CN100388850C - Method of bidirectional authentication during subscriber switch in digital cellular mobile communication system - Google Patents
Method of bidirectional authentication during subscriber switch in digital cellular mobile communication system Download PDFInfo
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- CN100388850C CN100388850C CNB2003101040493A CN200310104049A CN100388850C CN 100388850 C CN100388850 C CN 100388850C CN B2003101040493 A CNB2003101040493 A CN B2003101040493A CN 200310104049 A CN200310104049 A CN 200310104049A CN 100388850 C CN100388850 C CN 100388850C
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Abstract
The present invention discloses a method of bidirectional authentication during subscriber switch-in digital cellular mobile communication systems, which comprises a normal switching complete bidirection identification method and an emergency switching simple bidirection identification method in different sector of same base station and different base station of same dynamic field and normal switching complete bidirection identification method and an emergency switching simple bidirection identification method in different base stations of the same dynamic scope. The present invention has the advantages that owing to the bidirection identification between a user and a mobile user when the user exchange networks, the present invention realizes the secure communication in user exchange and effectively assures the benefits of the users and network operators.
Description
Technical field
The present invention relates in digital cellular mobile communication systems, a kind of of use moves when switching automatically the method that user and base station identity are carried out two-way discriminating the user.
Background technology
In the second generation and third generation digital cellular mobile communication systems, the authentication scheme that adopts during registration generally all is unidirectional, promptly a network enabled system does not support the discriminating of user to network system to user's discriminating, and the user may be subjected to palming off the attack of base station like this.And present digital cellular mobile communication systems all do not provide the switching authentication scheme when the user is switched.Therefore, when switching, the user is still existed bigger security breaches to network, common interest is protected effectively.
Summary of the invention
The objective of the invention is to: when solving digital cellular mobile communication systems and switching between user-network access registration and base station, the two-way discriminating problem between user and the network can be provided when providing a kind of user to switch by the bidirectional authentication method of user and secure communication of network.
The objective of the invention is by setting up following switching condition and implementing that following discrimination method realizes:
The condition of implementing to switch is: Radio Link is set up in the sector by base stations control between user and base station, establishes wired link by aaa server between the base station; Used session key SK is differentiated in communication, switches authentication arithmetic NT-A3, TN-A3 and has been stored in user side and base station end, and NT-A3 represents the authentication arithmetic of network to portable terminal, and TN-A3 represents the authentication arithmetic of portable terminal to network.
The bidirectional authentication method that digital cellular mobile communication systems user is switched includes: (A) the complete bidirectional authentication method of normal switching takes place when mobile in the mobile subscriber between different sectors in the administration of same base station; And the simple bidirectional authentication method that (B) promptly switches; (C) mobile subscriber occurs in the same dynamic domain the normal complete bidirectional authentication method that switches takes place when mobile between different base station; And the simple bidirectional authentication method that (D) promptly switches; Wherein:
(A) between the different sectors of mobile subscriber in the administration of same base station when mobile, the complete bidirectional authentication method of normal switching taking place, carries out as follows:
The user sends the two-way discriminating handoff request that enters new sector by old sector to the base station, and request message is encrypted, and the user produces one and differentiates random number RA NDH ' simultaneously, and it together is sent to the base station together with message;
The base station sends two-way discriminating handoff response message by old sector to the mobile subscriber, and will utilize the user to differentiate random number RA NDH, session key SK, the user that network calculates the authentication arithmetic NT-A3 of portable terminal differentiates and replys RESH, differentiate that together with the network that network produces random number RA NDH ' is sent to the mobile subscriber, the mobile subscriber differentiates the user who receives and replys RESH, differentiate random number RA NDH with own by the user, session key SK, the user expectation that network calculates the authentication arithmetic NT-A3 of portable terminal differentiates that replying XRESH compares, finish discriminating to new sector, if unanimity then this sector be true, otherwise be vacation;
The new handoff sectors of mobile subscriber is passed to authentication parameters such as the aerial working key WK of mobile subscriber's data, cryptographic algorithm in the base station;
The mobile subscriber will differentiate random number RA NDH ' with network, SK, the network that NT-A3 calculates differentiates that replying RESH ' reports together with handover success, be sent to the base station by new sector, after receive the base station itself and the expectation of the network that oneself calculates are differentiated that replying XRESH ' compares, finish discriminating to the mobile subscriber, if unanimity then this user be very, can open the legitimate correspondence of mobile subscriber by new sector.
