公开(公告)号：US10789358B2

公开(公告)日：2020-09-29

申请号：US16061409

申请日：2016-10-12

Applicant: CRYPTOGRAPHY RESEARCH, INC.

Inventor： Sami Saab ,  Elke De Mulder ,  Pankaj Rohatgi ,  Craig E Hampel ,  Jeremy Cooper ,  Winthrop Wu

IPC: G06F21/55 ,  G06F21/62

Abstract: Embodiments herein facilitate resisting side channel attacks through various implementations and combinations of implementations. In embodiments, this is accomplished by preventing sensitive data from consecutively following other data through potentially vulnerable resources which otherwise may cause data to leak. Where such vulnerabilities to attacks are known, suspected, or as a proactive precaution, a cleaner can be used to inhibit the sensitive data from passing through the vulnerable areas consecutively and thus inhibit the leakage. Embodiments also envision utilizing certain types of circuits to assist in preventing leakage. By using such circuits one can reduce or even potentially eliminate the requirement for cleaners as mentioned previously.