a may encrypt an account in the account set a by using a certain encryption algorithm to obtain a first encrypted account set, the server a may send the first encrypted account set to a server B, the server B has access rights of another account set B, the server B may encrypt the account set B by using the same encryption algorithm to obtain a second encrypted account set, and the server B may obtain an intersection of the two encrypted account sets, where elements in the intersection of the two encrypted account sets are the same account in the account set a and the account set B.
However, since the encryption algorithms used by the server a and the server B are the same, the server B easily decrypts the account set a of the server B, which does not have the access right, according to the first encrypted account set sent by the server a, which affects the data security of the server.
Disclosure of Invention
The embodiment of the invention provides a method, a device and a storage medium for determining the same account in different account sets, which can ensure the data security of a server. The technical scheme is as follows:
in one aspect, a method for determining the same account in different account sets is provided, the method comprising:
acquiring a first account set, wherein the first account set comprises m first encryption accounts which are in one-to-one correspondence with m first target accounts, the first encryption accounts are obtained by sequentially encrypting the corresponding first target accounts through a first encryption algorithm and a second encryption algorithm, and m is a positive integer;
acquiring a second account set, wherein the second account set comprises n second encryption accounts which are in one-to-one correspondence with n second target accounts, the second encryption accounts are obtained by sequentially encrypting the corresponding second target accounts through a second encryption algorithm and the first encryption algorithm, and n is a positive integer;
determining the same account number in the m first target account numbers and the n second target account numbers according to the intersection of the first account number set and the second account number set;
the encrypted account number obtained by sequentially encrypting the same account number through the first encryption algorithm and the second encryption algorithm is the same as the encrypted account number obtained by sequentially encrypting the same account number through the second encryption algorithm and the first encryption algorithm.
In one aspect, a method for determining the same account in different account sets is provided, the method comprising:
acquiring a first account set, wherein the first account set comprises m first encryption accounts which are in one-to-one correspondence with m first target accounts, the first encryption accounts are obtained by sequentially encrypting corresponding first target accounts through a first encryption algorithm and a second encryption algorithm, a client corresponding to the first target accounts exposes target popularization information, the first encryption algorithm is an encryption algorithm used by a server storing the first target accounts, and m is a positive integer;
acquiring a second account set, wherein the second account set comprises n second encryption accounts which are in one-to-one correspondence with n second target accounts, the second encryption accounts are obtained by sequentially encrypting the corresponding second target accounts through a second encryption algorithm and the first encryption algorithm, a client corresponding to the second target accounts performs target operation on commodities promoted by the target popularization information, the second encryption algorithm is an encryption algorithm used by a server storing the second target accounts, and n is a positive integer;
Determining the same account number in the m first target account numbers and the n second target account numbers according to the intersection of the first account number set and the second account number set;
the encrypted account number obtained by sequentially encrypting the same account number through the first encryption algorithm and the second encryption algorithm is the same as the encrypted account number obtained by sequentially encrypting the same account number through the second encryption algorithm and the first encryption algorithm.
In one aspect, an apparatus for determining the same account in different account sets is provided, where the apparatus includes:
the first acquisition module is used for acquiring a first account set, wherein the first account set comprises m first encryption accounts corresponding to m first target accounts one by one, the first encryption accounts are obtained by sequentially encrypting the corresponding first target accounts through a first encryption algorithm and a second encryption algorithm, and m is a positive integer;
the second acquisition module is used for acquiring a second account set, the second account set comprises n second encryption accounts corresponding to n second target accounts one by one, the second encryption accounts are obtained by sequentially encrypting the corresponding second target accounts through the second encryption algorithm and the first encryption algorithm, and n is a positive integer;
The determining module is used for determining the same account number in the m first target account numbers and the n second target account numbers according to the intersection set of the first account number set and the second account number set;
the encrypted account number obtained by sequentially encrypting the same account number through the first encryption algorithm and the second encryption algorithm is the same as the encrypted account number obtained by sequentially encrypting the same account number through the second encryption algorithm and the first encryption algorithm.
In one aspect, an apparatus for determining the same account in different account sets is provided, where the apparatus includes:
the first acquisition module is used for acquiring a first account set, wherein the first account set comprises m first encryption accounts corresponding to m first target accounts one by one, the first encryption accounts are obtained by sequentially encrypting corresponding first target accounts through a first encryption algorithm and a second encryption algorithm, a client corresponding to the first target accounts exposes target popularization information, the first encryption algorithm is an encryption algorithm used by a server storing the first target accounts, and m is a positive integer;
the second acquisition module is used for acquiring a second account set, the second account set comprises n second encryption accounts corresponding to n second target accounts one by one, the second encryption accounts are obtained by sequentially encrypting the corresponding second target accounts through a second encryption algorithm and the first encryption algorithm, a client corresponding to the second target accounts performs target operation on commodities promoted by the target popularization information, the second encryption algorithm is an encryption algorithm used by a server storing the second target accounts, and n is a positive integer;
The determining module is used for determining the same account number in the m first target account numbers and the n second target account numbers according to the intersection set of the first account number set and the second account number set;
the encrypted account number obtained by sequentially encrypting the same account number through the first encryption algorithm and the second encryption algorithm is the same as the encrypted account number obtained by sequentially encrypting the same account number through the second encryption algorithm and the first encryption algorithm.
In one aspect, an apparatus for determining the same account in different account sets is provided, the apparatus comprising a processor and a memory, wherein at least one instruction is stored in the memory;
the instructions are loaded and executed by the processor to implement any of the methods for determining the same account in different account sets provided in the embodiments of the present application.
In one aspect, a computer-readable storage medium having at least one instruction stored therein is provided;
the instructions are loaded and executed by the processor to implement any of the methods for determining the same account in different account sets provided in the embodiments of the present application.
The beneficial effects that technical scheme that this application embodiment provided include at least:
The method comprises the steps that a first account set and a second account set are obtained, the same account number in m first target accounts and n second target accounts is determined according to the intersection of the first account set and the second account set, wherein the first account set comprises m first encryption accounts, the first encryption accounts are obtained by sequentially encrypting corresponding first target accounts through a first encryption algorithm and a second encryption algorithm, the second account set comprises n second encryption accounts, the second encryption accounts are obtained by sequentially encrypting corresponding second target accounts through the second encryption algorithm and the first encryption algorithm, the encryption accounts obtained by sequentially encrypting the same account number through the first encryption algorithm and the second encryption algorithm are identical to the encryption accounts obtained by sequentially encrypting the second encryption algorithm and the first encryption algorithm, and because the first encryption algorithm and the second encryption algorithm are encryption algorithms used by a server with the m first target accounts and a server with the n second target accounts, any server can not decrypt the data of the second account number according to the second account number without knowing the other server, and the second account number can not be decrypted by the second account number or the reverse access to the second account number.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of a method of determining the same account in different account sets.
Fig. 2 is a schematic diagram of an implementation environment involved in a method for determining the same account in different account sets according to an embodiment of the present application.
Fig. 3 is a flowchart of a method for determining the same account in different account sets according to an embodiment of the present application.
Fig. 4 is a flowchart of a method for determining the same account in different account sets according to an embodiment of the present application.
Fig. 5 is a schematic diagram of a method for determining the same account in different account sets according to an embodiment of the present application.
Fig. 6 is a schematic diagram of a method for determining the same account in different account sets according to an embodiment of the present application.
Fig. 7 is a flowchart of a method for determining the same account in different account sets according to an embodiment of the present application.
Fig. 8 is a block diagram of an apparatus for determining the same account in different account sets according to an embodiment of the present application.
Fig. 9 is a block diagram of an apparatus for determining the same account in different account sets according to an embodiment of the present application.
Fig. 10 is a block diagram of an apparatus for determining the same account in different account sets according to an embodiment of the present application.
Fig. 11 is a block diagram of an apparatus for determining the same account in different account sets according to an embodiment of the present application.
Fig. 12 is a block diagram of an apparatus for determining the same account in different account sets according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
In many cases, the server needs to determine the same account in two different account sets, e.g., the server of two different merchants is likely to need to determine the number of the same user in the users of the two different merchants based on the number of the same account in the respective account sets of the two different merchants. The method for determining the same account number comprises the steps of ensuring the data safety of each server, and preventing the account number of a user from leaking is an important link in the process of determining the same account number.
In the following, in the embodiment of the present application, only the number of the same users in the respective users is determined by using the servers of the popularization information exposer and the servers of the popularization information provider according to the same account in the respective account set as an example, and a mode of guaranteeing the data security of each server and preventing the account of the user from leaking in the related art is briefly described.
