发明授权
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
- 专利标题： Ciphering by blocks of the content of a memory external to a processor
- 专利标题（中）： 通过处理器外部存储器的内容的块进行加密
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申请号： US11175978申请日： 2005-07-06
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公开(公告)号： US07809141B2公开(公告)日： 2010-10-05
- 发明人: Joan Daemen , Gilles Van Assche , Guido Marco Bertoni
- 申请人： Joan Daemen , Gilles Van Assche , Guido Marco Bertoni
- 申请人地址： IT Agrate Brianza (MI) BE Zaventem
- 专利权人： STMicroelectroics S.r.l.,Proton World International N.V.
- 当前专利权人： STMicroelectroics S.r.l.,Proton World International N.V.
- 当前专利权人地址： IT Agrate Brianza (MI) BE Zaventem
- 代理机构： Wolf, Greenfield & Sacks, P.C.
- 代理商 Lisa K. Jorgenson; William R. McClellan
- 优先权： FR0451458 20040706
- 主分类号： H04L9/00
- IPC分类号： H04L9/00
摘要：
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.
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