US 2007/0178886 A1 · Authentication Method And Related Method For Transmitting Information

Abstract

An authentication method and a method for transmitting authentication information, and the method for transmitting authentication information includes: an MS and a network agree in advance one or more agreed operations to be performed when the network determines that the SQNMS is an agreed value; the MS generating an authentication resynchronization token (AUTS) by using the agreed value, sending a resynchronization request containing the AUTS to the network; upon receiving the resynchronization request and determining that the SQNMS of the AUTS is the agreed value, the network performing the one or more agreed operations. The method of transmitting authentication information from the MS to the network conveniently implement the information transmitting between the MS and the network and guarantee the network security without increasing and changing the existing signaling resources and authentication parameters.

Claims32

Dependent claims

A method for transmitting information, applied in 3G network or more advanced network for a mobile station (MS) to transmit information to a network, comprising:

generating, by the MS, an authentication resynchronization token (AUTS) by using an agreed value substituting for a sequence number in MS (SQNMS);
sending, by the MS, a resynchronization request containing the AUTS to the network;
upon receiving the resynchronization request, performing, by the network, one or more agreed operations corresponding to the agreed value if determining that the SQNMS of the AUTS is the agreed value.

An authentication method, applied in communication network for authentication between a mobile station (MS) and a network, comprising:

generating, by the network, a random number, generating an authentication vector according to the random number, an authentication key corresponding to the MS and a sequence number, and sending the authentication vector to the MS;
verifying, by the MS, the consistency of the authentication vector according to an authentication key stored in the MS, and determining according to a sequence number in MS whether the sequence number from the network is acceptable, if the consistency verification of the authentication vector succeeds and the sequence number from the network is acceptable, determining that the authentication of the network succeeds, generating a resynchronization token by using an agreed value substituting for the sequence number in MS, and sending to the network a resynchronization request containing the resynchronization token;
upon receiving the resynchronization request, performing, by the network, one or more agreed operations if determining that the sequence number of the resynchronization token is the agreed value.

An authentication method, applied for authentication between a first unit and a second unit which communicate with each other;

wherein the first unit stores a first authentication key, a first synchronization key and a first sequence number;
the second unit stores a second authentication key, a second synchronization key and a second sequence number;
the method comprising:
generating, by the second unit, a random number, generating a message authentication code according to the random number, the second authentication key and the second sequence number, and sending the random number, the second sequence number and the message authentication code to the first unit;
verifying, by the first unit, the consistency of the message authentication code according to the first authentication key, the random number and the second sequence number, and determining according to the first sequence number whether the second sequence number is acceptable;
if the consistency verification of the message authentication code succeeds and the second sequence number is acceptable, determining that the authentication of the second unit succeeds, generating a resynchronization authentication code by using an agreed value substituting for the first sequence number, and the first synchronization key, sending to the second unit a resynchronization request containing the resynchronization authentication code and the agreed value;
upon receiving the resynchronization request, performing, by the second unit, one or more agreed operations if determining that the first sequence number in the resynchronization authentication code is the agreed value.

4 more elements

Dependencies are inferred from the claim text.

Authentication Method And Related Method For Transmitting Information

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Authentication Method And Related Method For Transmitting Information

Life of this patent

Abstract

Claims32