Invention Grant
US07974408B2 Scrambling of a calculation performed according to an RSA-CRT algorithm
有权
根据RSA-CRT算法进行计算的加扰
- Patent Title: Scrambling of a calculation performed according to an RSA-CRT algorithm
- Patent Title (中): 根据RSA-CRT算法进行计算的加扰
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Application No.: US11846649Application Date: 2007-08-29
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Publication No.: US07974408B2Publication Date: 2011-07-05
- Inventor: Pierre-Yvan Liardet , Yannick Teglia
- Applicant: Pierre-Yvan Liardet , Yannick Teglia
- Applicant Address: FR Montrouge
- Assignee: STMicroelectronics S.A.
- Current Assignee: STMicroelectronics S.A.
- Current Assignee Address: FR Montrouge
- Agency: Wolf, Greenfield & Sacks, P.C.
- Agent Lisa K. Jorgenson; James H. Morris
- Priority: FR0653523 20060831
- Main IPC: H04K1/00
- IPC: H04K1/00 ; H04L9/00 ; H04L9/30
Abstract:
A method and a circuit for scrambling an RSA-CRT algorithm calculation by an electronic circuit, in which a result is obtained from two modular exponentiation calculations, each providing a partial result, and from a recombination step, and in which a first step adds a digital quantity to at least one first partial result before said recombination step; and a second step cancels the effects of this quantity after the recombination step.
Public/Granted literature
- US20080056489A1 SCRAMBLING OF A CALCULATION PERFORMED ACCORDING TO AN RSA-CRT ALGORITHM Public/Granted day:2008-03-06
Information query