The promotion information may also be called advertisement, and is information for promoting commodity for the purpose of promotion, and in practical application, the promotion information may have various forms, for example, video form, picture form, text form, etc. The promotional information exposure can be referred to as an advertiser, which is a merchant with an independent network delivery channel, e.g., the promotional information exposure can be an operator of a video playback application, an operator of a social application, an operator of a music playback application, or an operator of a website, etc. The promotion information provider may be referred to as an advertiser, which is a merchant selling goods, and may provide promotion information for promoting a certain goods to the promotion information exposer to expose the promotion information to the user using a network delivery channel of the promotion information exposer.
In practical applications, there are various ways in which the popularization information exposer exposes the popularization information to the user, for example, the popularization information exposer can display the popularization information at a preset position of an interface of the application program, so that the popularization information can be exposed to the user in the process that the user opens the interface of the application program; for another example, the promotion information exposer can display promotion information at a preset position of the website, so that the promotion information can be exposed to the user in the process of logging in the website by the user; for another example, the promotional information exposer may add promotional information to the beginning of the network video, such that the promotional information may be exposed to the user during the user's playing of the network video.
In general, both the promotional information provider and the promotional information exposure provider have a need to determine the promotional information exposure effect.
In one manner, the promotional information exposure effect may be characterized by the number of users performing subsequent operations on the merchandise promoted by the promotional information after the promotional information has been exposed. That is, the exposure effect of the promotion information can be characterized by the number of the same users in the user of the promotion information exposer and the user of the promotion information provider, wherein the user of the promotion information exposer is the user exposing a certain promotion information, and the user of the promotion information provider is the user browsing, clicking, adding into shopping cart or purchasing the commodity promoted by the certain promotion information.
In another manner, the promotional information provider may provide a number of targeted exposure users to which the promotional information provider may expose promotional information, at which time the promotional information exposure effect may be characterized by the proportion of users exposed to the targeted exposure users. That is, the exposure effect of the promotional information can be characterized by the number of identical users in the targeted exposure users provided by the promotional information exposure provider and the user of the promotional information exposure provider, wherein the user of the promotional information exposure provider is the user who has exposed a certain promotional information.
To ensure pushingIn one possible method for determining the same account in different account sets, as shown in fig. 1, the server of the promotional information provider (hereinafter referred to as the promotional information provider) may perform steps 1 to 3, and in step 1, the promotional information provider may obtain the account of the user who performs browsing, clicking, adding to shopping cart or purchasing operation with respect to the commodity b, thereby obtaining the account set { a } n -a }; in step 2, the promotional information provider may utilize the encryption algorithm u (x) to reconcile the account set { a } n Each element in the { is encrypted to obtain an encrypted account number set { u (a) n ) -a }; in step 3, the promotional information provider may aggregate the encrypted account { u (a) n ) The server of the promotion information exposer (hereinafter referred to as promotion information exposer). The promotion information exposer may perform steps 4 to 6, and in step 4, the promotion information exposer may obtain the account number of the user exposed with the promotion information a, thereby obtaining an account number set { b } n -wherein promotional information a is used to promote the commodity b; in step 5, the promotional information exposer may use the same encryption algorithm u (x) to account number set { b } n Each element in the { is encrypted to obtain an encrypted account number set { u (b) n ) -a }; in step 6, the promotional information exposer may calculate the encrypted account set { u (a) n ) Sum of the encrypted account number { u (b) n ) An intersection of the elements in the intersection is a set { a } n Sum set { b } n The number of elements in the intersection, that is, the number of users who perform subsequent operations on the commodity b after the popularization information a is exposed, the popularization information exposer may use the number of elements in the intersection to represent the exposure effect of the popularization information a, and the popularization information exposer may also send the number of elements in the intersection to the popularization information provider, so that the popularization information provider uses the number of elements in the intersection to represent the exposure effect of the popularization information a.
However, in the above method of determining the same account in different account sets, due to the promotion information provider and the promotion information exposerThe encryption algorithm u (x) used is the same, so that the promotional information exposer can easily rely on the encrypted account number set { u (a) n ) Reverse decrypting the account set { a } n A, wherein the promotion information exposer does not have the { a } n Access rights of }. For example, the promotion information exposer may maintain a corresponding relationship table between account numbers and encrypted account numbers, and receive the encrypted account number set { u (a n ) After the step, the promotion information exposer can query the corresponding relation table by using the elements in the encryption account number set, so as to obtain the real account number corresponding to each element in the encryption account number set. Therefore, the method for determining the same account in different account sets cannot completely prevent the leakage of the user account, and cannot completely ensure the data security of the server.
In addition, in the method for determining the same account in different account sets, the promotion information provider needs to be informed of the promotion information exposure effect by the promotion information exposure provider, so that the situation that the promotion information exposure provider lies on the promotion information exposure effect is likely to occur in practical application, and the awareness of the promotion information provider is influenced. In other words, the method for determining the same account in different account sets cannot ensure that all servers have the same right of knowledge.
The embodiment of the application provides a method for determining the same account in different account sets, which not only can ensure the data security of the servers and prevent the account of a user from being leaked, but also can ensure that different servers have the same right of knowledge.
In the method for determining the same account in different account sets provided by the embodiment of the invention, two servers which need to determine the same account number can acquire a first account set and a second account set, and the same account in m first target accounts and n second target accounts is determined according to the intersection of the first account set and the second account set, wherein the first account set comprises m first encryption accounts, the first encryption accounts are obtained by sequentially encrypting the corresponding first target accounts through a first encryption algorithm and a second encryption algorithm, the second account set comprises n second encryption accounts, the second encryption accounts are obtained by sequentially encrypting the corresponding second target accounts through a second encryption algorithm and the first encryption algorithm, the encryption accounts obtained by sequentially encrypting the same account through the first encryption algorithm and the second encryption algorithm are the same as the encryption obtained by sequentially encrypting the same account through the second encryption algorithm and the first encryption algorithm, and the second encryption algorithm are respectively obtained by the m first target accounts and the corresponding second target accounts through the first encryption algorithm, the n second encryption accounts can not be used by the corresponding second target accounts, and the second account can not be accessed by the second account set according to the second account, and the user access permission of the second account set can not be ensured.
In addition, in the method for determining the same account in different account sets provided by the embodiment of the present application, two servers that need to determine the same account may both acquire the first account set and the second account set, in other words, two servers that need to determine the same account number may both directly acquire the intersection of the first account set and the second account set, so as to determine the same account in different account sets according to the intersection.
The following will describe an implementation environment related to a method for determining the same account in different account sets provided in the embodiment of the present application.
Fig. 2 is a schematic diagram of an implementation environment related to a method for determining the same account in different account sets according to an embodiment of the present application, where, as shown in fig. 2, the implementation environment may include: a first server 201 and a second server 202.
The first server 201 has access to the account set A1. Alternatively, the first server 201 may be a server used by a first merchant, where the first server 201 may maintain a first account database, and the first account database stores accounts of users of the first merchant, and the accounts of the users of the first merchant may form the account set A1. Optionally, the first account database may store accounts corresponding to clients that expose different promotion information, for example, the first account database may store accounts corresponding to clients that expose promotion information a, promotion information b, and promotion information c, respectively.
The second server 202 has access to the account set B1. Alternatively, the second server 202 may be a server used by a second merchant, and the second server 202 may maintain a second account database, where accounts of users of the second merchant are stored, and the accounts of users of the second merchant may form the account set B1. Optionally, the second account database may store accounts corresponding to clients performing target operations on different commodities, for example, the second account database may store accounts corresponding to clients performing purchase operations on the commodity a, the commodity B, and the commodity C, or the second account database may store target exposure users aiming at different popularization information, that is, accounts corresponding to clients needing to display different popularization information may be stored in the second account database.
In addition, the first server 201 may further store a first encryption algorithm, and the first server 201 may encrypt the account using the first encryption algorithm. The second server 202 may also store a second encryption algorithm, which the second server 202 may use to encrypt the account number.
The second server 202 and the first server 201 may exchange a first account set a and a second account set B with each other, where the first account set a includes accounts in the account set A1 encrypted by the first encryption algorithm and the second encryption algorithm in sequence, and the second account set B includes accounts in the account set B1 encrypted by the second encryption algorithm and the first encryption algorithm in sequence. The second server 202 and the first server 201 may determine the same user account in the account set A1 and the account set B1 based on the first account set a and the second account set B.
It should be noted that, the second server 202 and the first server 201 may be one server, or may be a server cluster formed by a plurality of servers.
Referring to fig. 3, a flowchart of a method for determining the same account in different account sets according to an embodiment of the present application is shown, where the method for determining the same account in different account sets may be applied to the first server 201 or the second server 202 in fig. 2. As shown in fig. 3, the method for determining the same account in different account sets may include the following steps:
step 301, a server acquires a first account set.
