CN107708103B - Method for realizing number security based on MAP signaling - Google Patents
Method for realizing number security based on MAP signaling Download PDFInfo
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- CN107708103B CN107708103B CN201711074389.4A CN201711074389A CN107708103B CN 107708103 B CN107708103 B CN 107708103B CN 201711074389 A CN201711074389 A CN 201711074389A CN 107708103 B CN107708103 B CN 107708103B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/08—Mobility data transfer
- H04W8/14—Mobility data transfer between corresponding nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/26—Network addressing or numbering for mobility support
Abstract
The invention relates to the technical field of communication, and aims to provide a method and a system for realizing number privacy based on MAP signaling. Using a secret number platform as a simulated visiting location register of the secret number, and sending a location registration request to a number attribution HLR according to the information of the number IMSI, LAI and the like so as to register the secret number on the platform; the platform returns the dynamic roaming number of the secret number after receiving the message of requesting the dynamic roaming number initiated by the home location register; the platform receives the calling event of the secret number through the dynamic roaming number, then obtains the called number information through the DTMF number receiving function, and then carries out addressing through the platform to complete the calling continuing event. The invention does not need to change the current network system, uses the idle number as the secret number and registers the secret number on the secret number platform to realize the number secret. The method can keep the number information of the calling party and the called party secret in the communication service, does not need to change real numbers of users, and has the advantages of one-to-one correspondence between incoming calls and outgoing calls, full utilization of idle numbers and the like.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a method and a system for realizing number privacy based on MAP signaling.
Background
With the development of mobile internet services, people increasingly use mobile clients for shopping and consumption. However, electronic commerce brings convenience to the life of people and also causes a great deal of personal information to be leaked, and various harassments caused by information leakage also cause people to be unhappy. Although various interception software based on a mobile client can realize the filtration of advertisement calls and the addition of blacklist users at present, the leakage of user information cannot be avoided from the source, and a lot of trouble is brought to users.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects in the prior art and provide a method and a system for realizing number privacy based on MAP signaling.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a system for realizing number security based on MAP signaling is provided, which comprises a mobile communication system platform operated in a conventional mode and is characterized by also comprising a security number platform for realizing the security of number information of both parties of communication, wherein the security number platform has the attribute of a visitor location register, serves an MSCS, can send a location update request message to a home location register according to IMSI and LAI information of the number, records the location information of the number and registers the number on the security number platform; the secret number platform specifically comprises:
the account opening and canceling module is used for being responsible for registering and canceling the service; pre-allocating by using idle number resources of a mobile communication system platform as secret number resources, binding numbers within the service validity period, unbinding the numbers after the service is finished and enabling the numbers to enter a number pool of the mobile communication system platform again to serve as number resources of the next service;
the number processing module is used for determining the number binding relationship according to the calling event and analyzing a real number;
the call processing module is used for processing the PRN request message of the HLR and returning a PRN response message of the secret number to the HLR; meanwhile, the IAM request message sent by the MSC is processed, and call addressing and call connection are initiated;
and the signaling processing module is used for realizing signaling exchange with a signaling network, time slot overlapping and connection of the E1 relay route.
