Invention Grant
US07809141B2 Ciphering by blocks of the content of a memory external to a processor
有权
通过处理器外部存储器的内容的块进行加密
- Patent Title: Ciphering by blocks of the content of a memory external to a processor
- Patent Title (中): 通过处理器外部存储器的内容的块进行加密
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Application No.: US11175978Application Date: 2005-07-06
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Publication No.: US07809141B2Publication Date: 2010-10-05
- Inventor: Joan Daemen , Gilles Van Assche , Guido Marco Bertoni
- Applicant: Joan Daemen , Gilles Van Assche , Guido Marco Bertoni
- Applicant Address: IT Agrate Brianza (MI) BE Zaventem
- Assignee: STMicroelectroics S.r.l.,Proton World International N.V.
- Current Assignee: STMicroelectroics S.r.l.,Proton World International N.V.
- Current Assignee Address: IT Agrate Brianza (MI) BE Zaventem
- Agency: Wolf, Greenfield & Sacks, P.C.
- Agent Lisa K. Jorgenson; William R. McClellan
- Priority: FR0451458 20040706
- Main IPC: H04L9/00
- IPC: H04L9/00
Abstract:
A method and an element for ciphering with an integrated processor data to be stored in a memory, including applying to each data block to be ciphered a ciphering algorithm which is a function of at least one key specific to the integrated circuit, and before applying the ciphering algorithm thereto, combining the data block to be ciphered with the result of a function of the storage address of the ciphered block in the memory, and/or of combining the key with the result of a function of the storage address of the ciphered block in the memory and of a digital quantity different from the ciphering key.
Public/Granted literature
- US20060008084A1 Ciphering by blocks of the content of a memory external to a processor Public/Granted day:2006-01-12
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