The server may be a first server, that is, the server may be a server used by the first merchant, or the server may be a second server, that is, the server may be a server used by the second merchant.
The first account set comprises m first encryption accounts corresponding to m first target accounts one by one, wherein the first encryption accounts are obtained by sequentially encrypting the corresponding first target accounts through a first encryption algorithm and a second encryption algorithm, and m is a positive integer.
Optionally, the first target account may be an account of a user of the first merchant, the first encryption algorithm may be an encryption algorithm used by a server of the first merchant, the second encryption algorithm may be an encryption algorithm used by a server of the second merchant, and an encrypted account obtained by sequentially encrypting the same account through the first encryption algorithm and the second encryption algorithm is the same as an encrypted account obtained by sequentially encrypting the same account through the second encryption algorithm and the first encryption algorithm.
Step 302, the server acquires a second account set.
The second account set comprises n second encryption accounts corresponding to the n second target accounts one by one, wherein the second encryption accounts are obtained by sequentially encrypting the corresponding second target accounts through a second encryption algorithm and a first encryption algorithm, and n is a positive integer. Alternatively, the second target account number may be an account number of a user of the second merchant.
The first target account is an account for displaying target popularization information by a corresponding client, and the second target account is an account for performing target operation on commodities promoted by the target popularization information by the corresponding client; or,
the first target account is an account of which the corresponding client performs target operation on the commodity promoted by the target promotion information, and the second target account is an account of which the corresponding client performs display on the target promotion information, or;
the first target account is an account of which the corresponding client side displays the target popularization information, and the second target account is an account of which the client side needs to display the target popularization information; or,
the first target account is an account corresponding to a client which needs to display the target popularization information, and the second target account is an account corresponding to the client which displays the target popularization information.
Step 303, the server determines the same account number in the m first target account numbers and the n second target account numbers according to the intersection set of the first account number set and the second account number set.
In summary, according to the method for determining the same account in different account sets provided in the embodiment of the present application, the first account set and the second account set are obtained by obtaining the first account set and the second account set, and determining the same account in the m first target accounts and the n second target accounts according to the intersection of the first account set and the second account set, where the first account set includes the m first encrypted accounts, the first encrypted accounts are obtained by sequentially encrypting the corresponding first target accounts through the first encryption algorithm and the second encryption algorithm, the second account set includes the n second encrypted accounts, the second encrypted accounts are obtained by sequentially encrypting the corresponding second target accounts through the second encryption algorithm and the first encryption algorithm, and the encrypted account obtained by sequentially encrypting the same account through the first encryption algorithm and the second encryption algorithm is the same as the encrypted account obtained by sequentially encrypting the second encryption algorithm.
Referring to fig. 4, a flowchart of a method for determining the same account in different account sets according to an embodiment of the present application is shown, where the method for determining the same account in different account sets may be applied to the implementation environment shown in fig. 2. As shown in fig. 4, the method for determining the same account in different account sets may include the following steps:
step 401, the second server obtains n second target account numbers.
As described above, a second account database may be maintained in the second server, and in step 401, the second server may obtain n second target accounts from the second account database, where the second server has access rights of the n second target accounts.
Optionally, the second merchant may be a promotion information provider, the second server may be a server used by the promotion information provider, and the second account database may store accounts corresponding to clients performing target operations on different commodities. In this case, in order to determine the exposure effect of the target popularization information, the second server may acquire a commodity promoted by the target popularization information (hereinafter referred to as a target commodity), and query the second account database according to the target commodity, so as to obtain accounts respectively corresponding to n clients performing the target operation on the target commodity, that is, obtain n second target accounts.
For example, the second account database may store accounts corresponding to clients that perform purchase operations on the commodity a, the commodity B, and the commodity C, and in order to determine the exposure effect of the target popularization information, the second server may obtain the commodity promoted by the target popularization information, where the commodity may be the commodity B, and then the second server may query the second account database according to the commodity B, and after query, the clients that perform purchase operations on the commodity B have 3 accounts, where the corresponding accounts are u, v, and w, respectively, and then the accounts u, v, and w are the second target accounts.
In step 402, a first server obtains k first target account numbers, where k is a positive integer.
As described above, a first account database may be maintained in the first server, and in step 402, the first server may obtain k first target accounts from the first account database, where the first server has access rights of the k first target accounts.
Optionally, the first merchant may be a promotional information exposer, the first server may be a server used by the promotional information exposer, and the first account database may store accounts corresponding to clients that expose different promotional information. In this case, in order to determine the exposure effect of the target popularization information, the first server may query the first account database according to the target popularization information, so as to obtain accounts corresponding to the k clients exposing the target popularization information from the first account database, that is, obtain k first target accounts.
For example, the first account database may store accounts corresponding to clients that expose the popularization information a, the popularization information b, and the popularization information c, where the popularization information b is target popularization information, and in order to determine an exposure effect of the target popularization information, the first server may query the first account database according to the target popularization information (that is, the popularization information b), and after query, there are 6 clients that expose the popularization information b, and the accounts corresponding to the 6 clients are w, o, p, q, e and f, respectively, and then the accounts w, o, p, q, e and f are first target accounts.
In many cases, the first merchant and the second merchant need to determine the number of identical users in the respective users, where the number of identical users may be characterized by the number of identical accounts in the first target account number of k and the n second target account numbers.
For example, in the case that the first merchant is a promotional information exposer and the second merchant is a promotional information provider, in order to determine the exposure effect of the target promotional information, the promotional information exposer and the promotional information provider need to determine the number of users who perform subsequent operations on the target commodity after exposing the target promotional information, that is, the promotional information exposer and the promotional information provider need to determine the number of the same users in the users of the promotional information exposer and the users of the promotional information provider, wherein the number of the same users can be characterized by the number of the same accounts in the k first target accounts and the n second target accounts.
It should be noted that, if the number of the same accounts in the k first target accounts and the n second target accounts is used to characterize the number of the same users in the first merchant and the second merchant, it is required to ensure that the accounts corresponding to the same user are the same in the first server and the second server. To achieve this objective, in the embodiment of the present application, the account number of the user may be a device identifier of a terminal device owned by the user, where the device identifier is used to uniquely identify one terminal device, for example, the device identifier may be an IMEI (International Mobile Equipment Identity, international mobile equipment identifier) or a physical address, etc., that is, the second target account number and the first target account number described above may be IMEI, or the second target account number and the first target account number described above may be physical addresses, etc.
In the embodiment of the present application, in order to prevent the leakage of the first target account number and the second target account number, and ensure the data security of the first merchant and the second merchant, in the process of obtaining the number of the same accounts in the k first target account numbers and the n second target account numbers, encryption needs to be performed on the k first target account numbers and the n second target account numbers, so that the number of the same accounts in the k first target account numbers and the n second target account numbers is obtained by using the encrypted account numbers. The technical process of encrypting the account numbers will be described below, and the embodiments of the present application will not be described in detail here.
In some possible cases, the number of users of one of the first merchant and the second merchant is substantially greater than the number of users of the other merchant, e.g., the number of users exposed to the targeted promotional information (i.e., the number of users of the promotional information exposure merchant) is substantially greater than the number of users targeted for the targeted merchandise (i.e., the number of users of the promotional information provider).
In the following, the embodiment of the present application is described by taking an example in which the number of users of the first merchant is far greater than that of the second merchant, and the situation in which the number of users of the second merchant is far greater than that of the first merchant is the same as the situation, and the embodiment of the present application is not repeated.
Under the condition that the number of users of the first merchant is far greater than that of users of the second merchant (namely, the value of k is far greater than that of n), the k first target accounts are encrypted one by one, so that a large operation burden is brought to the first server and the second server, and as most of the first target accounts are not located in the n second target accounts, namely, most of the first target accounts are different from the n second target accounts, the k first target accounts are encrypted one by one, so that the waste of calculation resources is also caused.
In order to reduce the operation burden and avoid the waste of computing resources, the first server may filter the k first target accounts, and filter, through filtering, k-m first target accounts which cannot be located in the n second target accounts in the k first target accounts, so as to finally filter m first target accounts which may be located in the n second target accounts from the k first target accounts. In other words, the probability that each of the m first target account numbers obtained by filtering is located in the n second target account numbers is greater than 0, where m is a positive integer less than k.
Since the m first target accounts obtained by filtering may be located in the n second target accounts, and the other k-m first target accounts filtered may not be located in the n second target accounts, the number of the same accounts in the k first target accounts and the n second target accounts is equal to the number of the same accounts in the m first target accounts and the n second target accounts. Meanwhile, since the value of m is smaller than the value of k, compared with the encryption of k first target accounts, the encryption of m first target accounts can reduce the operation burden and avoid the waste of calculation resources.
