Patent ID: 8732464
Filing Date: 2014-05-20
Classification: H04L

Abstract:
1. A bidirectional entity authentication method with introduction of an online third party, comprising the steps of: 1) transmitting, by an entity B, to an entity A a message 2) transmitting, by the entity A, to a trusted third party TP a message 3) examining, by the trusted third party TP, the entities A and B for legality against the identities I 4) returning, by the trusted third party TP, to the entity A a message 5) transmitting, by the entity A, to the entity B a message 6) verifying, by the entity B, upon reception of the message 7) transmitting, by the entity B, a message 8) verifying, by the entity A, upon reception of the message wherein the step 6) comprises: 6.1) verifying a signature of the trusted third party TP in TokenTA or TokenTA 6.2) obtaining the verification result Res 6.3) obtaining a public key of the entity A, verifying a signature of the entity A in TokenAB, examining an identifier of the entity B and an entity identifier (B) in the signature of the entity A comprised in TokenAB for consistency, checking the random number R