Patent ID: 9621525
Date: 2017-04-11
CPC Classifications: H04L

Claim:
1. A method operational in an electronic digital signature generation device for obtaining a digital signature, comprising: controlling, by a processing circuit, a semi-deterministic nonce generation component of the electronic digital signature generation device to obtain a semi-deterministic nonce that has a partial amount of determinism between a random nonce and a deterministic nonce and is more deterministic than a nonce obtained randomly or pseudorandomly from within a full range of values associated with a digital signature generation protocol used by the digital signature generation device to obtain digital signatures; controlling, by the processing circuit, a digital signature generation component of the electronic digital signature generation device to obtain a digital signature based in part on the semi-deterministic nonce; and controlling, by the processing circuit, a message signing component of the digital signature generation device to sign a message using the digital signature generated based, in part, on the semi-deterministic nonce.