In addition, the m first target accounts obtained through filtering are only first target accounts which may be located in the n second target accounts, in other words, the m first target accounts have first target accounts which are not located in the n second target accounts and also have first target accounts located in the n second target accounts, so that the m first target accounts cannot cause data leakage, and therefore data security of a first merchant cannot be affected.
The following steps 403 and 404 are technical processes of filtering the k first target account numbers. In actual implementation, the first server may not filter the k first target account numbers. In this case, the following steps 403 and 404 need not be performed, where the value of k is equal to the value of m, and the k first target account numbers are the same as the m first target account numbers.
And 403, the second server builds an account filter according to the n second target accounts and sends the account filter to the first server.
The account filter constructed by the second server is used for filtering the k first target accounts to obtain the m first target accounts.
In one embodiment of the present application, the account Filter may be a Bloom Filter (english: bloom Filter) that is composed of a binary vector and a series of random mapping functions (english: hash functions) that may be used to detect whether an element is present in a collection. In step 403, the second server may construct a bloom filter according to the n second target accounts, where the bloom filter constructed may be used to detect a first target account of the k first target accounts, so as to determine whether the first target account exists in a set formed by the n second target accounts.
The bloom filter has false positive misjudgment, wherein the false positive misjudgment means that if the bloom filter detects that a certain element is not in a certain set, the element is not necessarily in the set, but if the bloom filter detects that the certain element is in a certain set, the element is possibly not in the set.
For example, if it is desired to determine whether an element 1, 3, 5, 7, … …, 2n-1, … … 99 is present in the set a {1,2,3}, a bloom filter may be constructed based on the set a, and each element of 1, 3, 5, 7, … …, 2n-1, … … 99 may be detected by the bloom filter, and the detected elements 1, 3, 5, 21, 35, 89, 91, and 99 present in the set a may be obtained, where elements 1 and 3 are elements that are actually present in the set a, and elements 5, 21, 35, 89, 91, and 99 are elements that are erroneously determined to be present in the set a due to the false positive erroneous determination characteristic of the bloom filter.
By utilizing the false positive misjudgment characteristic of the bloom filter, k-m first target accounts which cannot be located in the n second target accounts can be filtered out from the k first target accounts, so that m first target accounts which can be located in the n second target accounts are finally obtained.
The false positive rate of the bloom filter may be set manually during the construction process, where the false positive rate of the bloom filter refers to the probability of misjudging an element that is not in the set as an element that is in the set. The m size can be changed by adjusting the false positive rate of the bloom filter, and in the embodiment of the present application, the false positive rate of the bloom filter can be determined by negotiation of the first merchant and the second merchant, which is not specifically limited in the embodiment of the present application.
After determining the false positive rate, the second server may construct the bloom filter according to the value of k, the false positive rate, and the n second target account numbers, where the value of k may be sent by the first server to the second server.
Step 404, after receiving the account filter, the first server filters m first target accounts from k first target accounts by using the account filter.
Optionally, the first server may filter each first target account of the k first target accounts by using the account filter, so as to obtain the m first target accounts from the k first target accounts by filtering.
For example, the first server may receive a bloom filter constructed by the second server using the second target accounts u, v, and w, and filter the 6 first target accounts w, o, p, q, e and f using the bloom filter, and finally filter to obtain 3 first target accounts, where the 3 first target accounts are w, o, and p, respectively, the first target account w is actually present in the 3 second target accounts u, v, and w, and the first target accounts o and p are first target accounts that are misjudged to be present in the 3 second target accounts u, v, and w due to the false positive misjudgment characteristic of the bloom filter.
Step 405, the first server encrypts each first target account in the m first target accounts by using a first encryption algorithm, so as to obtain and send a first initial account set to the second server.
The first initial account set comprises m first initial encryption accounts, the m first initial encryption accounts are in one-to-one correspondence with m first target accounts, and each first initial encryption account is obtained by encrypting the corresponding first target account through a first encryption algorithm.
For example, the first server may encrypt the 3 first target accounts obtained by filtering in the foregoing example by using the first encryption algorithm f (x), so as to obtain 3 first initial encrypted accounts, where the 3 first initial encrypted accounts are f (w), f (o), and f (p), respectively, and the 3 first initial encrypted accounts may form a first initial account set, and the first server may send the first initial account set to the second server.
It should be noted that, in order to prevent the second server from speculatively comparing the real account numbers of the user according to the arrangement sequence of the first initial encrypted account numbers in the first initial account number set. In this embodiment of the present application, the first server may perform out-of-order processing on a first initial encrypted account in the first initial account set, and send the first initial account set that is subjected to the out-of-order processing to the second server.
In step 406, the second server encrypts each second target account in the n second target accounts by using a second encryption algorithm, so as to obtain and send a second initial account set to the first server.
The second initial account set comprises n second initial encryption accounts, the n second initial encryption accounts are in one-to-one correspondence with n second target accounts, and each second initial encryption account is obtained by encrypting the corresponding second target account through a second encryption algorithm.
For example, the second server may encrypt the 3 second target accounts u, v, and w obtained from the second account database in the above example by using the second encryption algorithm g (x), so as to obtain 3 second initial encrypted accounts, where the 3 second initial encrypted accounts are g (u), g (v), and g (w), respectively, and the 3 second initial encrypted accounts may form a second initial account set, and the second server may send the second initial account set to the first server.
Similarly to the above description, the second server may perform out-of-order processing on the second initial encrypted account number in the second initial account number set, and send the out-of-order processed second initial account number set to the first server.
It should be noted that, in the embodiment of the present application, an encrypted account obtained by sequentially encrypting the same account through a first encryption algorithm and a second encryption algorithm is the same as an encrypted account obtained by sequentially encrypting the same account through the second encryption algorithm and the first encryption algorithm. For example, for the account a1, an encrypted account obtained by encrypting the account a1 sequentially by the first encryption algorithm f (x) and the second encryption algorithm g (x) is g (f (a 1)), and an encrypted account obtained by encrypting the account a1 sequentially by the second encryption algorithm g (x) and the first encryption algorithm f (x) is f (g (a 1)), in the embodiment of the present application, g (f (a 1))=f (g (a 1)).
Alternatively, the first encryption algorithm f (x) may be:
f(x)＝x e1 mod p；
the second encryption algorithm g (x) may be:
g(x)＝x e2 mod p。
wherein the value of p may be determined by a first merchant and a second merchant negotiation. In one embodiment of the present application, to ensure data security, each time the first merchant and the second merchant determine the number of identical users in their respective users, the first merchant and the second merchant may negotiate to determine a value of p. Of course, the value of p may also be a fixed value that the first merchant and the second merchant negotiate to determine, and the fixed value of p is used to encrypt the account each time the first merchant and the second merchant determine the number of the same users in their respective users.
Optionally, p may be a real number, and further, p and (p-1)/2 may be prime numbers, so that it may be ensured that encrypted account numbers obtained by encrypting different account numbers through the first encryption algorithm and the second encryption algorithm are different, that is, for different account numbers s and r, the value of f(s) and the value of g (r) are necessarily different, and the value of f (r) and the value of g(s) are necessarily different, so that accuracy of intersection calculation may be ensured.
mod is the modulo operator, e1 is a secret real number chosen by the first merchant that is less than p, and e2 is a secret real number chosen by the second merchant that is also less than p.
The mathematical derivation shows that:
f(g(x))
＝(x e2 mod p) e1 mod p
＝x e1e2 mod p
＝(x e1 mod p) e2 mod p
＝g(f(x))。
that is, the encrypted account number g (x) obtained by encrypting the same account number sequentially by the first encryption algorithm f (x) and the second encryption algorithm g (x) is the same as the encrypted account number f (x) obtained by encrypting the same account number sequentially by the second encryption algorithm g (x) and the first encryption algorithm f (x).
Step 407, after receiving the first initial account set, the second server performs secondary encryption on each first initial encrypted account in the first initial account set by using a second encryption algorithm, so as to obtain and send the first account set to the first server.
The first account set comprises m first encryption accounts, the m first encryption accounts are in one-to-one correspondence with m first initial encryption accounts, each first encryption account is obtained by performing secondary encryption on the corresponding first initial encryption account through a second encryption algorithm, or in other words, the m first encryption accounts are in one-to-one correspondence with m first target accounts, and each first encryption account is obtained by sequentially performing encryption on the corresponding first target account through a first encryption algorithm and a second encryption algorithm.
For example, after receiving the first initial account set including f (w), f (o), and f (p), the second server may perform secondary encryption on f (w), f (o), and f (p) using a second encryption algorithm, so as to obtain 3 first encrypted accounts, where the 3 first encrypted accounts are g (f (w)), g (f (o), and g (f (p)), respectively, and the 3 first encrypted accounts may form a first account set, and the second server may send the first account set to the first server.
