CN102035846A - Social network user identity authentication method based on relation statement - Google Patents
Social network user identity authentication method based on relation statement Download PDFInfo
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Abstract
The invention discloses a social network user identity authentication method based on a relation statement, comprising the following three steps of: 1. issuing a relation statement; 2. defining an access rule; and 3. implementing relation authentication. A user determines the relation type between the user and a friend by issuing the relation statement to the direct-relation friend of the user; a relation server builds a relation path for the user according to the relation statement issued by the user; because each level of relation is signed by a relation statement publisher, the reliability of the level of relation can be effectively guaranteed so as to integrally improve the reliability of the relation path. The method is simple and convenient for operation and convenient for verification and has better practical value and wide application prospect in the technical field of network security.
Description
(1) technical field
The present invention relates to a kind of social network method for authenticating user identity based on the relation statement, it is used for solving the problem that social network relies on relation realization access control between the member, belongs to the network security technology field.
(2) background technology
Along with being widely current of social network and increasing of customer group, the safety problem in the social network has caused that people more and more pay close attention to.Wherein, access control problem is an important content in the social network safety problem.
In social network, the user creates data resource and shares with other people, and in some cases, the user may wish that the private data resource created only shares with the good friend of particular kind of relationship.But problem is, is not direct good friend's relation between access requestor and owner, but when having indirect relation, how we go to verify the authenticity of this relation.
Current social network sites is based on the Design Mode of centralization mostly, and the relation between the member generally is to set up for it by the attribute that Website server provides according to the user, but there is serious potential safety hazard in such method for designing.At first, the user is difficult to the behavior of Website server is exercised supervision; Secondly, this method is from causing impersonation attack in essence easily, and promptly when the lawless person utilized injured party's personally identifiable information of its grasp to pretend to be the injured party, the user was difficult to lawless person's identity is discerned.
Document " Lockr: " (Amin Tootoonchian in order to realize the better privacy of social networks, Stefan Saroiu, Yashar Ganjali, " Lockr:Better privacy for socia1 networks ", CoNEXT ' 09, December1-4,2009, Rome, the title that Ita1y. " Lockr " gets for its scheme for the author) in a kind of certificate scheme based on pass thought has been proposed.This scheme requires the both sides of opening relationships mutually for the other side issues the relation proof, proves clear and definite both social relationships by relation.When the requestor applied for the resource of access destination object, showing corresponding relation proved, access control actuating station is verified the relation proof, to determine requestor's identity.The weak point of this scheme is, can only verify direct good friend's relation, can't to and the user between have an indirect relation the good friend concern authentication.
(3) summary of the invention
1, purpose: in order to overcome above problem, realization is to the authentication of user identity with indirect relation, the invention provides a kind of social network method for authenticating user identity based on the relation statement, it can solve and rely on the problem that need concern authentication when relation is implemented access control between the member to access requestor in the social network.
2, technical scheme: a kind of social network method for authenticating user identity of the present invention based on the relation statement, these method concrete steps are as follows:
Step 1: issue the relation statement
The user at first issues the relation statement for its direct good friend, comprises this Several Parameters in the relation statement: { publisher of relation statement, recipient, relationship type, timestamp }.Wherein, the publisher of relation statement is meant the promulgation person of this relation statement; The recipient is meant that relation statement publisher states the object of relation with it; Relationship type refers to concern the relation that is had between statement publisher and the recipient; The time of timestamp indexical relation statement signature.The relation statement of extensible markup language form is as follows:
＜relation statement 〉
＜publisher〉publisher public key＜/publisher 〉
＜recipient〉recipient's PKI＜/recipient 〉
＜relationship type〉relationship type＜/relationship type 〉
＜timestamp〉current time＜/timestamp 〉
＜/relation statement 〉
For example in Fig. 2, A wants B is issued the relation statement with Peer Relationships, and this relation statement can be expressed as: Sig
A(P
A, P
B, CollegueOf, TS), wherein TS refers to timestamp.In this programme, the user issues relation statement for its all direct good friends, and relation statement result is signed, and will concern at last to state to be saved in and concern on the server.Concern that server for each user reserves a relation statement storage directory, is used for depositing its relation of issuing statement.