(B) the urgent simple bidirectional authentication method that switches between different sectors when mobile, takes place in the mobile subscriber in same base station, is undertaken by following step:
The mobile subscriber directly sends urgent handover report to the base station by new sector, user's discriminating of being calculated by the base station together with own registration of preserving the time is simultaneously replied RESH and is sent to the base station, after received the base station, the user expectation discriminating that the user calculates during with own registration of preserving with RESH was replied XRESH and is compared;
If RESH is consistent with the XRESH comparative result, then new sector will be passed under the encryption parameters such as user's aerial datamation key WK and cryptographic algorithm in the base station, and the network discriminating that the user calculates during the registration that will preserve is simultaneously replied RESH ' and sent to the mobile subscriber;
After the mobile subscriber receives network differentiated that the network expectation discriminating that calculates the base station when replying RESH ' with own registration of preserving replys XRESH ' and compare, if the result is consistent, think that the base station is a legitimate base station, can open the legitimate correspondence of mobile subscriber by new sector.
(C) the normal complete bidirectional authentication method that switches between different base station when mobile, takes place in the mobile subscriber in same dynamic domain, is undertaken by following step:
The mobile subscriber initiates handoff request between the base station by old sector to old base station, simultaneously the user is differentiated that random number RA NDH together sends to old base station;
New base station is sent to the random number RA NDH that receives in old base station, authentication is initiated to mobile subscriber's registration base station in new base station, authentication is carried out at server A AA place, home to return in the registration base station, and authentication success is then registered the base station encryption parameters such as WK, SK, cryptographic algorithm are issued to new base station;
New base station sends normal handoff response by new sector to the mobile subscriber, and the user that will utilize the user to differentiate that random number RA NDH, SK and NT-A3 calculate simultaneously differentiates and replys RESH, and the random number RA NDH ' that this base station produces sends to the mobile subscriber together:
The mobile subscriber differentiates the user who receives and replys RESH and oneself use RANDH, the user expectation that SK and NT-A3 calculate differentiates that replying RESH compares, finish discriminating to new sector if the result is consistent, the mobile subscriber will normally be switched and be finished report, reach and use RANDH ', SK, the network that TN-A3 calculates differentiates that replying RESH ' sends to new base station by new sector, after receive new base station it being replied XRESH ' with the network expectation discriminating that oneself calculates compares, finish discriminating to the mobile subscriber, if unanimity then this user is true, can open the legitimate correspondence of mobile subscriber by new sector.
(D) the urgent simple bidirectional authentication method that switches between different base station when mobile, takes place in the mobile subscriber in same dynamic domain, is undertaken by following step:
The mobile subscriber sends urgent handoff request by new base station to the registration base station, and the other side differentiates that replying RESH also sends to and register the base station during simultaneously together with own registration of preserving;
Registration is after the base station receives, user expectation differentiates that replying XRESH compares during with own registration of preserving with RESH, and unanimity then comprises old base station the encryption parameter of WK, SK, cryptographic algorithm, and registers random number RA NDH as a result, and RANDH ' passes to new base station;
New sector is passed to encryption parameter in new base station;
New base station sends urgent handover acknowledge by new sector to the mobile subscriber, and the user network discriminating is replied RESH ' and passed to the mobile subscriber during registration that also will preserve simultaneously;
The mobile subscriber with the RESH ' that receives during with own registration of preserving network expectation discriminating reply XRESH ' and compare, unanimity then allows to use the new sector communication of base station as a result.
The invention has the advantages that: owing to solved in the digital cellular mobile communication systems, the user is two-way discriminating and the licensing issue between network and the user when switching, realize the secure communication the when user is switched, guaranteed user and network operator both sides' interests effectively.
Description of drawings
Two-way discrimination process schematic diagram when Fig. 1 is normal the switching in the same base station
Two-way discrimination process schematic diagram when Fig. 2 is urgent the switching in the same base station
Complete two-way discrimination process schematic diagram between different base station in same dynamic domain when Fig. 3 is normal the switching
Simple two-way discrimination process schematic diagram between different base station in same dynamic domain when Fig. 4 is urgent the switching
Fig. 5 is mobile communication system network figure
Embodiment
Bidirectional authentication method when digital cellular mobile communication systems user is switched, be to realize by the execution of differentiating software, this discriminating software is stored in the two ends of communicating pair respectively, concrete physical storage locations is: mobile subscriber such as mobile phone are stored in the SIM card, and the discriminating software of base station end is stored in the base station controller.Any one party can be initiated two-way discriminating request among the both sides, and the two-way discrimination process during switching is fast automatic finishing between mobile phone and base station controller and aaa server.