Similarly to the above description, the second server may perform disorder processing on the first encrypted account in the first account set, and send the first account set that is subjected to disorder processing to the first server.
Because the first initial encryption account in the first initial account set is obtained by encrypting the first initial account set by the first server through the first encryption algorithm, the first encryption algorithm is an encryption algorithm used by the first merchant, and the second merchant cannot acquire the first initial account set, the second server cannot reversely decrypt the real account of the user after receiving the first initial account set, that is, cannot reversely decrypt the first target account, so that the data security of the first merchant can be ensured.
Step 408, after receiving the second initial account set, the first server encrypts each second initial encrypted account in the second initial account set by using the first encryption algorithm to obtain and send the second account set to the second server.
The second account set comprises n second encryption accounts, the n second encryption accounts are in one-to-one correspondence with n second initial encryption accounts, each second encryption account is obtained by performing secondary encryption on the corresponding second initial encryption account through a first encryption algorithm, or in other words, the n second encryption accounts are in one-to-one correspondence with n second target accounts, and each second encryption account is obtained by sequentially performing encryption on the corresponding second target account through a second encryption algorithm and a first encryption algorithm.
For example, after receiving the second initial account set including g (u), g (v), and g (w), the first server may respectively perform secondary encryption on g (u), g (v), and g (w) by using a first encryption algorithm, so as to obtain 3 second encrypted accounts, where the 3 second encrypted accounts are f (g (u)), f (g (v), and f (g (w)), respectively, and the 3 second encrypted accounts may form a second account set, and the first server may send the second account set to the second server.
Similarly to the above description, the first server may perform disorder processing on the second encrypted account in the second account set, and send the second account set that is subjected to disorder processing to the second server.
The second initial account number in the second initial account number set is obtained by encrypting the second initial account number set by the second server through a second encryption algorithm, the second encryption algorithm is an encryption algorithm used by a second merchant, and the first merchant cannot acquire the second initial account number set, so that the first server cannot reversely decrypt out the real account number of the user after receiving the second initial account number set, namely, cannot reversely decrypt out the second target account number, and the data security of the second merchant can be ensured.
Step 409, the second server determines the same account numbers in the m first target account numbers and the n second target account numbers according to the intersection set of the first account number set and the second account number set.
After the steps, the second server and the first server acquire the first account number set and the second account number set.
Since f (g (a)) and g (f (a)) are equal for the same account a, the number of the same accounts in the m first target accounts and the n second target accounts is equal to the number of elements included in the intersection of the first account set and the second account set. Thus, the second server may determine the number of the same user in the first merchant and the second merchant based on the number of elements in the intersection of the first set of accounts and the second set of accounts.
As exemplified above, the first account set includes 3 first encrypted accounts, g (f (w)), g (f (o)) and g (f (p)), respectively, the second account set includes 3 second encrypted accounts, f (g (u)), f (g (v)) and f (g (w)), respectively, the intersection of the first account set and the second account set is { b }, where b=f (g (w))=g (f (w)), the number of elements in the intersection of the first account set and the second account set is 1, and the number of elements in the intersection of the first account set and the second account set is exactly the number of the first target accounts w, o and p and the second target accounts u, v and w.
In step 410, the first server determines the same account number of the m first target account numbers and the n second target account numbers according to the intersection set of the first account number set and the second account number set.
The technical process of step 410 is the same as the technical process of step 409, and the embodiments of the present application are not repeated here.
In order to facilitate the reader to understand the technical solution provided by the embodiments of the present application, the following embodiments of the present application will briefly describe the technical principles involved in the embodiments of the present application with reference to the schematic diagram shown in fig. 5:
as shown in FIG. 5, the intersection of the set { a, b, c, d, e, f } and the set { e, f, g, h } is set { e, f }. Each element in the set { a, b, c, d, e, f } is encrypted by the first encryption algorithm f (x) and the second encryption algorithm g (x) to obtain a set { g (f (a)), g (f (b)), g (f (c)), g (f (d)), g (f (e)), g (f (f)) } and each element in the set { e, f, g, h } is encrypted by the second encryption algorithm g (x) and the first encryption algorithm f (x) to obtain a set { f (g (e)), f (g (f)), f (g (g)), f (g (h)). Since f (g (bb))=g (f (bb), for the same element bb, the intersection of the set { g (f (a)), g (f (b)), g (f (c)), g (f (d)), g (f (e)), g (f (f)) } and the set { f (g (e)), f (g (g)), f (g (h)) is { f (g (e)), f (g (f)) } which is the same as the number of elements in the intersection { e, f }.
In order to make the reader easily understand the technical solution provided by the embodiments of the present application, in the following, the embodiments of the present application will use only the first merchant as a popularization information exposure merchant, and the second merchant uses the popularization information provider as an example to briefly describe the technical solution provided by the embodiments of the present application:
as shown in fig. 6, the promotion information exposure server may obtain k first target account numbers and send the k values to a promotion information providing server, where the promotion information exposure server is a server used by a promotion information exposer.
The promotion information providing server can acquire n second target account numbers b, and construct bloom filters according to the value of k, the misjudgment rate determined by negotiating with the promotion information exposure server and the n second target account numbers b, and the promotion information providing server sends the constructed bloom filters to the promotion information exposure server, wherein the promotion information providing server is a server used by a promotion information provider.
And the popularization information exposure server filters the k first target account numbers by using the bloom filter to obtain m first target account numbers a.
The promotion information exposure server and the promotion information providing server agree on a value of prime number p, and respectively construct a first encryption algorithm and a second encryption algorithm by using the value of p, wherein the first encryption algorithm is f (x) =x e1 mod p, the second encryption algorithm isg(x)＝x e2 mod p。
And the popularization information exposure server respectively encrypts the m first target account numbers a by using a first encryption algorithm to obtain a first initial account number set { f (a) }.
The promotion information providing server encrypts the n second target account numbers b by using a second encryption algorithm to obtain a second initial account number set { g (b) }.
The promotional information exposure server and the promotional information providing server exchange a first set of primary account numbers { f (a) } and a second set of primary account numbers { g (b) }.
The promotion information exposure server uses a first encryption algorithm to carry out secondary encryption on each element in the second initial account number set { g (b) }, so as to obtain a second account number set { f (g (b))}.
The promotion information providing server uses a second encryption algorithm to perform secondary encryption on each element in the first initial account set { f (a) }, so as to obtain a first account set { g (f (a))}.
The promotion information exposure server and the promotion information providing server exchange a second account set { f (g (b)) } and a first account set { g (f (a)) }.
The popularization information exposure server and the popularization information providing server acquire intersections of the first account set and the second account set so as to represent exposure effects of the target popularization information by means of the number of elements included in the intersections of the first account set and the second account set.
In summary, according to the method for determining the same account in different account sets provided in the embodiment of the present application, the first account set and the second account set are obtained by obtaining the first account set and the second account set, and determining the same account in the m first target accounts and the n second target accounts according to the intersection of the first account set and the second account set, where the first account set includes the m first encrypted accounts, the first encrypted accounts are obtained by sequentially encrypting the corresponding first target accounts through the first encryption algorithm and the second encryption algorithm, the second account set includes the n second encrypted accounts, the second encrypted accounts are obtained by sequentially encrypting the corresponding second target accounts through the second encryption algorithm and the first encryption algorithm, and the encrypted account obtained by sequentially encrypting the same account through the first encryption algorithm and the second encryption algorithm is the same as the encrypted account obtained by sequentially encrypting the second encryption algorithm.
Referring to fig. 7, a flowchart of a method for determining the same account in different account sets according to an embodiment of the present application is shown, where the method for determining the same account in different account sets may be applied to the implementation environment shown in fig. 2. As shown in fig. 7, the method for determining the same account in different account sets may include the following steps:
step 701, a server acquires a first account set.
The server may be a first server, i.e., the server may be the server used by the promotional information exposure provider, or the server may be a second server, i.e., the server may be the server used by the promotional information provider.
The first account set comprises m first encryption accounts, wherein m is a positive integer. The first encryption account is obtained by sequentially encrypting the corresponding first target account through a first encryption algorithm and a second encryption algorithm. The first target account is an account of a user of the popularization information exposer, and the client corresponding to the first target account exposes the target popularization information.
The first encryption algorithm is an encryption algorithm used by a popularization information exposer, the second encryption algorithm is an encryption algorithm used by a popularization information provider, and an encryption account obtained by sequentially encrypting the same account through the first encryption algorithm and the second encryption algorithm is the same as an encryption account obtained by sequentially encrypting the same account through the second encryption algorithm and the first encryption algorithm.
Step 702, the server obtains a second account set.
