FIELD: information technology.
SUBSTANCE: method for authentication involves the following steps in which: server generates initiating message using random number of initiating message and transmits to terminal device the initiating message which is generated using random number of initiating message; the terminal device can extract random number of initiating message and when the terminal device determines that random number of initiating message is allowable it generates digest using random number of initiating message and authenticates the initiating message generated using random number of initiating message; if authentication is successful the terminal device initiates session request to server specified by initiating message which request contains session identifier.
EFFECT: prevention of server attacks with message packets replication and higher system security.
15 cl, 17 dwg
