The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 05, 2017
Filed:
Jun. 05, 2013
Nokia Technologies Oy, Espoo, FI;
Kari Kostiainen, Helsinki, FI;
Nadarajah Asokan, Espoo, FI;
Nokia Technologies Oy, Espoo, FI;
Abstract
A process is provided for communication security certificate revocation status verification by using the client device as a proxy in online status verification protocol. The process utilizes a nonce of an authentication protocol request message (nonce_A) to derive the nonce for the revocation status protocol request (nonce_S) to reduce the number of message exchanges needed between the client and the verifier devices, and a mechanism to send the nonce (nonce_S) prior to actual authentication protocol execution to ease the connectivity requirement of client device from on-demand connectivity to periodic connectivity. Similar functionality is achieved using a random seed established between the verifier and client. The verifier picks a seed for random number generation and sends that seed to the client. The client derives the nonce_S from the seed before status protocol execution, and the verifier derives the nonce_S from the seed before proxied status response verification.