If the user takes machine by the hand when one of same base station work sector moves to another sector, switch dual of the present invention in the SIM cards of mobile phones is to differentiating that software and the two-way discriminating software of the present invention in the base station controller will carry out switching evaluator of the present invention fast, finishes the switching discrimination process automatically and do not influence proper communication.
Illustrate that below in conjunction with Fig. 1, Fig. 2 the user takes machine by the hand when one of same base station work sector moves to another sector, the two-way discriminating secure communication process of switching between mobile subscriber's mobile phone and base station.
When Fig. 1 has provided normal switching in same base station, when mobile phone user moves to another sector from a work sector, the two-way discriminating secure communication process that takes place between the machine of taking by the hand and base station:
Mark among Fig. 1
Expression: mobile subscriber's mobile subscriber's mobile phone of definitely saying so, send the normal handoff request of two-way discriminating that enters new sector to the base station by old sector, request message is encrypted, and mobile subscriber's mobile phone produces one and differentiates random number RA NDH ' simultaneously, and it together is sent to the base station together with message;
Mark among Fig. 1
Expression: the base station sends two-way discriminating handoff response message by old sector to mobile subscriber's mobile phone, and will utilize the user to differentiate random number RA NDH, session key SK, the user that network calculates the authentication arithmetic NT-A3 of portable terminal differentiates and replys RESH, differentiate that together with the network that network produces random number RA NDH ' is sent to mobile subscriber's mobile phone, mobile subscriber's mobile phone is differentiated the user who receives and is replied RESH, differentiate random number RA NDH with own by the user, session key SK, the user expectation that network calculates the authentication arithmetic NT-A3 of portable terminal differentiates that replying XRESH compares, finish discriminating to new sector, if comparative result unanimity then this sector is true, otherwise is false;
Mark among Fig. 1
Expression:: the new handoff sectors of mobile subscriber's mobile phone is passed to authentication parameters such as the aerial working key WK of the data of mobile subscriber's mobile phone, cryptographic algorithm in the base station;
Mark among Fig. 1
Expression: mobile subscriber's mobile phone will be differentiated random number RA NDH ' with network, SK, the network that NT-A3 calculates differentiates that replying RESH ' reports together with handover success, be sent to the base station by new sector, after receive the base station itself and the expectation of the network that oneself calculates are differentiated that replying XRESH ' compares, finish discriminating to mobile subscriber's mobile phone, if the comparative result unanimity then this user be very, can open the legitimate correspondence of mobile subscriber by new sector.
When Fig. 2 has provided urgent switching in same base station, when mobile phone user moves to another sector from a work sector, the simple two-way discriminating secure communication process that takes place between the machine of taking by the hand and base station:
Mark among Fig. 2
Expression: mobile subscriber's mobile phone directly sends urgent handover report to the base station by new sector, user's discriminating of being calculated by the base station together with own registration of preserving the time is simultaneously replied RESH and is sent to the base station, after received the base station, the user expectation discriminating that the user calculates during with own registration of preserving with RESH was replied XRESH and is compared;
Mark among Fig. 2
Expression: if RESH is consistent with the XRESH comparative result, then new sector will be passed under the encryption parameters such as the aerial datamation key WK of mobile subscriber's mobile phone and cryptographic algorithm in the base station, and the network that the user calculates during the registration that will preserve simultaneously differentiates that replying RESH ' sends to mobile subscriber's mobile phone;
Mark among Fig. 2
Expression: after mobile subscriber's mobile phone is received network differentiated that the network expectation discriminating that calculates the base station when replying RESH ' with own registration of preserving replys XRESH ' and compare, think that the base station is a legitimate base station, can open the legitimate correspondence of mobile subscriber by new sector if the result is consistent.
Fig. 3 has provided the mobile subscriber and between different base station when mobile, the normal two-way discriminating secure communication process of switching has taken place between mobile subscriber's mobile phone and base station in same dynamic domain:
Mark among Fig. 3
Expression: mobile subscriber's mobile phone is initiated handoff request between the base station by old sector to old base station, simultaneously the user is differentiated that random number RA NDH together sends to old base station:
Mark among Fig. 3
Expression: new base station is sent to the random number RA NDH that receives in old base station, authentication is initiated to the registration base station of mobile subscriber's mobile phone in new base station, authentication is carried out at server A AA place, home to return in the registration base station, and authentication success is then registered the base station encryption parameters such as WK, SK, cryptographic algorithm are issued to new base station;
Mark among Fig. 3
Expression: new base station sends normal handoff response by new sector to mobile subscriber's mobile phone, the user that will utilize the user to differentiate that random number RA NDH, SK and NT-A3 calculate simultaneously differentiates and replys RESH, and the random number RA NDH ' that this base station produces sends to mobile subscriber's mobile phone together;
Mark among Fig. 3
Expression: mobile subscriber's mobile phone is differentiated the user who receives and is replied RESH and oneself use RANDH, the user expectation that SK and NT-A3 calculate differentiates that replying RESH compares, finish discriminating to new sector if the result is consistent, mobile subscriber's mobile phone will normally switch finishes report, reach and use RANDH ', SK, the network that TN-A3 calculates differentiates that replying RESH ' sends to new base station by new sector, after receive new base station it being replied XRESH ' with the network expectation discriminating that oneself calculates compares, finish discriminating to mobile subscriber's mobile phone, if comparative result unanimity then this user is true, can open the legitimate correspondence of mobile subscriber by new sector.
