发明授权
US08582774B2 Method for making safe an electronic cryptography assembly with a secret key 失效
使用秘密密钥进行安全电子密码组合的方法

  • 专利标题: Method for making safe an electronic cryptography assembly with a secret key
  • 专利标题(中): 使用秘密密钥进行安全电子密码组合的方法
  • 申请号: US10506851
    申请日: 2003-03-04
  • 公开(公告)号: US08582774B2
    公开(公告)日: 2013-11-12
  • 发明人: Louis GoubinMehdi-Laurent Akkar
  • 申请人: Louis GoubinMehdi-Laurent Akkar
  • 申请人地址: FR Meudon
  • 专利权人: Gemalto SA
  • 当前专利权人: Gemalto SA
  • 当前专利权人地址: FR Meudon
  • 代理机构: The Jansson Firm
  • 代理商 Pehr B. Jansson
  • 优先权: FR0202918 20020307
  • 国际申请: PCT/IB03/00946 WO 20030304
  • 国际公布: WO03/075506 WO 20030912
  • 主分类号: H04L9/00
  • IPC分类号: H04L9/00
Method for making safe an electronic cryptography assembly with a secret key
摘要:
An aim of this invention is to eliminate the risks of aggression “DPA of the n order” attacks, for all n values, of cryptography electronic assemblies or systems with a secret or private key. The process according to this invention concerns a securing process for an electronic system using a cryptographic calculation procedure using a secret key. The process consists of masking intermediate results in input or output of at least one critical function for the said procedure.
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