The second account set comprises n second encryption accounts, wherein n is a positive integer. The second encryption account is obtained by sequentially encrypting the corresponding second target account through a second encryption algorithm and a first encryption algorithm. The second target account is an account of a user of the promotion information provider, and a client corresponding to the second target account performs target operation on commodities promoted by the target promotion information.
Step 703, the server determines the same account number in the m first target account numbers and the n second target account numbers according to the intersection set of the first account number set and the second account number set.
In summary, according to the method for determining the same account in different account sets provided by the embodiment of the present application, the first account set and the second account set are obtained, and the same account in the m first target accounts and the n second target accounts is determined according to the intersection of the first account set and the second account set, where the first account set includes m first encrypted accounts, the first encrypted accounts are obtained by sequentially encrypting the corresponding first target accounts through a first encryption algorithm and a second encryption algorithm, the second account set includes n second encrypted accounts, the second encrypted accounts are obtained by sequentially encrypting the corresponding second target accounts through the second encryption algorithm and the first encryption algorithm, the client corresponding to the first target accounts exposes the target popularization information, the client corresponding to the second target accounts performs target operations on goods promoted by the target popularization information, the encrypted first account sequentially passes through the first encryption algorithm and the second encryption algorithm, and the encrypted second account sequentially passes through the second encryption algorithm are the same, the second account is obtained by sequentially encrypting the corresponding second target accounts sequentially passes through the second encryption algorithm and the first encryption algorithm, the second account is obtained by sequentially encrypting the second account, the corresponding second target accounts corresponds to the second target accounts, the first target accounts corresponds to the target popularization information, the target popularization information is exposed by the first target popularization information, the second target popularization information is not the second popularization information, the second merchant information is exposed to the second popularization information, and the second merchant information is not able to be exposed to the provider information, and the second provider information is able to be decrypted by the second provider information, and the information is able to be ensured to be exposed by the user information.
Referring to fig. 8, a block diagram of an apparatus 800 for determining the same account in different account sets according to an embodiment of the present application is shown, where the apparatus 800 may be configured in the first server 201 or the second server 202 in fig. 2. As shown in fig. 8, the apparatus 800 may include a first acquisition module 801, a second acquisition module 802, and a determination module 803.
The first obtaining module 801 is configured to obtain a first account set, where the first account set includes m first encrypted accounts corresponding to m first target accounts one-to-one, where the first encrypted accounts are obtained by sequentially encrypting the corresponding first target accounts through a first encryption algorithm and a second encryption algorithm, and m is a positive integer.
The second obtaining module 802 is configured to obtain a second account set, where the second account set includes n second encrypted accounts corresponding to n second target accounts one-to-one, where the second encrypted accounts are obtained by sequentially encrypting the corresponding second target accounts through the second encryption algorithm and the first encryption algorithm, and n is a positive integer.
The determining module 803 is configured to determine, according to an intersection of the first account set and the second account set, an identical account of the m first target accounts and the n second target accounts, where an encrypted account obtained by encrypting the identical account sequentially through the first encryption algorithm and the second encryption algorithm is identical to an encrypted account obtained by sequentially encrypting the identical account sequentially through the second encryption algorithm and the first encryption algorithm.
In one embodiment of the present application, the first encryption algorithm f (x) includes:
f(x)＝x e1 mod p；
the second encryption algorithm g (x) includes:
g(x)＝x e2 mod p；
where mod is the modulo operator, p is a real number, and e1 and e2 are real numbers less than p.
In one embodiment of the present application, the apparatus 800 may be configured in the first server 201 in fig. 2, where the first obtaining module 801 is specifically configured to: a first initial account number set is sent to a second server, the first initial account number set comprises m first initial encryption account numbers, and the first initial encryption account numbers are obtained by encrypting corresponding first target account numbers by the first server through the first encryption algorithm; and receiving the first account number set sent by the second server, wherein the first encrypted account number in the first account number set is obtained by encrypting a corresponding first initial encrypted account number by the second server by using the second encryption algorithm.
The second obtaining module 802 is specifically configured to: receiving a second initial account number set sent by the second server, wherein the second initial account number set comprises n second initial encryption account numbers, and the second initial encryption account numbers are obtained by encrypting corresponding second target account numbers by the second server by using a second encryption algorithm; and encrypting the second initial encryption account in the second initial account set by using the first encryption algorithm to obtain the second account set.
Referring to fig. 9, another apparatus 900 for determining the same account in different account sets is provided in the embodiments of the present application, as shown in fig. 9, the apparatus 900 may be configured in the first server 201 in fig. 2, and the apparatus 900 may further include a receiving module 804 and a filtering module 805 in addition to the modules of the apparatus 800.
The receiving module 804 is configured to receive an account filter sent by the second server, where the account filter is constructed according to n second target accounts.
The filtering module 805 is configured to filter the m first target accounts from the k first target accounts by using the account filter, where the probability that the first target account obtained by filtering belongs to the n second target accounts is greater than 0, and k is a positive integer greater than m and n.
Wherein the account filter may be a bloom filter.
Referring to fig. 10, another apparatus 1000 for determining the same account in different account sets is provided in the embodiments of the present application, as shown in fig. 10, the apparatus 1000 may be configured in the second server 202 in fig. 2, and the apparatus 1000 may further include a construction module 806 and a sending module 807 in addition to the modules including the apparatus 800.
The constructing module 806 is configured to construct an account filter according to the n second target accounts, where the account filter is configured to filter the m first target accounts from k first target accounts, and the probability that the first target account obtained by filtering belongs to the n second target accounts is greater than 0, and k is a positive integer greater than m and n.
The sending module 807 is configured to send the account filter to a first server.
Wherein the account filter may be a bloom filter.
Optionally, the first server stores a first target account number, and the second server stores a second target account number;
the first target account is an account of which the corresponding client side displays the target popularization information, and the second target account is an account of which the corresponding client side performs target operation on commodities promoted by the target popularization information.
Optionally, the first server stores a first target account number, and the second server stores a second target account number;
the first target account is an account of which the corresponding client side displays the target popularization information, and the second target account is an account of which the corresponding client side performs target operation on commodities promoted by the target popularization information; or,
The first target account is an account of which the corresponding client performs target operation on the commodity promoted by the target promotion information, and the second target account is an account of which the corresponding client performs display on the target promotion information.
Optionally, the first server stores a first target account number, and the second server stores a second target account number;
the first target account is an account of which the corresponding client side displays the target popularization information, and the second target account is an account of which the client side needs to display the target popularization information; or,
the first target account is an account corresponding to a client which needs to display the target popularization information, and the second target account is an account corresponding to the client which displays the target popularization information.
In summary, by obtaining the first account set and the second account set and determining the same account in the m first target accounts and the n second target accounts according to the intersection of the first account set and the second account set, where the first account set includes m first encrypted accounts, the first encrypted account is obtained by encrypting the corresponding first target account sequentially through the first encryption algorithm and the second encryption algorithm, the second account set includes n second encrypted accounts, the second encrypted account is obtained by encrypting the corresponding second target account sequentially through the second encryption algorithm and the first encryption algorithm, the encrypted account obtained by encrypting the same account sequentially through the first encryption algorithm and the second encryption algorithm is the same as the encrypted account obtained by encrypting the same account sequentially through the second encryption algorithm and the first encryption algorithm, and because the first encryption algorithm and the second encryption algorithm are respectively the server with the m first target accounts and the server with the n second target accounts, the second account has no access right, the server can not be enabled to have the right to access the server according to the right of the second account, and the right of the server can not be enabled to have the right to be decrypted by the second account set.
Referring to fig. 11, a block diagram of an apparatus 1100 for determining the same account in different account sets according to an embodiment of the present application is shown, where the apparatus 1100 may be configured in the first server 201 or the second server 202 in fig. 2. As shown in fig. 11, the apparatus 1100 may include a first acquisition module 1101, a second acquisition module 1102, and a determination module 1103.
The first obtaining module 1101 is configured to obtain, by using the first obtaining module 1101, the first account set including m first encrypted accounts corresponding to m first target accounts one-to-one, where the first encrypted accounts are obtained by sequentially encrypting corresponding first target accounts through a first encryption algorithm and a second encryption algorithm, where a client corresponding to the first target account exposes target popularization information, the first encryption algorithm is an encryption algorithm used by a server storing the first target account, and m is a positive integer.
The second obtaining module 1102 is configured to obtain, by using the second account set, n second encrypted accounts corresponding to n second target accounts one-to-one, where the second encrypted accounts are obtained by sequentially encrypting the corresponding second target accounts with the second encryption algorithm and the first encryption algorithm, where a client corresponding to the second target account performs a target operation on a commodity promoted by the target promotion information, and the second encryption algorithm is an encryption algorithm used by a server storing the second target account, and n is a positive integer.