Step 2: definition access rule
We utilize relationship type to specify authorization object, introduce simultaneously and authorize the degree of depth as the access control parameter.An access control rule also comprises four parameters: { authorization object is authorized the degree of depth for owner, resource identifier }.Wherein, the owner is meant the founder of resource; Resource identifier is represented the resource id of certain resource correspondence, and authorization object both can be that certain relation also can be certain individuality, authorizes the degree of depth to refer to the distance in the path set up according to certain relation between the user.Such as the path of setting up by Peer Relationships between A and the F is A-〉C-〉F, then the degree of depth between this moment F and A is 2.The access control rule of extensible markup language form is as follows:
＜access rule 〉
＜owner〉owner's PKI＜/owner 〉
＜resource identifier〉resource identifier＜/resource identifier 〉
＜authorization object〉relationship type of authorizing or individuality＜/authorization object 〉
＜authorize the degree of depth〉depth value of authorizing＜/authorize the degree of depth 〉
＜/access rule 〉
At last, the user signs to the resource access rule that defines, and the access control rule after will signing is kept in the local third-party server.
Step 3: implement the relation authentication
For example to have created identifier be the resource of rid to user A, and set this resource and share to the colleague, and sharing the degree of depth is 2.
We suppose that user F wants to visit this resource, then identifying procedure as shown in Figure 3, each step is described as follows:
1) F sends the application of access resources rid to A, and shows the PKI of oneself;
2) A a string random number of public key encryption and the session key of F, and return to F;
3) F returns the random number that decrypts to A with after the session key that decrypts;
4) A transfers the access rule AR=Sig of this resource correspondence to home server
A(P
A, rid, CollegueOf, 2);
5) A according to access rule to concerning that server submits to the path to set up application, to concern the server transmission: { relationship type and the degree of depth of own PKI, requestor's PKI, requirement }, and encrypt with the PKI that concerns server can be expressed as:
6) concern the requirement searching path of server according to A, find A-C-this paths of F, to using the public key encryption of A behind result's signature again.That is,
7) the A checking concerns whether result and decision that server returns authorize the F access rights.
3, advantage and effect:
The present invention comes clearly and the relation between the person of being declared for its direct good friend issues the relation statement by the user, concerns that server then comes to make that for to concern that both sides set up the path this path that concerns is more firmly credible according to the relation statement of user's signature approval.Simultaneously, introduce the visit degree of depth has also better been agreed with social networks as parameter social characteristic during mandate.All in all, the present invention has following advantage:
1) autonomous customization: in this programme, user oneself concerns statement to its direct good friend and upgrades, and the access control policy of definition resource, and all relation statement results and access control rule are by user's signature, and other people can't change.Social networks itself is only as the network application service provider, the not management of participating user data resource, thus realized that user data resource management and network service are separated, and have given prominence to the control of user to own resource.
2) convenient checking: concern that each link is all signed by different relation statement promulgation persons in the path that server returns, the user can use relation to state that promulgation person's PKI verifies relationship type.
3) behavior constraint: because the relation of each link all concerns the responsibility of signatory to this part direct relation by concerning that the publisher carries out signature authentication, farthest having retrained.
4) easy and simple to handle: the user mainly carries out two operations as client, that is: to direct good friend concern the statement and to the access control policy of resources definition based on relationship type; The object that access requestor only need provide the PKI of oneself and want to visit; All the other most of work are finished by server.
(4) description of drawings
Fig. 1 flow chart of the present invention.
Fig. 2 social network member relation schematic diagram.
The once concrete identifying procedure schematic diagram of Fig. 3.
Symbol description is as follows among the figure:
A among Fig. 2, B, C, D, E, F, G represent the user, and arrow is represented the sensing that concerns between two users, and both relationship types indicated in the literal on the arrow.
AR among Fig. 3 is meant access rule (Access Rule), nonce refers to a string random number, object feeling the pulse with the finger-tip mark object, terminate refers to session stop, and CS is the code name that concerns server, and session key refers to session key, College Of refers to Peer Relationships, depth refers to the degree of depth, and rid refers to the identifier of resource, P
XThe PKI that refers to user X, E
X(Y) refer to encrypt Y, Sig with key X
X(Y||Z) refer to that user X carries out digital signature to the content in the bracket, || refer to data are connected in series.
