METHOD FOR PROTECTED REMOTE ACCESS TO INFORMATION RESOURCES Russian patent published in 2014 - IPC H04L9/32 

FIELD: information technology.

SUBSTANCE: result is achieved due to preliminary check of a dynamic variable depending on accurate time and repeatability of identifiers of a client and a session without any preliminary use of convolution (hashing) functions to them with the suppression of incorrect requests for authentication in case of an error occurrence. After that, the convolution function is used, which provides, in case of no errors, authenticity of earlier checked authentication data, as well as a check of authenticity of an access subject based on identification data of a user. Reduction of computational complexity of a checking algorithm of an authentication sequence is determined by the fact that at reception of multiple incorrect requests for authentication, these requests are suppressed before the convolution (hashing) function is used, and therefore, considerable reduction of load on a system (device) takes place, which implements a checking algorithm of the authentication sequence at reception of incorrect requests for authentication.

EFFECT: reduction of computational complexity of a checking algorithm of the authentication sequence at reception of multiple incorrect requests for authentication, which in its turn improves resistance to attacks like service denial at processing of multiple and, as a rule, incorrect requests for the access provision.

2 dwg, 1 tbl