公开(公告)号：US20140095883A1

公开(公告)日：2014-04-03

申请号：US13630109

申请日：2012-09-28

申请人： Sergey Kirillov ,  Jiangtao Li ,  Marc A. Valle

发明人： Sergey Kirillov ,  Jiangtao Li ,  Marc A. Valle

IPC分类号： H04L9/32

CPC分类号： H04L9/3281 ,  H04L9/003 ,  H04L9/0891 ,  H04L9/3247 ,  H04L2209/046

摘要： Various embodiments are generally directed to hardening the performance of calculations of a digital signature system for authenticating computing devices against side-channel attacks. An apparatus comprises a processor circuit and an interface operative to communicatively couple the processor circuit to a network; a storage communicatively coupled to the processor circuit and arranged to store instructions operative on the processor circuit to digitally sign a message to create a first signature using a modular arithmetic operation arranged to compensate for a value of a variable greater than a modulus without use of a branching instruction; and transmit the first signature to a verifying server via the network. Other embodiments are described and claimed herein.

摘要翻译： 各种实施例通常旨在加强数字签名系统的计算性能，以便针对侧信道攻击认证计算设备。 一种装置包括处理器电路和可操作地将处理器电路通信地耦合到网络的接口; 存储器，其通信地耦合到所述处理器电路并且被布置为存储在所述处理器电路上操作的指令以对信息进行数字签名以使用被设置为补偿大于模数的变量的值的模算术运算来创建第一签名而不使用 分支指令 并经由网络将第一签名发送给验证服务器。 在此描述和要求保护的其它实施例。