Patent ID: 7490237
Filing Date: 2009-02-10
Classification: H04L

Abstract:
1. A process for verification of a client authentication request by a server which can decrease problems associated with sham authentication requests, the process comprising: receiving, in the server, a client authentication request including client-specific data; comparing the client specific data to data stored in a first cache memory coupled to the server to determine whether the client specific data meet a first threshold of validity; if the client specific data meet the first threshold of validity, proceeding with the authentication process; and if the client specific data do not meet the first threshold of validity, then storing in a second cache memory a portion of the client specific data and an indication that the client specific data do not correspond to a valid client, wherein the portion of the client specific data and the indication stored in the second cache memory identify a client name associated with the client authentication request and associate the client name with a negative indication of validity regardless of whether the client specific data includes valid proof of knowledge of privileged data, and then terminating the verification process.