The invention further provides a method for realizing number security based on MAP signaling by using the system, which comprises the following steps:
(1) the security number platform initiates a MAP signaling location registration request (update location) message to a home location register HLR of the mobile communication system platform;
(2) the HLR pre-allocates and registers idle number resources, and returns a position response message to the secret number platform after the registration is successful;
(3) the service platform initiates a service request for binding the secret number;
(4) after receiving the request, the secret number platform allocates a temporary secret number (an account opening module allocates available number resources to a service account according to an account opening request of the service platform), and binds the calling number and the temporary secret number; then, returning a response message of successful number binding to the service platform, and recording the corresponding relation of the numbers by the service platform;
(5) a calling user initiates a calling request for a secret number to a calling MSC;
(6) the calling MSC initiates an MAP signaling SRI message to HLR to execute an addressing processing flow and inquires routing information of the secret number;
(7) after receiving the SRI message, the HLR sends a MAP signaling PRN message to a secret number platform, and registers a position request dynamic roaming number according to the secret number;
(8) the security number platform returns a PRN response message to the HLR;
(9) HLR returns SRI response message to calling MSC;
(10) the calling MSC transfers the call to a secret number platform by an IAM request message according to the obtained dynamic roaming number path;
(11) after receiving the IAM request message, the secret number platform analyzes the called number according to the DTMF information sent by the service platform; if the number is a non-service number calling, directly obtaining a binding number corresponding to the secret number from the binding relationship as a called number; then, the call processing module initiates a MAP signaling request routing message to the HLR where the called number is located;
(12) after receiving the route request message, the called HLR initiates a MAP signaling PRN message to the called MSC to request a dynamic roaming number;
(13) the called MSC returns the called dynamic roaming number to the called HLR;
(14) after receiving the roaming number response message, the called HLR returns a routing response message to the secret number platform;
(15) the secret number platform initiates a calling request to the called MSC through an IAM request message according to the routing information response;
(16) after receiving the called response, the called MSC returns an ISUP call connection message: the ACM and ANM information is sent to a secret number platform;
(17) the security number platform forwards an ISUP call connection message to the calling MSC, and the call connection is successful; the display numbers of the calling party and the called party are secret numbers distributed by the secret number platform;
(18) after the call is finished, the service platform actively initiates a number unbinding request to the secret number platform;
(19) the secret number platform releases the binding relationship between the calling number and the secret number, releases the secret number resource and returns a number unbinding success response to the service platform.
In the invention, for the call initiated by the service platform, the secret number platform receives the real number through DTMF, so as to realize the addressing of the real number; for the call without service request, the security number platform automatically obtains the corresponding binding number from the security number binding relation data as the called number, and initiates the call addressing; for the call without service request and binding relation, the authentication process of the platform of the secret number executes judgment, sends REL message to terminate the call, and triggers an alarm mechanism.
In the invention, a calling port of a number processing module is opened, so that an internet APP server can access the calling port; in order to increase network security, only the port corresponding to the IP address of the internal network of the system is opened.
Description of the inventive principles:
the invention provides a number privacy scheme for both parties of a call: the secret number platform is used as a simulated visitor location register of the secret number, and sends a location update message to the number attribution HLR according to the information of the number IMSI, LAI and the like, so that the secret number is registered on the platform; the platform returns the dynamic roaming number of the secret number after receiving the message of requesting the dynamic roaming number initiated by the home location register; the platform receives the calling event of the secret number through the dynamic roaming number, then obtains the called number information through the DTMF number receiving function, and then carries out addressing through the platform to complete the calling continuing event. The invention does not need any change of the current network system, uses the idle number as the secret number and registers the position information of the secret number on the secret number platform to realize the secret number.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention utilizes the idle number resource of the current network, and realizes the number security solution by the platform through simulating the function of the security number VLR on the basis of not changing the current network system.
2. The invention can keep the number information of the calling party and the called party secret in the communication service, does not need to change the real number of the user, has one-to-one correspondence between the incoming call and the outgoing call, and fully utilizes the advantages of idle numbers and the like.
3. The calling port is opened, so that the internet APP server can access (in order to increase network security, only the port corresponding to the system intranet IP address can be opened).
4. The hardware system of the secret number platform consists of a service processing server cluster and network equipment, and all modules operate in a main standby mode; the service processing, the database and the BOSSP program are configured by the main machine and the standby machine, so that the safe and stable operation can be ensured.
5. The secret number platform can realize a strict technical control mechanism, limit platform voice and signaling use mechanisms, and immediately trigger an alarm mechanism once voice and signaling risks except products are found, so that the phenomenon that the secret number abuses other illegal behaviors is avoided.
