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:
Jan. 28, 2020
Filed:
Sep. 04, 2017
Cisco Technology, Inc., San Jose, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
In one embodiment, a first apparatus includes a processor and an interface, wherein the interface is operative to receive a request from a second apparatus to commence a keyed-hash message authentication code (HMAC) computation, the processor is operative to perform a first computation computing a first part of the HMAC computation using a secret key K as input yielding a first value, the interface is operative to send the first value to the second apparatus, the interface is operative to receive a second value from the second apparatus, the second value resulting from the second apparatus processing the first value with at least part of a message M, the processor is operative to perform a second computation based on the second value and the secret key K yielding an HMAC value, and the interface is operative to send the HMAC value to the second apparatus.