Cryptographic processing

Details Cryptographic processing Cryptographic processing

2006-03-15

2011-10-11

Vu, Kim (Department: 2435)

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

C713S164000, C713S193000, C380S037000, C380S277000, C726S005000, C726S009000

Reexamination Certificate

active

08036379

ABSTRACT:
Executable instructions designed to provide faster cryptographic processing, fixed-timing memory access, and dedicated memory usage are implementable on an x86 CPU utilizing XMM registers. The instructions can be utilized to implement cryptographic processing in accordance with the Advanced Encryption Standard (AES). To encrypt, a single instruction performs nonlinear transformation, rotation, and linear transformation. Another single instruction used during encryption performs nonlinear transformation and rotation. New instructions also are implemented to perform decryption. The instructions implemented to perform decryption perform the mathematical inverse functions of their counterparts used for encryption.

REFERENCES:
patent: 5568624 (1996-10-01), Sites et al.
patent: 5845060 (1998-12-01), Vrba et al.
patent: 6141420 (2000-10-01), Vanstone et al.
patent: 6351806 (2002-02-01), Wyland
patent: 6618483 (2003-09-01), Vanstone et al.
patent: 6769063 (2004-07-01), Kanda et al.
patent: 7343389 (2008-03-01), Macy et al.
patent: 7421463 (2008-09-01), Umeno
patent: 7783037 (2010-08-01), Bong
patent: 2004/0028224 (2004-02-01), Liardet et al.
patent: 2004/0184609 (2004-09-01), Umeno
patent: 2005/0084099 (2005-04-01), Montgomery
patent: 2007/0118582 (2007-05-01), Henry et al.
patent: 2008/0285745 (2008-11-01), Teglia et al.
Federal Information Processing Standards Publication 197, Announcing the Advanced Encryption Standard (AES), Nov. 26, 2001, 52 pages.

Affiliated with

Also associated with

Rating

Cryptographic processing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cryptographic processing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cryptographic processing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4275555