Patent · US Active

Memory optimization for nested hash operations

US11539509B2 · kind B2 · utility

0Cited by

28References

20Claims

0Family size

Assignee

Cryptography Research, Inc. · US

Inventors

Michael Hutter · Walnut Creek, US
Matthew Pond Baker · San Francisco, US

Key dates

Filing date	Jan 27, 2021
Grant date	Dec 27, 2022
Priority date	—
Expiry date	Feb 20, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG09C1/00
WIPO fieldControl
WIPO sectorInstruments

Abstract

Disclosed is a method and a system to execute the method to perform a first hashing operation to compute a first hash value, store the first hash value in a plurality of output registers, store a second message in a plurality of input registers, perform a first iteration of a second hashing operation, with an input to the second hashing operation including the second message and the first hash value, determine that a first portion of the second message, stored in a first register of the plurality of input registers, has been processed in course of the second hashing operation, and move a first portion of the first hash value stored in a first register of the plurality of output registers to the first register of the plurality of input registers.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.