CN108777617B - Extensible structured security two-dimensional code generation method and system - Google Patents
Extensible structured security two-dimensional code generation method and system Download PDFInfo
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- CN108777617B CN108777617B CN201810342521.3A CN201810342521A CN108777617B CN 108777617 B CN108777617 B CN 108777617B CN 201810342521 A CN201810342521 A CN 201810342521A CN 108777617 B CN108777617 B CN 108777617B
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- 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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
- H04L9/0822—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using key encryption key
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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
- H04L63/0435—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 wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption
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- 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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
- H04L9/083—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]
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- 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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0838—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these
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- 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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
- H04L9/0863—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving passwords or one-time passwords
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- 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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
- H04L9/0869—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving random numbers or seeds
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- 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
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3263—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements
Abstract
The invention provides an extensible structured safe two-dimensional code generation method.A third party application acquires a two-dimensional code (SDK); the method comprises the steps that a two-dimensional code is generated by a two-dimensional code SDK, a third party application displays or stores the two-dimensional code, the two-dimensional code comprises a first area, a second area, a third area and a fourth area, the first area is a version number and a transaction service code, the second area comprises public information, the third area is an encryption area, and the fourth area is an expansion area; the invention also provides an extensible structured safe two-dimensional code generation system, which improves the safety of the two-dimensional code and the safety of the two-dimensional code application scene.
Description
Technical Field
The invention relates to an extensible structured security two-dimensional code generation method and system.
Background
The internet is developed rapidly, and the two-dimension codes have the advantages of high efficiency, convenience, low cost and the like, so that people are used to a convenient life service mode based on the two-dimension codes, but the two-dimension codes commonly used at present are two-dimension code structures self-defined by each service, the service randomness is high, obstacles are caused to information interaction and service intercommunication, meanwhile, the two-dimension code information interaction and service safety cannot be effectively guaranteed, and risks such as falsification of transaction data or user information leakage can be caused.
The existing two-dimensional code technology may also have the following problems:
1. the safety of the application scene is not high, and the safety measures of the two-dimension code content are insufficient;
2. only the service requirements of the user need to be met, and the two-dimension code content format is solidified and cannot be flexibly expanded;
3. the two-dimension code correlation capability is only used by a self service system, and the uniform two-dimension code correlation capability cannot be published to the outside.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an extensible structured secure two-dimensional code generation method and system, so that the security of a two-dimensional code is improved, and the security of a two-dimensional code application scene is improved.
One of the present invention is realized by: an extensible structured security two-dimensional code generation method comprises the following steps:
step 1, a third party application acquires a two-dimensional code SDK;
and 2, generating a two-dimensional code by the two-dimensional code SDK, and displaying or storing the two-dimensional code by a third party application, wherein the two-dimensional code comprises a first area, a second area, a third area and a fourth area, the first area is a version number and a transaction service code, the second area comprises public information, the third area is an encryption area, and the fourth area is an expansion area.
Further, step a is included between step 1 and step 2, the third party application obtains the symmetric key, the digital certificate and the OTP seed through the two-dimensional code SDK.
Further, the step a is further specifically: the third party application applies for a symmetric key through the two-dimensional code SDK, the two-dimensional code SDK negotiates a key with the server side, then the server side encrypts the symmetric key by using the negotiated key and sends the encrypted symmetric key to the two-dimensional code SDK, and the two-dimensional code SDK decrypts the encrypted symmetric key and sends the symmetric key to the third party application;
the third-party application applies for the digital certificate through the two-dimensional code SDK, the server side encrypts the digital certificate through the symmetric key and then sends the encrypted digital certificate to the third-party application through the two-dimensional code SDK, and the third-party application decrypts the digital certificate through the symmetric key and then stores the decrypted digital certificate;
the third-party application applies for the OTP seeds through the two-dimensional code SDK, the server side encrypts the OTP seeds through the symmetric key and then sends the OTP seeds to the third-party application through the two-dimensional code SDK, and the third-party application decrypts the OTP seeds through the symmetric key and then stores the OTP seeds.
Further, the step 2 is further specifically: the two-dimension code SDK acquires visual data and private data, and generates a two-dimension code graph from the visual data; and then, carrying out layer rewriting on the private data in a graph area set by the two-dimensional code graph according to a set graph calculation method, completing two-dimensional code generation, and displaying or storing the two-dimensional code by a third party application, wherein the two-dimensional code comprises a first area, a second area, a third area and a fourth area, the first area is a version number and a transaction service code, the second area comprises public information, the third area is an encryption area, and the fourth area is an expansion area.