(5) embodiment:
See Fig. 1, the present invention is a kind of social network method for authenticating user identity based on the relation statement, and these method concrete steps are as follows:
Step 1: issue the relation statement
The user at first issues the relation statement for its direct good friend, comprises this Several Parameters in the relation statement: { publisher of relation statement, recipient, relationship type, timestamp }.Wherein the timestamp indexical relation is stated the time of signature.The extensible markup language form is that the relation statement of XML form is as follows:
＜relation statement 〉
＜publisher〉publisher public key＜/publisher 〉
＜recipient〉recipient's PKI＜/recipient 〉
＜relationship type〉relationship type＜/relationship type 〉
＜timestamp〉current time＜/timestamp 〉
＜/relation statement 〉
For example in Fig. 2, A wants B is issued the relation statement with Peer Relationships, and this relation statement can be expressed as: Sig
A(P
A, P
B, CollegueOf, TS), wherein TS refers to timestamp.In this programme, the user issues relation statement for its all direct good friends, and relation statement result is signed, and will concern at last to state to be saved in and concern on the server.Concern that server for each user reserves a relation statement storage directory, is used for depositing its relation of issuing statement.
Step 2: definition access rule
We utilize relationship type to specify authorization object, introduce simultaneously and authorize the degree of depth as the access control parameter.An access control rule also comprises four parameters: { authorization object is authorized the degree of depth for owner, resource identifier }.Wherein, resource identifier is represented the resource id of certain resource correspondence, and authorization object both can be that certain relation also can be certain individuality, authorizes the degree of depth to refer to the distance in the path set up according to certain relation between the user.Such as the path of setting up by Peer Relationships between A and the F is A-〉C-〉F, then the degree of depth between this moment F and A is 2.The access control rule of XML form is as follows:
＜access rule 〉
＜owner〉owner's PKI＜/owner 〉
＜resource identifier〉resource identifier＜/resource identifier 〉
＜authorization object〉relationship type of authorizing or individuality＜/authorization object 〉
＜authorize the degree of depth〉depth value of authorizing＜/authorize the degree of depth 〉
＜/access rule 〉
At last, the user signs to the resource access rule that defines, and the access control rule after will signing is kept in the local third-party server.
Step 3: implement the relation authentication
For example to have created identifier be the resource of rid to user A, and set this resource and share to the colleague, and sharing the degree of depth is 2.
We suppose that user F wants to visit this resource, then identifying procedure as shown in Figure 3, each step is described as follows:
1) F sends the application of access resources rid to A, and shows the PKI of oneself;
2) A a string random number of public key encryption and the session key of F, and return to F;
3) F returns the random number that decrypts to A with after the session key that decrypts;
4) A transfers the access rule AR=Sig of this resource correspondence to home server
A(P
A, rid, CollegueOf, 2);
5) A according to access rule to concerning that server submits to the path to set up application, to concern the server transmission: { relationship type and the degree of depth of own PKI, requestor's PKI, requirement }, and encrypt with the PKI that concerns server can be expressed as:
6) concern the requirement searching path of server according to A, find A-C-this paths of F, to using the public key encryption of A behind result's signature again.That is,
7) the A checking concerns whether result and decision that server returns authorize the F access rights.