6. The calling of the temporary secret number related to the secret number platform has a one-to-one corresponding incoming and outgoing combined relation, and the exchange side can judge whether the secret number is completely applied to a secret number product or not through the phenomenon. The calling-secret number is the only binding relation, and within the service validity period, no matter the number displayed by the calling terminal or the called terminal is the secret number, the number information of the calling party and the called party is not leaked, and malicious harassment caused by information leakage is prevented.
Drawings
FIG. 1 is a schematic diagram of a system networking;
FIG. 2 is a schematic diagram of the module connection of the present invention;
fig. 3 is a schematic diagram of signaling message flow in the present invention (steps 1-4).
Fig. 4 is a schematic diagram of signaling message flow in the present invention (steps 5-17).
Fig. 5 is a schematic diagram of signaling message flow in the present invention (steps 18-19).
Detailed Description
First, each english abbreviation used in the present invention will be explained:
and (3) MAP signaling: mobile Application Part, used for interfaces between MSC, VLR, HLR.
MSC Mobile Switching Center: the mobile switching center is used for signaling exchange and time slot overlapping of the call;
HLR: the Home Location Register, the database responsible for the management of the mobile users, permanently stores and records the subscription data of the users in the area under jurisdiction, and dynamically updates the position information of the users.
IMSI: the International Mobile Subscriber Identification Number is a mark for distinguishing the Mobile Subscriber, is stored in the SIM card, and can be used for distinguishing the effective information of the Mobile Subscriber.
LAI: location Area Identity, Location Area number.
DTMF: dual Tone multiple Frequency, a type of user signaling between a telephone set and an exchange in a telephone system, is commonly used to transmit a called number.
SRI: and Sending Routing Information, requesting Routing Information.
PRN: provide Roaming Number, provides a Roaming Number.
IAM: initial Address Message, part of an integrated services digital network (ISUP) call setup. The message is used to grab the circuit, transmit addressing, call processing or path information.
MSCS: mobile Switching Center Server.
MS Paging: mobile Subscriber Paging.
ISUP: ISDN User Part, the ISDN User Part, which is a main protocol of signaling system No. 7, defines protocols and procedures for setting up, managing and releasing relay circuits.
And (3) ACM: address Complete Message; address full message in ISUP signaling message.
ANM: answer Message; the response message in the ISUP signaling message.
The platform of secret number is mounted and operated in the platform (current network) of mobile communication system which operates in a conventional mode. The secret number platform comprises an account opening module, a number processing module, a call processing module and a signaling processing module, besides, the home location register, the service account and the like are service platforms or functional modules in a conventional mobile communication system platform, and the problem of confusion can be understood by a person skilled in the art without confusion.
Except secret number and idle number, the numbers of the invention refer to the numbers of users (including the numbers of mobile, telecom, Unicom and other service providers) capable of making calls through a mobile communication system platform. The user number is normally opened, the secret number platform realizes the voice lap joint of the current secret number network through the current network voice E1 channel, the whole process is the normal calling and called voice lap joint flow of the current network, and the voice relay only provides a voice channel lap joint channel.
The following describes a specific implementation process of the present invention with reference to specific embodiments.
The system for realizing number privacy based on MAP signaling comprises a mobile communication system platform operating in a conventional mode and a privacy number platform for realizing the privacy of number information of two parties in communication, wherein the platform has the attribute of a visitor location register, serves an MSCS, can send a location updating request message to a home location register according to IMSI and LAI information of the number, records the location information of the number and registers the number on the privacy number platform.
The secret number platform specifically comprises: the account opening and canceling module is used for being responsible for registering and canceling the service; pre-allocating by using idle number resources of a mobile communication system platform as secret number resources, binding numbers within the service validity period, unbinding the numbers after the service is finished and enabling the numbers to enter a number pool of the mobile communication system platform again to serve as number resources of the next service; the number processing module is used for determining the number binding relationship according to the calling event and analyzing a real number; a call processing module, which is used for processing the MAP signaling PRN request message of the HLR and returning the PRN response message of the secret number to the HLR; meanwhile, the IAM request message sent by the MSC is processed, and call addressing and call connection are initiated; and the signaling processing module is used for realizing signaling exchange with a signaling network, time slot overlapping and connection of the E1 relay route.