Further, in step 2, performing layer rewriting on the private data in a graph area set by the two-dimensional code graph according to a set graph calculation method, and completing the generation of the two-dimensional code is further specifically: and encrypting the private data to generate a ciphertext, and performing layer rewriting on the ciphertext in a graph area set by the two-dimensional code graph according to a set graph calculation method to complete the generation of the two-dimensional code.
The second invention is realized by the following steps: an extensible structured secure two-dimensional code generation system, comprising:
the SDK acquisition module is used for acquiring the two-dimensional code SDK by a third-party application;
the system comprises a generating module, a two-dimension code SDK and a third party application, wherein the two-dimension code SDK generates a two-dimension code, the third party application displays or stores the two-dimension code, the two-dimension code comprises a first area, a second area, a third area and a fourth area, the first area is a version number and a transaction service code, the second area comprises public information, the third area is an encryption area, and the fourth area is an expansion area.
Further, a data acquisition module is further included between the SDK acquisition module and the generation module, and the third-party application acquires the symmetric key, the digital certificate and the OTP seed through the two-dimensional code SDK.
Further, the data obtaining module is further specifically: the third party application applies for a symmetric key through the two-dimensional code SDK, the two-dimensional code SDK negotiates a key with the server side, then the server side encrypts the symmetric key by using the negotiated key and sends the encrypted symmetric key to the two-dimensional code SDK, and the two-dimensional code SDK decrypts the encrypted symmetric key and sends the symmetric key to the third party application;
the third-party application applies for the digital certificate through the two-dimensional code SDK, the server side encrypts the digital certificate through the symmetric key and then sends the encrypted digital certificate to the third-party application through the two-dimensional code SDK, and the third-party application decrypts the digital certificate through the symmetric key and then stores the decrypted digital certificate;
the third-party application applies for the OTP seeds through the two-dimensional code SDK, the server side encrypts the OTP seeds through the symmetric key and then sends the OTP seeds to the third-party application through the two-dimensional code SDK, and the third-party application decrypts the OTP seeds through the symmetric key and then stores the OTP seeds.
Further, the generating module is further specifically: the two-dimension code SDK acquires visual data and private data, and generates a two-dimension code graph from the visual data; and then, carrying out layer rewriting on the private data in a graph area set by the two-dimensional code graph according to a set graph calculation method, completing two-dimensional code generation, and displaying or storing the two-dimensional code by a third party application, wherein the two-dimensional code comprises a first area, a second area, a third area and a fourth area, the first area is a version number and a transaction service code, the second area comprises public information, the third area is an encryption area, and the fourth area is an expansion area.
Further, the generating module performs layer rewriting on the private data in a graph area set by the two-dimensional code graph according to a set graph calculation method, and the completing of the two-dimensional code generation further specifically includes: and encrypting the private data to generate a ciphertext, and performing layer rewriting on the ciphertext in a graph area set by the two-dimensional code graph according to a set graph calculation method to complete the generation of the two-dimensional code.
The invention has the following advantages: 1. the two-dimension code output method has the capability of outputting the two-dimension code externally, so that other third-party systems can apply for accessing the capability of using the two-dimension code without repeated construction. 2. The safety of the two-dimensional code application scene is improved. 3. The strong expansibility meets the personalized service requirement of the accessed third-party application.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
FIG. 1 is a flow chart of the method of the present invention.
Fig. 2 is a schematic diagram of an extensible structured security two-dimensional code application system according to an embodiment of the present invention.
Fig. 3 is a flowchart of an access process of a third-party application using a two-dimensional code application system according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1, the method for generating an extensible structured secure two-dimensional code of the present invention includes:
step 1, a third party application acquires a two-dimensional code SDK;
step a, a third party application applies for a symmetric key through a two-dimensional code SDK, the two-dimensional code SDK negotiates a key with a server side, then the server side encrypts the symmetric key by using the negotiated key and sends the encrypted symmetric key to the two-dimensional code SDK, and the two-dimensional code SDK decrypts the encrypted symmetric key and sends the symmetric key to the third party application;
the third-party application applies for the digital certificate through the two-dimensional code SDK, the server side encrypts the digital certificate through the symmetric key and then sends the encrypted digital certificate to the third-party application through the two-dimensional code SDK, and the third-party application decrypts the digital certificate through the symmetric key and then stores the decrypted digital certificate;
the third-party application applies for the OTP seeds through the two-dimensional code SDK, the server side encrypts the OTP seeds through the symmetric key and then sends the OTP seeds to the third-party application through the two-dimensional code SDK, and the third-party application decrypts the OTP seeds through the symmetric key and then stores the OTP seeds;
step 2, the two-dimension code SDK acquires visual data and privacy data, and generates a two-dimension code graph from the visual data; and then encrypting the private data to generate a ciphertext, wherein the ciphertext performs layer rewriting in a graph area set by the two-dimensional code graph according to a set graph calculation method to complete two-dimensional code generation, and a third party application displays or stores the two-dimensional code, wherein the two-dimensional code comprises a first area, a second area, a third area and a fourth area, the first area is a version number and a transaction service code, the second area comprises public information, the third area is an encryption area, and the fourth area is an expansion area.