The determining module 1103 is configured to determine, according to an intersection of the first account set and the second account set, the same account of the m first target accounts and the n second target accounts, where an encrypted account obtained by encrypting the same account sequentially through the first encryption algorithm and the second encryption algorithm is the same as an encrypted account obtained by sequentially encrypting the same account through the second encryption algorithm and the first encryption algorithm.
In summary, the device for determining the same account in different account sets provided in this embodiment of the present application determines the same account in m first target accounts and n second target accounts according to the intersection of the first account set and the second account set, where the first account set includes m first encrypted accounts, the first encrypted accounts are obtained by sequentially encrypting corresponding first target accounts through a first encryption algorithm and a second encryption algorithm, the second account set includes n second encrypted accounts, the second encrypted accounts are obtained by sequentially encrypting corresponding second target accounts through a second encryption algorithm and a first encryption algorithm, a client corresponding to the first target accounts exposes the target popularization information, the client corresponding to the second target account performs target operation on the commodity promoted by the target popularization information, the encrypted account obtained by sequentially encrypting the same account through the first encryption algorithm and the second encryption algorithm is the same as the encrypted account obtained by sequentially encrypting the same account through the second encryption algorithm and the first encryption algorithm, and the first encryption algorithm and the second encryption algorithm are encryption algorithms used by a popularization information exposer and a popularization information provider respectively, so that the real account of the user cannot be reversely decrypted according to the first account set or the second account set under the condition that one merchant does not know the encryption algorithm used by the other merchant, and the data security of the popularization information exposer and the popularization information provider can be ensured.
Fig. 12 is a schematic diagram showing a structure of a server according to an exemplary embodiment. The server 1200 includes a Central Processing Unit (CPU) 1201, a system memory 1204 including a Random Access Memory (RAM) 1202 and a Read Only Memory (ROM) 1203, and a system bus 1205 connecting the system memory 1204 and the central processing unit 1201. The server 1200 also includes a basic input/output system (I/O system) 1206, which helps to transfer information between various devices within the computer, and a mass storage device 1207 for storing an operating system 1213, application programs 1214, and other program modules 1215.
The basic input/output system 1206 includes a display 1208 for displaying information and an input device 1209, such as a mouse, keyboard, etc., for user input of information. Wherein the display 1208 and the input device 1209 are coupled to the central processing unit 1201 via an input-output controller 1210 coupled to a system bus 1205. The basic input/output system 1206 may also include an input/output controller 1210 for receiving and processing input from a number of other devices, such as a keyboard, mouse, or electronic stylus. Similarly, the input output controller 1210 also provides output to a display screen, a printer, or other type of output device.
The mass storage device 1207 is connected to the central processing unit 1201 through a mass storage controller (not shown) connected to the system bus 1205. The mass storage device 1207 and its associated computer-readable media provide non-volatile storage for the server 1200. That is, the mass storage device 1207 may include a computer readable medium (not shown), such as a hard disk or CD-ROM drive.
The computer readable medium may include computer storage media and communication media without loss of generality. Computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media includes RAM, ROM, EPROM, EEPROM, flash memory or other solid state memory technology, CD-ROM, DVD or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices. Of course, those skilled in the art will recognize that the computer storage medium is not limited to the one described above. The system memory 1204 and mass storage device 1207 described above may be collectively referred to as memory.
The server 1200 may also operate via a network, such as the internet, connected to remote computers on the network, in accordance with various embodiments of the present invention. I.e., the server 1200 may be connected to the network 1212 through a network interface unit 1211 coupled to the system bus 1205, or alternatively, the network interface unit 1211 may be used to connect to other types of networks or remote computer systems (not shown).
The memory further includes one or more programs stored in the memory, and the central processor 1201 implements the method for determining the same account in different account sets according to the embodiments of the present application by executing the one or more programs.
In an exemplary embodiment, a non-transitory computer-readable storage medium is also provided, such as a memory, including instructions executable by a processor of a server to perform the method of determining the same account in different account sets shown in various embodiments of the present application. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
The application embodiment also provides a computer readable storage medium, which is a non-volatile storage medium, and at least one instruction, at least one section of program, a code set or an instruction set is stored in the storage medium, and the at least one instruction, the at least one section of program, the code set or the instruction set is loaded and executed by a processor to implement a method for determining the same account in different account sets as provided in the above embodiment of the application.
The present application also provides a computer program product having instructions stored therein, which when run on a computer, enable the computer to perform the method for determining the same account in different account sets provided in the above embodiments of the present application.
The embodiment of the application also provides a chip, which comprises a programmable logic circuit and/or program instructions, and when the chip runs, the method for determining the same account in different account sets provided by the embodiment of the application can be executed.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program for instructing relevant hardware, where the program may be stored in a computer readable storage medium, and the storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The foregoing description of the preferred embodiments of the present application is not intended to limit the invention to the particular embodiments of the present application, but to limit the scope of the invention to the particular embodiments of the present application.

Claims (10)

1. A method for determining the same account number in different account number sets, wherein the method is applied to a first server and a second server, one of the first server and the second server is a server of a promotion information provider, and the other is a server of a promotion information exposer, the method comprising:
the first server acquires k first target accounts from a first account database, wherein k is a positive integer, and the first account database is maintained in the first server;
the second server acquires n second target account numbers from a second account number database, wherein n is a positive integer, and the second account number database is maintained in the second server;
the second server builds an account filter according to the n second target accounts and sends the account filter to the first server;
the first server filters m first target accounts from the k first target accounts by using the account filter, wherein m is a positive integer, the possibility that the first target account obtained by filtering belongs to the n second target accounts is greater than 0, and k is a positive integer greater than m and n;
The first server encrypts each first target account number in the m first target account numbers by using a first encryption algorithm to obtain m first initial encryption account numbers corresponding to the m first target account numbers one by one, performs disorder processing on the m first initial encryption account numbers to obtain a first initial account number set comprising the m first initial encryption account numbers subjected to the disorder processing, and sends the first initial account number set to the second server;
the second server uses a second encryption algorithm to encrypt each first initial encryption account in the first initial account set after the disorder treatment to obtain m first encryption accounts, carries out the disorder treatment to the m first encryption accounts to obtain a first account set comprising the m first encryption accounts after the disorder treatment, and sends the first account set to the first server;
the second server encrypts each second target account number in the n second target account numbers by using the second encryption algorithm to obtain n second initial encryption account numbers corresponding to the n second target account numbers one by one, performs disorder processing on the n second initial encryption account numbers to obtain a second initial account number set comprising the n second initial encryption account numbers subjected to the disorder processing, and sends the second initial account number set to the first server;
The first server uses the first encryption algorithm to encrypt each second initial encryption account in the second initial account set after the disorder treatment to obtain n second encryption accounts, performs the disorder treatment to the n second encryption accounts to obtain a second account set comprising the n second encryption accounts after the disorder treatment, and sends the second account set to the second server;
the first server and/or the second server determine the same account number in the m first target account numbers and the n second target account numbers according to the intersection of the first account number set and the second account number set;
the encrypted account number obtained by sequentially encrypting the same account number through the first encryption algorithm and the second encryption algorithm is the same as the encrypted account number obtained by sequentially encrypting the same account number through the second encryption algorithm and the first encryption algorithm;
wherein the first encryption algorithmComprising the following steps:
；
the second encryption algorithmComprising the following steps:
；
where mod is the modulo operator, p is a real number, e1 and e2 are real numbers less than p, and p and (p-1)/2 are prime numbers.
2. The method of claim 1, wherein the account filter is a bloom filter.
3. The method of claim 1, wherein the first target account is an account for which the corresponding client displays target promotional information, and the second target account is an account for which the corresponding client performs target operations on goods promoted by the target promotional information.
4. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the first target account is an account of which the corresponding client side displays the target popularization information, and the second target account is an account of which the corresponding client side performs target operation on the commodity promoted by the target popularization information; or,
the first target account is an account of which the corresponding client performs target operation on the commodity promoted by the target promotion information, and the second target account is an account of which the corresponding client performs display on the target promotion information.
5. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the first target account is an account of which the corresponding client side displays the target popularization information, and the second target account is an account of which the corresponding client side needs to display the target popularization information; or,
The first target account is an account corresponding to a client which needs to display the target popularization information, and the second target account is an account corresponding to the client which displays the target popularization information.