The hardware system of the secret number platform consists of a service processing server cluster and network equipment, and all modules operate in a main standby mode; the service processing, the database and the BOSSP program are configured by a main machine and a standby machine.
Based on the system, the method for realizing number security based on the MAP signaling is realized by the following steps:
(1) the security number platform initiates a MAP signaling location registration request (update location) message to a home location register HLR of the mobile communication system platform;
(2) the HLR pre-allocates and registers idle number resources, after the registration is successful, the HLR returns a position response message to the secret number platform, and an account opening and canceling module allocates available number resources to a service account according to an account opening request of the service platform;
(3) the service platform initiates a service request for binding the secret number;
(4) after receiving the request, the secret number platform distributes a temporary secret number and binds the calling number and the temporary secret number; then, returning a response message of successful number binding to the service platform, and recording the corresponding relation of the numbers by the service platform;
(5) a calling user initiates a calling request for a secret number to a calling MSC;
(6) the calling MSC initiates an MAP signaling SRI message to HLR to execute an addressing processing flow and inquires routing information of the secret number;
(7) after receiving the SRI message, the HLR sends a MAP signaling PRN message to a secret number platform, and registers a position request dynamic roaming number according to the secret number;
(8) the security number platform returns a PRN response message to the HLR;
(9) HLR returns SRI response message to calling MSC;
(10) the calling MSC transfers the call to a secret number platform by an IAM request message according to the obtained dynamic roaming number path;
(11) after receiving the IAM request message, the secret number platform analyzes the called number according to the DTMF information sent by the service platform; if the number is a non-service number calling, directly obtaining a binding number corresponding to the secret number from the binding relationship as a called number; then, the call processing module initiates a MAP signaling request routing message to the HLR where the called number is located;
(12) after receiving the route request message, the called HLR initiates a MAP signaling PRN message to the called MSC to request a dynamic roaming number;
(13) the called MSC returns the called dynamic roaming number to the called HLR;
(14) after receiving the roaming number response message, the called HLR returns a routing response message to the secret number platform;
(15) the secret number platform initiates a calling request to the called MSC through an IAM request message according to the routing information response;
(16) after receiving the called response, the called MSC returns an ISUP call connection message (ACM and ANM message) to the secret number platform;
(17) the security number platform forwards an ISUP call connection message to the calling MSC, and the call connection is successful; the display numbers of the calling party and the called party are secret numbers distributed by the secret number platform;
(18) after the call is finished, the service platform actively initiates a number unbinding request to the secret number platform;
(19) the secret number platform releases the binding relationship between the calling number and the secret number, releases the secret number resource and returns a number unbinding success response to the service platform.
At this time, the secret number resource re-enters the idle number pool to provide service for the next service request.