The two-dimensional code can expand the area thereof according to the requirement, and can be more than four areas.
The second invention is realized by the following steps: an extensible structured secure two-dimensional code generation system, comprising:
the SDK acquisition module is used for acquiring the two-dimensional code SDK by a third-party application;
the data acquisition module is used for applying for a symmetric key by a third-party application through the two-dimensional code SDK, negotiating the key with the server side by the two-dimensional code SDK, encrypting the symmetric key by using the negotiated key by the server side, then sending the encrypted symmetric key to the two-dimensional code SDK, decrypting the encrypted symmetric key by the two-dimensional code SDK, and sending the symmetric key to the third-party application;
the third-party application applies for the digital certificate through the two-dimensional code SDK, the server side encrypts the digital certificate through the symmetric key and then sends the encrypted digital certificate to the third-party application through the two-dimensional code SDK, and the third-party application decrypts the digital certificate through the symmetric key and then stores the decrypted digital certificate;
the third-party application applies for the OTP seed through the two-dimensional code SDK, the server side encrypts the OTP seed through the symmetric key and then sends the OTP seed to the third-party application through the two-dimensional code SDK, the third-party application decrypts the OTP seed through the symmetric key and then stores the OTP seed, and the OTP seed is used for generating an OTP password;
the generation module is used for acquiring visual data and privacy data by the two-dimensional code SDK and generating a two-dimensional code graph from the visual data; and then encrypting the private data to generate a ciphertext, wherein the ciphertext performs layer rewriting in a graph area set by the two-dimensional code graph according to a set graph calculation method to complete two-dimensional code generation, and a third party application displays or stores the two-dimensional code, wherein the two-dimensional code comprises a first area, a second area, a third area and a fourth area, the first area is a version number and a transaction service code, the second area comprises public information, the third area is an encryption area, and the fourth area is an expansion area.
One specific embodiment of the present invention:
as shown in fig. 2, the logical interaction relationship of each important component in the design of the extensible structured secure two-dimensional code application system.
To use the two-dimensional code application system capability, a third party application first needs to initiate registration in the system. And acquiring related authority and certificate parameters.
And after the registration and verification of the third-party application are passed, acquiring the corresponding capacity open SDK and integrating the capacity open SDK with the application of the capacity open SDK. The third application uses the two-dimensional code application system capability by calling the SDK related method.
Some column initialization of the SDK is performed before the SDK is used. After calling sdk the initialization method, sdk obtains the digital certificate and the OTP seed from the two-dimensional code application system.
And calling the method for producing the two-dimensional code by the SDK to generate the two-dimensional code. Since the two-dimension code content is structured, the method allows the third-party service to generate service parameters which are transmitted into the third-party service.
The content format of the extensible structured two-dimensional code is defined as follows:
as shown in fig. 3, the flow is as follows:
the third application uses the two-dimension code capability and firstly performs a registration process. And then the SDK can be obtained for subsequent integration work.
And the third party application is proposed to perform key negotiation with the two-dimensional code application system and acquire the digital certificate in the application starting process, so that the safety of the communication process of the third party application is ensured. And the digital certificate participates in the signature process when the two-dimension code content is produced.
3) And suggesting that the third party application applies for the OTP seeds to the two-dimensional code application system in the user login process. The OTP seed is an important factor for producing the OTP password and is also an important component of the content of the two-dimensional code.
The process of generating the two-dimensional code is as follows:
1) the user initiates a request for generating the two-dimension code, and the content of the 'public information area' and the 'service expansion area' is transmitted as required when the request is initiated.
2) The SDK generates a one-time password (6-bit one-time password + 2-bit challenge value) by using the OTP seed, and generates an OTP code by combining the OTP code with a user identifier distributed during user registration, and then generates first region content by adding a version number.
3) And combining the generated content of the first area with the content of the 'public information area' and the 'service expansion area' transmitted by the user, and calculating and generating the content of the 'encryption area' (third area) through an encryption algorithm.
4) And inserting the content of the 'encryption area' between the third area and the fourth area to form complete two-dimensional code content and generate a picture. The following is an example of two-dimensional code content:
01,3500100630388791982742872
35010 × 2542, chen × 1360 × 580
5E86B5BAFD1EC178E050007F01000525
http://110.88.128.3/dc/download
Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.