Fig. 4 has provided the mobile subscriber and between different base station when mobile, the urgent two-way discriminating secure communication process of switching has taken place between mobile subscriber's mobile phone and base station in same dynamic domain:
Mark among Fig. 4
Expression: mobile subscriber's mobile phone sends urgent handoff request by new base station to the registration base station, and the other side differentiates that replying RESH also sends to and register the base station during simultaneously together with own registration of preserving;
Mark among Fig. 4
Expression: after receive the registration base station, the user expectation discriminating is replied XRESH and is compared during with own registration of preserving with RESH, if the result is consistent, then old base station is comprised the encryption parameter of WK, SK, cryptographic algorithm, and registration random number RA NDH, RANDH ' passes to new base station;
Mark among Fig. 4
Expression: new base station sends urgent handover acknowledge by new sector to mobile subscriber's mobile phone, and the user network discriminating is replied RESH ' and passed to mobile subscriber's mobile phone during the registration that also will preserve simultaneously;
Mark among Fig. 4
Expression: mobile subscriber's mobile phone with the RESH ' that receives during with own registration of preserving network expectation discriminating reply XRESH ' and compare, unanimity then allows to use the new sector communication of base station as a result.
Fig. 5 has provided mobile communication system network figure, and this figure acceptance of the bid shows the situation that system has three base stations, and it is mobile between different sectors in same base station to indicate mobile subscriber's mobile phone, and the communication scheme under situation of movement between different base station.
Claims (1)
1. the bidirectional authentication method when the digital cellular mobile communication systems user is switched, include: normal complete bidirectional authentication method that switches and the urgent simple bidirectional authentication method that switches take place when mobile in the mobile subscriber between different sectors in the administration of same base station, and the mobile subscriber occurs in the same dynamic domain the simple bidirectional authentication method that normal complete bidirectional authentication method that switches and urgent switching take place when mobile between different base station; Wherein:
(A) the complete bidirectional authentication method of normal switching taking place when mobile, carries out as follows between the different sectors of mobile subscriber in the administration of same base station:
The user sends the two-way discriminating handoff request that enters new sector by old sector to the base station, and request message is encrypted, and the user produces one and differentiates random number RA NDH simultaneously, and it together is sent to the base station together with message;
The base station sends two-way discriminating handoff response message by former sector to the mobile subscriber, and will utilize the user to differentiate random number RA NDH, session key SK, the user that network calculates the authentication arithmetic NT-A3 of portable terminal differentiates and replys RESH, differentiate that together with the network that network produces random number RA NDH ' is sent to the mobile subscriber, the mobile subscriber differentiates the user who receives and replys RESH, differentiate random number RA NDH with own by the user, session key SK, the user expectation that network calculates the authentication arithmetic NT-A3 of portable terminal differentiates that replying XRESH compares, can finish discriminating to new sector, if unanimity then this sector be true, otherwise be vacation;
The base station is with the aerial working key WK of mobile subscriber's data, and encryption parameters such as cryptographic algorithm are passed to the new handoff sectors of mobile subscriber;
The mobile subscriber will differentiate random number RA NDH ' with network, SK, the network that NT-A3 calculates differentiates that replying RESH ' reports together with handover success, be sent to the base station by new sector, after receive the base station itself and the expectation of the network that oneself calculates are differentiated that replying XRESH ' compares, can finish discriminating to the mobile subscriber, if unanimity then this user be very, can open the legitimate correspondence of mobile subscriber by new sector;
(B) the urgent simple bidirectional authentication method that switches between different sectors when mobile, takes place in the mobile subscriber in same base station, is undertaken by following step:
The mobile subscriber directly sends urgent handover report to the base station by new sector, user's discriminating of being calculated by the base station together with own registration of preserving the time is simultaneously replied RESH and is sent to the base station, after received the base station, the user expectation discriminating that the user calculates during with own registration of preserving with RESH was replied XRESH and is compared;
