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1. (WO2017152056) CONVERTING A BOOLEAN MASKED VALUE TO AN ARITHMETICALLY MASKED VALUE FOR CRYPTOGRAPHIC OPERATIONS

Pub. No.:    WO/2017/152056    International Application No.:    PCT/US2017/020670
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Sat Mar 04 00:59:59 CET 2017
IPC: H04L 9/30
G06F 21/00
G06F 7/00
H04L 9/06
H04L 9/14
G06F 7/58
G09C 1/00
Applicants: CRYPTOGRAPHY RESEARCH, INC.
Inventors: HUTTER, Michael
TUNSTALL, Michael
Title: CONVERTING A BOOLEAN MASKED VALUE TO AN ARITHMETICALLY MASKED VALUE FOR CRYPTOGRAPHIC OPERATIONS
Abstract:
A first input share value, a second input share value, and a third input share value may be received. The first input share value may be converted to a summation or subtraction between an input value and a combination of the second input share value and the third input share value. A random number value may be generated and combined with the second input share value and the third input share value to generate a combined value. Furthermore, a first output share value may be generated based on a combination of the converted first input share value, the combined value, and additional random number values.