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Bidirectional entity authentication method based on the credible third party

  • US 8,510,565 B2
  • Filed: 03/04/2009
  • Issued: 08/13/2013
  • Est. Priority Date: 03/06/2008
  • Status: Active Grant
First Claim
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1. A utility bidirectional entity authentication method based on a trusted third party, comprising:

  • sending, by an entity B, a message 1 comprising an authentication parameter of the entity B to an entity A;

    sending, by the entity A, a message 2 to a trusted third party TP, the message 2 comprising the authentication parameter of the entity B and an authentication parameter of the entity A;

    receiving, by the entity A, a message 3 sent from the trusted third party TP, a checking result is comprised in the message 3 which is obtained by checking whether the entities A and B are legal by the trusted third party TP on a basis of the message 2; and

    verifying the message 3, by the entity A, so as to obtain a verification result of the entity B, sending a message 4 to the entity B, by the entity A, for causing the entity B to perform verification based on the message 4 and obtaining a verification result of the entity A.

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