Claims (1)
1. social network method for authenticating user identity based on relation statement, it is characterized in that: these method concrete steps are as follows: step 1: issue the relation statement
The user at first issues the relation statement for its direct good friend, comprises this Several Parameters in the relation statement: { publisher of relation statement, recipient, relationship type, timestamp }; Wherein, the publisher of relation statement is meant the promulgation person of this relation statement; The recipient is meant that relation statement publisher states the object of relation with it; Relationship type refers to concern the relation that is had between statement publisher and the recipient; The time of timestamp indexical relation statement signature; The relation statement of extensible markup language form is as follows:
＜relation statement 〉
＜publisher〉publisher public key＜/publisher 〉
＜recipient〉recipient's PKI＜/recipient 〉
＜relationship type〉relationship type＜/relationship type 〉
＜timestamp〉current time＜/timestamp 〉
＜/relation statement 〉
If A wants B is issued the relation statement with Peer Relationships, this relation statement can be expressed as: Sig
A(P
A, P
B, CollegueOf, TS), wherein TS refers to timestamp, at this, the user issues relation statement for its all direct good friends, and relation statement result is signed, and will concern at last to state to be saved in and concern on the server; Concern that server for each user reserves a relation statement storage directory, is used for depositing its relation of issuing statement;
Step 2: definition access rule
We utilize relationship type to specify authorization object, introduce simultaneously and authorize the degree of depth as the access control parameter; An access control rule also comprises four parameters: { authorization object is authorized the degree of depth for owner, resource identifier }; Wherein, the owner is meant the founder of resource; Resource identifier is represented the resource id of certain resource correspondence, and authorization object both can be that certain relation also can be certain individuality, authorizes the degree of depth to refer to the distance in the path set up according to certain relation between the user; As the path of setting up by Peer Relationships between A and the F is A-〉C-〉F, then the degree of depth between this moment F and A is 2; The access control rule of extensible markup language form is as follows:
＜access rule 〉
＜owner〉owner's PKI＜/owner 〉
＜resource identifier〉resource identifier＜/resource identifier 〉
＜authorization object〉relationship type of authorizing or individuality＜/authorization object 〉
＜authorize the degree of depth〉depth value of authorizing＜/authorize the degree of depth 〉
＜/access rule 〉
At last, the user signs to the resource access rule that defines, and the access control rule after will signing is kept in the local third-party server;
Step 3: implement the relation authentication
If it is the resource of rid that user A has created identifier, and sets this resource and share to the colleague, sharing the degree of depth is 2;
We suppose that user F wants to visit this resource, and then identifying procedure is that implementation procedure is as follows:
1) F sends the application of access resources rid to A, and shows the PKI of oneself;
2) A a string random number of public key encryption and the session key of F, and return to F;
3) F returns the random number that decrypts to A with after the session key that decrypts;
4) A transfers the access rule AR=Sig of this resource correspondence to home server
A(P
A, rid, CollegueOf, 2);
5) A according to access rule to concerning that server submits to the path to set up application, to concern the server transmission: { relationship type and the degree of depth of own PKI, requestor's PKI, requirement }, and encrypt with the PKI that concerns server can be expressed as:
6) concern the requirement searching path of server according to A, find A-C-this paths of F, to using the public key encryption of A behind result's signature again; That is,
7) the A checking concerns whether result and decision that server returns authorize the F access rights.
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| CN103036869A (en) * | 2011-10-08 | 2013-04-10 | 美国博通公司 | Social device service and support via automatic group association |
| CN103220315A (en) * | 2012-01-19 | 2013-07-24 | 北京千橡网景科技发展有限公司 | Method and device for calculating user distances in social network service website |
| CN103248483A (en) * | 2013-03-22 | 2013-08-14 | 张经纶 | Real-name authentication apparatus |
| CN103312757A (en) * | 2012-03-15 | 2013-09-18 | 深圳市腾讯计算机系统有限公司 | Picture sharing method and system |
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| CN104487993A (en) * | 2012-07-03 | 2015-04-01 | 律商联讯风险解决方案佛罗里达公司 | Systems and methods for identity authentication using a social network |
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| US10225258B2 (en) | 2013-11-01 | 2019-03-05 | International Business Machines Corporation | Anonymously sharing resources based on social network user data |
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| CN106534041A (en) * | 2015-09-09 | 2017-03-22 | 腾讯科技（深圳）有限公司 | Verification method, verification platform and client |
| CN106534041B (en) * | 2015-09-09 | 2020-08-07 | 腾讯科技（深圳）有限公司 | Verification method, verification platform and client |
| CN106941475A (en) * | 2016-01-04 | 2017-07-11 | 阿里巴巴集团控股有限公司 | A kind of authentication method and device based on trusting relationship |
| CN108881666A (en) * | 2017-05-11 | 2018-11-23 | 柯尼卡美能达株式会社 | Permission authorizes device and permission authorizes the control program of device |
| US10409969B2 (en) | 2017-05-11 | 2019-09-10 | Konica Minolta, Inc. | Authorization device that grants authority to guest users |
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