Generating multiple secure hashes from a single data buffer

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9425953
APP PUB NO 20150098563A1
SERIAL NO

14050326

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Abstract

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One embodiment provides an apparatus. The apparatus includes a single instruction multiple data (SIMD) hash module configured to apportion at least a first portion of a message of length L to a number (S) of segments, the message including a plurality of sequences of data elements, each sequence including S data elements, a respective data element in each sequence apportioned to a respective segment, each segment including a number N of blocks of data elements and to hash the S segments in parallel, resulting in S segment digests, the S hash digests based, at least in part, on an initial value and to store the S hash digests; a padding module configured to pad a remainder, the remainder corresponding to a second portion of the message, the second portion related to the length L of the message, the number of segments and a block size; and a non-SIMD hash module configured to hash the padded remainder, resulting in an additional hash digest and to store the additional hash digest.

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Patent Owner(s)

Patent OwnerAddress
TAHOE RESEARCH LTDBLANCHARDSTOWN CORPORATE PARK 2 PLAZA 255 SUITE 2A DUBLIN D15 YH6H

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Feghali, Wajdi K Boston, US 157 1454
Gopal, Vinodh Westborough, US 366 2586
Guilford, James D Northborough, US 152 1287
Gulley, Sean M Boston, US 49 500
Wolrich, Gilbert M Framingham, US 178 1942
Yap, Kirk S Framingham, US 110 926

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