If RESH is consistent with XRESH, then new sector will be passed under the encryption parameters such as user's aerial datamation key WK and cryptographic algorithm in the base station, and the network that the user calculates during the registration that will preserve simultaneously differentiates that replying RESH ' sends to the mobile subscriber;
After the mobile subscriber receives network differentiated that the network expectation discriminating that calculates the base station when replying RESH ' with own registration of preserving replys XRESH ' and compare, if consistently think that the base station is a legitimate base station, can open the legitimate correspondence of mobile subscriber by new sector;
(C) the normal complete bidirectional authentication method that switches takes place when mobile in the mobile subscriber between different base station in same dynamic domain, is undertaken by following step:
The mobile subscriber initiates handoff request between the base station by old sector to old base station, simultaneously the user is differentiated that random number RA NDH together sends to old base station;
New base station is sent to the random number RA NDH that receives in old base station, authentication is initiated to mobile subscriber's registration base station in new base station, authentication is carried out at server A AA place, home to return in the registration base station, and authentication success is then registered the base station encryption parameters such as WK, SK, cryptographic algorithm are issued to new base station;
New base station sends normal handoff response by new sector to the mobile subscriber, and the user that will utilize the user to differentiate that random number RA NDH, SK and NT-A3 calculate simultaneously differentiates and replys RESH, and the random number RA NDH ' that this base station produces sends to the mobile subscriber together;
The mobile subscriber differentiates the user who receives and replys RESH and oneself use RANDH, the user expectation that SK and NT-A3 calculate differentiates that replying RESH compares, then finish discriminating as unanimity to new sector, the mobile subscriber will normally be switched and be finished report, reach with network and differentiate random number RA NDH ', session key SK, the network that portable terminal is calculated the authentication arithmetic TN-A3 of network differentiates that replying RESH ' sends to new base station by new sector, after receive new base station it being replied XRESH ' with the network expectation discriminating that oneself calculates compares, can finish discriminating to the mobile subscriber, if unanimity then this user is true, can open the legitimate correspondence of mobile subscriber by new sector;
(D) the urgent simple bidirectional authentication method that switches between different base station when mobile, takes place in the mobile subscriber in same dynamic domain, is undertaken by following step:
The mobile subscriber sends urgent handoff request by new base station to the registration base station, and the other side differentiates that replying RESH also sends to and register the base station during simultaneously together with own registration of preserving;
Registration is after the base station receives, user expectation differentiates that replying XRESH compares during with own registration of preserving with RESH, if consistent, then old base station comprised the encryption parameter of WK, SK, cryptographic algorithm, and register random number RA NDH that RANDH ' passes to new base station;
New base station sends urgent handover acknowledge by new sector to the mobile subscriber, and the user network discriminating is replied RESH ' and passed to the mobile subscriber during registration that also will preserve simultaneously;
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Families Citing this family (11)
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WO2007033548A1 (en) * | 2005-09-19 | 2007-03-29 | Huawei Technologies Co., Ltd. | A method and device for obtaining the security association information during the mobile terminal handoff procedure |
CN102355468B (en) * | 2006-02-28 | 2014-08-13 | 华为技术有限公司 | Safe communication method |
CN101031141B (en) * | 2006-02-28 | 2011-11-09 | 华为技术有限公司 | Safety telecommunication method |
RU2416882C2 (en) * | 2006-10-20 | 2011-04-20 | Нокиа Корпорейшн | Generating security keys in next-generation mobile communication networks |
CN101286844B (en) | 2008-05-29 | 2010-05-12 | 西安西电捷通无线网络通信有限公司 | Entity bidirectional identification method supporting fast switching |
US8131296B2 (en) | 2008-08-21 | 2012-03-06 | Industrial Technology Research Institute | Method and system for handover authentication |
CN103312499B (en) | 2012-03-12 | 2018-07-03 | 西安西电捷通无线网络通信股份有限公司 | A kind of identity identifying method and system |
CN103312670A (en) | 2012-03-12 | 2013-09-18 | 西安西电捷通无线网络通信股份有限公司 | Authentication method and system |
CN106131841A (en) * | 2015-05-15 | 2016-11-16 | 中兴通讯股份有限公司 | A kind of access authentication method, equipment and system |
CN106304061B (en) * | 2015-05-26 | 2020-01-10 | 成都鼎桥通信技术有限公司 | User authentication method under fault weakening state |
WO2017084043A1 (en) * | 2015-11-18 | 2017-05-26 | Alcatel-Lucent Shanghai Bell Co., Ltd. | Handover between e-utran and wlan |
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