Invention Application
WO01010077A1 METHOD FOR EXECUTING AN ENCRYPTION PROGRAM IN A MICROPROCESSOR-ASSISTED, PORTABLE DATA CARRIER 审中-公开
基准方法实施加密程序在微处理器,便携式媒体

  • Patent Title: METHOD FOR EXECUTING AN ENCRYPTION PROGRAM IN A MICROPROCESSOR-ASSISTED, PORTABLE DATA CARRIER
  • Patent Title (English): Method for executing an encryption program in a microprocessor-assisted, portable data carrier
  • Patent Title (中): 基准方法实施加密程序在微处理器,便携式媒体
  • Application No.: PCT/DE2000/002518
    Application Date: 2000-07-31
  • Publication No.: WO01010077A1
    Publication Date: 2001-02-08
  • Main IPC: G06F12/14
  • IPC: G06F12/14 H04L9/06
METHOD FOR EXECUTING AN ENCRYPTION PROGRAM IN A MICROPROCESSOR-ASSISTED, PORTABLE DATA CARRIER
Abstract:
The invention relates to a method, in which the data to be encrypted is linked by a random number using an exclusive-OR operation prior to encryption. According to the invention, the encryption program is modified in such a way that the standard encryption text can be ultimately retrieved. The inventive method provides protection against the DPA (Differential Power Analysis) attack.
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