6. A method for determining the same account number in different account number sets, the method being applied to a first server and a second server, the first server being a server of a promotional information exposure provider, the second server being a server of a promotional information provider, the method comprising:
the first server acquires k first target accounts from a first account database, wherein k is a positive integer, and the first account database is maintained in the first server;
the second server acquires n second target account numbers from a second account number database, wherein n is a positive integer, and the second account number database is maintained in the second server;
the second server builds an account filter according to the n second target accounts and sends the account filter to the first server;
the first server filters m first target accounts from the k first target accounts by using the account filter, wherein m is a positive integer, the possibility that the first target account obtained by filtering belongs to the n second target accounts is greater than 0, and k is a positive integer greater than m and n;
The first server encrypts each first target account number in the m first target account numbers by using a first encryption algorithm to obtain m first initial encryption account numbers corresponding to the m first target account numbers one by one, performs disorder processing on the m first initial encryption account numbers to obtain a first initial account number set comprising the m first initial encryption account numbers subjected to the disorder processing, and sends the first initial account number set to the second server;
the second server uses a second encryption algorithm to encrypt each first initial encryption account in the first initial account set after the disorder treatment to obtain m first encryption accounts, carries out the disorder treatment to the m first encryption accounts to obtain a first account set comprising the m first encryption accounts after the disorder treatment, and sends the first account set to the first server;
the second server encrypts each second target account number in the n second target account numbers by using the second encryption algorithm to obtain n second initial encryption account numbers corresponding to the n second target account numbers one by one, performs disorder processing on the n second initial encryption account numbers to obtain a second initial account number set comprising the n second initial encryption account numbers subjected to the disorder processing, and sends the second initial account number set to the first server;
The first server uses the first encryption algorithm to encrypt each second initial encryption account in the second initial account set after the disorder treatment to obtain n second encryption accounts, performs the disorder treatment to the n second encryption accounts to obtain a second account set comprising the n second encryption accounts after the disorder treatment, and sends the second account set to the second server;
the client corresponding to the first target account exposes the target popularization information, and the first encryption algorithm is an encryption algorithm used by a server storing the first target account; the client corresponding to the second target account performs target operation on the commodity promoted by the target promotion information, and the second encryption algorithm is an encryption algorithm used by a server storing the second target account;
the first server and/or the second server determine the same account number in the m first target account numbers and the n second target account numbers according to the intersection of the first account number set and the second account number set;
the encrypted account number obtained by sequentially encrypting the same account number through the first encryption algorithm and the second encryption algorithm is the same as the encrypted account number obtained by sequentially encrypting the same account number through the second encryption algorithm and the first encryption algorithm;
Wherein the first encryption algorithmComprising the following steps:
；
the second encryption algorithmComprising the following steps:
；
where mod is the modulo operator, p is a real number, e1 and e2 are real numbers less than p, and p and (p-1)/2 are prime numbers.
7. An apparatus for determining the same account in different account sets, wherein the apparatus is used in a first server, and a first account database is maintained in the first server, the apparatus includes:
the receiving module is used for acquiring k first target account numbers from the first account number database, wherein k is a positive integer; receiving an account filter sent by a second server, wherein n is a positive integer, and the second server is used for acquiring n second target accounts from a second account database and constructing the account filter according to the n second target accounts; one of the first server and the second server is a server of a promotion information provider, and the other is a server of a promotion information exposer;
the filtering module is used for filtering the k first target accounts to obtain m first target accounts by using the account filter, wherein m is a positive integer, the possibility that the first target accounts obtained by filtering belong to the n second target accounts is greater than 0, and k is a positive integer greater than m and n;
The first encryption module is used for encrypting each first target account number in the m first target account numbers by using a first encryption algorithm to obtain m first initial encryption account numbers corresponding to the m first target account numbers one by one, carrying out disorder processing on the m first initial encryption account numbers to obtain a first initial account number set comprising the m first initial encryption account numbers subjected to the disorder processing, and sending the first initial account number set to the second server;
the first acquisition module is used for acquiring a first account set sent by the second server, wherein the first account set comprises m first encrypted accounts subjected to disorder processing, and the first encrypted accounts are obtained by the second server through performing secondary encryption on each first encrypted account subjected to disorder processing in a first initial account set by using a second encryption algorithm;
the second acquisition module is used for acquiring a second initial account set sent by the second server, wherein the second initial account set comprises n second initial encryption accounts which are subjected to disordered processing, and the n second initial encryption accounts are accounts which are obtained by encrypting each second target account in the n second target accounts by the second server through the second encryption algorithm and are in one-to-one correspondence with the n second target accounts;
The second encryption module is used for carrying out secondary encryption on each second initial encryption account in the second initial account set after the disorder treatment by using the first encryption algorithm to obtain n second encryption accounts, carrying out disorder treatment on the n second encryption accounts to obtain a second account set comprising the n second encryption accounts after the disorder treatment, and sending the second account set to the second server;
the determining module is used for determining the same account number in the m first target account numbers and the n second target account numbers according to the intersection set of the first account number set and the second account number set;
the encrypted account number obtained by sequentially encrypting the same account number through the first encryption algorithm and the second encryption algorithm is the same as the encrypted account number obtained by sequentially encrypting the same account number through the second encryption algorithm and the first encryption algorithm;
wherein the first encryption algorithmComprising the following steps:
；
the second encryption algorithmComprising the following steps:
；
where mod is the modulo operator, p is a real number, e1 and e2 are real numbers less than p, and p and (p-1)/2 are prime numbers.
8. An apparatus for determining the same account number in different account number sets, wherein the apparatus is used in a first server, a first account number database is maintained in the first server, the first server is a server of a promotional information exposer, and the second server is a server of a promotional information provider, the apparatus comprises:
The receiving module is used for acquiring k first target account numbers from the first account number database, wherein k is a positive integer; receiving an account filter sent by the second server, wherein n is a positive integer, and the second server is used for acquiring n second target accounts from a second account database and constructing the account filter according to the n second target accounts;
the filtering module is used for filtering the k first target accounts to obtain m first target accounts by using the account filter, wherein m is a positive integer, the possibility that the first target accounts obtained by filtering belong to the n second target accounts is greater than 0, and k is a positive integer greater than m and n;
the first encryption module is used for encrypting each first target account number in the m first target account numbers by using a first encryption algorithm to obtain m first initial encryption account numbers corresponding to the m first target account numbers one by one, carrying out disorder processing on the m first initial encryption account numbers to obtain a first initial account number set comprising the m first initial encryption account numbers subjected to the disorder processing, and sending the first initial account number set to the second server; exposing the target popularization information by the client corresponding to the first target account, wherein the first encryption algorithm is an encryption algorithm used by a server storing the first target account, and m is a positive integer;
The first acquisition module is used for acquiring a first account set sent by the second server, wherein the first account set comprises m first encrypted accounts subjected to disorder processing, and the first encrypted accounts are obtained by the second server through performing secondary encryption on each first encrypted account subjected to disorder processing in a first initial account set by using a second encryption algorithm;
the second acquisition module is used for acquiring a second initial account set sent by the second server, wherein the second initial account set comprises n second initial encryption accounts which are subjected to disordered processing, and the n second initial encryption accounts are accounts which are obtained by encrypting each second target account in the n second target accounts by the second server through the second encryption algorithm and are in one-to-one correspondence with the n second target accounts; the client corresponding to the second target account performs target operation on the commodity promoted by the target promotion information, the second encryption algorithm is an encryption algorithm used by a server storing the second target account, and n is a positive integer;
the second encryption module is used for carrying out secondary encryption on each second initial encryption account in the second initial account set after the disorder treatment by using the first encryption algorithm to obtain n second encryption accounts, carrying out disorder treatment on the n second encryption accounts to obtain a second account set comprising the n second encryption accounts after the disorder treatment, and sending the second account set to the second server;
The determining module is used for determining the same account number in the m first target account numbers and the n second target account numbers according to the intersection set of the first account number set and the second account number set;
the encrypted account number obtained by sequentially encrypting the same account number through the first encryption algorithm and the second encryption algorithm is the same as the encrypted account number obtained by sequentially encrypting the same account number through the second encryption algorithm and the first encryption algorithm;
wherein the first encryption algorithmComprising the following steps:
；
the second encryption algorithmComprising the following steps:
；
where mod is the modulo operator, p is a real number, e1 and e2 are real numbers less than p, and p and (p-1)/2 are prime numbers.
9. The device for determining the same account number in different account number sets is characterized by comprising a processor and a memory, wherein at least one instruction is stored in the memory;
the instructions being loaded and executed by the processor to implement the method of determining the same account in different account sets as claimed in any one of claims 1 to 5; alternatively, the instructions are loaded and executed by the processor to implement the method of determining the same account in different account sets as defined in claim 6.
10. A computer-readable storage medium having at least one instruction stored therein;
the instructions being loaded and executed by a processor to implement the method of determining the same account in different account sets as claimed in any one of claims 1 to 5; or,
the instructions being loaded and executed by a processor to implement the method of determining the same account in different account sets as claimed in claim 6.
CN201810964176.7A 2018-08-22 2018-08-22 Method, device and storage medium for determining same account in different account sets Active CN110213216B (en)

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