METHOD AND SYSTEM FOR TWO-WAY AUTHENTICATION OF SUBJECTS Russian patent published in 2012 - IPC H04L9/32 

FIELD: information technology.

SUBSTANCE: method involves the following steps on which: a first subject sends a first message; a second subject sends a second message to a trustworthy third party after receiving said first message; said trustworthy third party returns a third message after receiving the second message; after receiving the third message and verification of the signature of the trustworthy third party, said second subject obtains the public key of the first subject to verify the signature of the first subject in the first message and, if verification is successful, sends a fourth message; said first subject receives said fourth message and verifies the signature of the trustworthy third party, and the obtains the public key of the second subject to verify the signature of the second subject in the fourth message.

EFFECT: preventing problems during authentication caused by failure to access a network before successful authentication.

10 cl, 5 dwg