Claims (3)
1. A method for implementing number privacy based on mobile application part MAP signaling, characterized in that it is implemented by a system comprising a mobile communication system platform operating in a conventional manner; the system also comprises a secret number platform for realizing the secret of the number information of both parties of the call, wherein the secret number platform has the attribute of a visitor location register, serves a Mobile Switching Center (MSCS) server, and can send a location updating request message to a home location register according to the International Mobile Subscriber Identity (IMSI) and location area code (LAI) information of the number, record the location information of the number and register the number on the secret number platform; the secret number platform specifically comprises:
the account opening and canceling module is used for being responsible for registering and canceling the service; pre-allocating by using idle number resources of a mobile communication system platform as secret number resources, binding numbers within the service validity period, unbinding the numbers after the service is finished and enabling the numbers to enter a number pool of the mobile communication system platform again to serve as number resources of the next service;
the number processing module is used for determining the number binding relationship according to the calling event and analyzing a real number;
a call processing module, which is used for processing the PRN request message of the roaming number provided by the home location register HLR and returning the PRN response message of the secret number to the HLR; at the same time, the method also processes the initial address message IAM request message sent by the mobile switching center MSC, and initiates the call addressing and call connection;
the signaling processing module is used for realizing signaling exchange with a signaling network, time slot lapping and connection of a 30-path pulse code modulation E1 relay route;
the method for realizing number privacy based on the MAP signaling specifically comprises the following steps:
(1) the security number platform initiates a MAP signaling position registration request message to a home location register HLR of the mobile communication system platform;
(2) the HLR pre-allocates and registers idle number resources, and returns a position response message to the secret number platform after the registration is successful;
(3) the service platform initiates a service request for binding the secret number;
(4) after receiving the request, the secret number platform distributes a temporary secret number and binds the calling number and the temporary secret number; then, returning a response message of successful number binding to the service platform, and recording the corresponding relation of the numbers by the service platform;
(5) a calling user initiates a calling request for a secret number to a calling MSC;
(6) the calling MSC sends MAP signaling request routing information SRI message to HLR to execute addressing process flow, and inquires the routing information of secret number;
(7) after receiving the SRI message, the HLR sends a MAP signaling PRN message to a secret number platform, and registers a position request dynamic roaming number according to the secret number;
(8) the security number platform returns a PRN response message to the HLR;
(9) HLR returns SRI response message to calling MSC;
(10) the calling MSC transfers the call to a secret number platform by an IAM request message according to the obtained dynamic roaming number path;
(11) after receiving the IAM request message, the secret number platform analyzes the called number according to the DTMF information sent by the service platform; if the number is a non-service number calling, directly obtaining a binding number corresponding to the secret number from the binding relationship as a called number; then, the call processing module initiates a MAP signaling request routing message to the HLR where the called number is located;
(12) after receiving the route request message, the called HLR initiates a MAP signaling PRN message to the called MSC to request a dynamic roaming number;
(13) the called MSC returns the called dynamic roaming number to the called HLR;
(14) after receiving the roaming number response message, the called HLR returns a routing response message to the secret number platform;
(15) the secret number platform initiates a calling request to the called MSC through an IAM request message according to the routing information response;
(16) after receiving the called response, the called MSC returns the ISUP call connection message of the ISDN user part of the integrated services digital network: the address full message ACM in the ISUP signaling message and the response message ANM in the ISUP signaling message are sent to the secret number platform;
(17) the security number platform forwards an ISUP call connection message to the calling MSC, and the call connection is successful; the display numbers of the calling party and the called party are secret numbers distributed by the secret number platform;
(18) after the call is finished, the service platform actively initiates a number unbinding request to the secret number platform;
(19) the secret number platform releases the binding relationship between the calling number and the secret number, releases the secret number resource and returns a number unbinding success response to the service platform.
2. The method of claim 1,
for a call initiated by the service platform, the secret number platform receives a real number through DTMF (dual tone multi frequency) to realize the addressing of the real number;
for the call without service request, the security number platform automatically obtains the corresponding binding number from the security number binding relation data as the called number, and initiates the call addressing;
for the call without service request and binding relation, the authentication process of the platform of the secret number executes judgment, sends release message REL to terminate the call, and triggers an alarm mechanism.
3. The method of claim 1, further comprising:
opening a calling port of the number processing module so that an internet APP server can access the calling port; in order to increase network security, only the port corresponding to the IP address of the internal network of the system is opened.
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| CN108366075B (en) * | 2018-03-09 | 2020-09-08 | 中国—东盟信息港股份有限公司 | Security privacy number protection platform based on core network security protection strategy |
| CN109451482A (en) * | 2019-01-03 | 2019-03-08 | 中国联合网络通信集团有限公司 | Privacy number processing method, device and storage medium |
| CN110167011B (en) * | 2019-05-31 | 2022-02-18 | 中国—东盟信息港股份有限公司 | Embedded-SIM-based mobile phone number security protection system in O2O application |
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