公开(公告)号：US09571289B2

公开(公告)日：2017-02-14

申请号：US14441998

申请日：2013-11-11

Applicant: CRYPTOGRAPHY RESEARCH INC.

Inventor： Joshua M Jaffe

IPC: G06F21/00 ,  H04L9/32 ,  H04L9/00 ,  H04L9/14

CPC classification number: H04L9/3247 ,  H04L9/004 ,  H04L9/14 ,  H04L9/3252 ,  H04L2209/24 ,  H04L2209/72

Abstract: Methods and devices disclosed herein use techniques to resist glitch attacks when computing discrete-log based signatures. The methods and systems described herein replace the random nonce in conventional signature systems with a pseudorandom nonce derived in a deterministic way from some internal state information, such as a secret key or a counter, such that the nonce is not repeated. The methods and systems described herein may also use tests to verify that a glitch has not occurred or been introduced.

Abstract translation: 本文公开的方法和装置使用技术来抵抗在基于离散日志的签名时的毛刺攻击。 本文描述的方法和系统用诸如秘密密钥或计数器的某些内部状态信息以确定性方式导出的伪随机数替换常规签名系统中的随机随机数，从而不重复随机数。 本文描述的方法和系统还可以使用测试来验证毛刺没有发生或未被引入。