发明授权
US07107616B2 Method of producing a response 有权
产生回应的方法

  • 专利标题: Method of producing a response
  • 专利标题(中): 产生回应的方法
  • 申请号: US10047193
    申请日: 2002-01-15
  • 公开(公告)号: US07107616B2
    公开(公告)日: 2006-09-12
  • 发明人: Lauri Paatero
  • 申请人: Lauri Paatero
  • 申请人地址: FI Vantaa
  • 专利权人: Setec Oy
  • 当前专利权人: Setec Oy
  • 当前专利权人地址: FI Vantaa
  • 代理机构: Akin Gump Strauss Hauer & Feld, LLP
  • 优先权: FI991617 19990716
  • 主分类号: H04L9/32
  • IPC分类号: H04L9/32
Method of producing a response
摘要:
The present invention relates to a device (1) comprising an input for receiving an input; calculation means (P) for producing a response (OUTPUT) in response to the input (INPUT) and a secret key (A) by utilizing a first predetermined function (f), and an output (3) for feeding said response (OUTPUT) further. In order for an attacker not be able to find out the secret key, the device further comprises a memory (M) in which the key-specific number (RND) is stored, and means for retrieving the key-specific number (RND) from the memory (M) and for feeding it to the calculation means (P′) for carrying out predetermined calculation operations (f2) on the basis of the key-specific number (RND) when producing said response (OUTPUT).
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