Instructions processors, methods, and systems to process secure hash algorithms

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United States of America Patent

PATENT NO 9027104
APP PUB NO 20140189369A1
SERIAL NO

13843141

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Abstract

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A method of an aspect includes receiving an instruction. The instruction indicates a first source of a first packed data including state data elements ai, bi, ei, and fi for a current round (i) of a secure hash algorithm 2 (SHA2) hash algorithm. The instruction indicates a second source of a second packed data. The first packed data has a width in bits that is less than a combined width in bits of eight state data elements ai, bi, ci, di, ei, fi, gi, hi of the SHA2 hash algorithm. The method also includes storing a result in a destination indicated by the instruction in response to the instruction. The result includes updated state data elements ai+, bi+, ei+, and fi+ that have been updated from the corresponding state data elements ai, bi, ei, and fi by at least one round of the SHA2 hash algorithm.

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Patent Owner(s)

  • INTEL CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gopal, Vinodh Westborough, US 366 2586
Guilford, James D Northborough, US 152 1287
Wolrich, Gilbert M Framingham, US 178 1942
Yap, Kirk S Framingham, US 110 926

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