Claims (6)
1. An extensible structured security two-dimensional code generation method is characterized in that: the method comprises the following steps:
step 1, a third party application acquires a two-dimensional code SDK;
step 2, the two-dimension code SDK acquires visual data and privacy data, and generates a two-dimension code graph from the visual data; and then encrypting the private data to generate a ciphertext, wherein the ciphertext performs layer rewriting in a graph area set by the two-dimensional code graph according to a set graph calculation method to complete two-dimensional code generation, and a third party application displays or stores the two-dimensional code, wherein the two-dimensional code comprises a first area, a second area, a third area and a fourth area, the first area is a version number and a transaction service code, the second area comprises public information, the third area is an encryption area, and the fourth area is an expansion area.
2. The method for generating extensible structured security two-dimensional code according to claim 1, wherein: step a, the third party application obtains the symmetric key, the digital certificate and the OTP seed through the two-dimensional code SDK.
3. The method for generating extensible structured security two-dimensional code according to claim 2, wherein: the step a is further specifically as follows: the third party application applies for a symmetric key through the two-dimensional code SDK, the two-dimensional code SDK negotiates a key with the server side, then the server side encrypts the symmetric key by using the negotiated key and sends the encrypted symmetric key to the two-dimensional code SDK, and the two-dimensional code SDK decrypts the encrypted symmetric key and sends the symmetric key to the third party application;
the third-party application applies for the digital certificate through the two-dimensional code SDK, the server side encrypts the digital certificate through the symmetric key and then sends the encrypted digital certificate to the third-party application through the two-dimensional code SDK, and the third-party application decrypts the digital certificate through the symmetric key and then stores the decrypted digital certificate;
the third-party application applies for the OTP seeds through the two-dimensional code SDK, the server side encrypts the OTP seeds through the symmetric key and then sends the OTP seeds to the third-party application through the two-dimensional code SDK, and the third-party application decrypts the OTP seeds through the symmetric key and then stores the OTP seeds.
4. An extensible structured security two-dimensional code generation system is characterized in that: the method comprises the following steps:
the SDK acquisition module is used for acquiring the two-dimensional code SDK by a third-party application;
the generation module is used for acquiring visual data and privacy data by the two-dimensional code SDK and generating a two-dimensional code graph from the visual data; and then encrypting the private data to generate a ciphertext, wherein the ciphertext performs layer rewriting in a graph area set by the two-dimensional code graph according to a set graph calculation method to complete two-dimensional code generation, and a third party application displays or stores the two-dimensional code, wherein the two-dimensional code comprises a first area, a second area, a third area and a fourth area, the first area is a version number and a transaction service code, the second area comprises public information, the third area is an encryption area, and the fourth area is an expansion area.
5. The system of claim 4, wherein the system comprises: the data acquisition module and the third party application are arranged between the SDK acquisition module and the generation module and acquire the symmetric key, the digital certificate and the OTP seed through the two-dimensional code SDK.
6. The system of claim 5, wherein the system comprises: the data acquisition module is further specifically: the third party application applies for a symmetric key through the two-dimensional code SDK, the two-dimensional code SDK negotiates a key with the server side, then the server side encrypts the symmetric key by using the negotiated key and sends the encrypted symmetric key to the two-dimensional code SDK, and the two-dimensional code SDK decrypts the encrypted symmetric key and sends the symmetric key to the third party application;
the third-party application applies for the digital certificate through the two-dimensional code SDK, the server side encrypts the digital certificate through the symmetric key and then sends the encrypted digital certificate to the third-party application through the two-dimensional code SDK, and the third-party application decrypts the digital certificate through the symmetric key and then stores the decrypted digital certificate;
the third-party application applies for the OTP seeds through the two-dimensional code SDK, the server side encrypts the OTP seeds through the symmetric key and then sends the OTP seeds to the third-party application through the two-dimensional code SDK, and the third-party application decrypts the OTP seeds through the symmetric key and then stores the OTP seeds.
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| CN105989522A (en) * | 2015-03-16 | 2016-10-05 | 三星电子株式会社 | Payment additional service information processing method and electronic device for supporting the same |
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| JP2007261166A (en) * | 2006-03-29 | 2007-10-11 | Oki Electric Ind Co Ltd | Printing checking sheet preparing device, printing checking sheet, preparing method for printing checking sheet, computer program, and two-dimensional code preparing device |
| CN104301747A (en) * | 2014-10-30 | 2015-01-21 | 杭州宽云视讯科技有限公司 | Generating method for digital TV dynamic video stream carrying two-dimensional code labels |
| CN105989522A (en) * | 2015-03-16 | 2016-10-05 | 三星电子株式会社 | Payment additional service information processing method and electronic device for supporting the same |
| CN105656922A (en) * | 2016-02-04 | 2016-06-08 | 腾讯科技（深圳）有限公司 | Login method and device of application program and intelligent equipment |
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