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1. 发明申请

WO2003025715A1 SECURE INTEGRATED CIRCUIT INCLUDING PARTS HAVING A CONFIDENTIAL NATURE AND METHOD FOR OPERATING THE SAME 审中-公开
标题翻译：安全集成电路，包括具有机密性质的部件及其操作方法
公开(公告)号：WO2003025715A1
公开(公告)日：2003-03-27
申请号：PCT/EP2002/009819
申请日：2002-09-03
申请人： EM MICROELECTRONIC-MARIN SA , BLANGY, Hugues , PEVEC, Albin
发明人： BLANGY, Hugues , PEVEC, Albin
IPC分类号： G06F1/00
CPC分类号： G06F21/75 , G06F21/755 , G06K19/073 , G06K19/07363 , H04L9/0662 , H04L2209/127
摘要： The secure integrated circuit (1) further includes storage means (2) in which confidential data is stored, such as an encryption programme and at least an encryption key, and a microprocessor unit (3) for executing the encryption programme. Said circuit further includes an oscillator stage (4, 5) supplying clock 5 signals (CLK) in particular for clocking the sequence of operations in the microprocessor unit (3), and a random number generator (6) connected to the microprocessor unit. A random number (RNGosc) generated by the random number generator is supplied to the input of the oscillator stage to configure it such that the frequency of the clock signals supplied by the oscillator stage depends on said random number. The oscillator stage includes an RC type oscillator, in which a certain number of resistors and/or capacitors can be selected by the random number introduced at the input of the oscillator stage. So the frequency of clock signals depends on the RC component selected as a function of said received random number.
摘要翻译：安全集成电路（1）还包括存储有机密数据的存储装置（2），诸如加密程序和至少一个加密密钥，以及用于执行加密程序的微处理器单元（3）。所述电路还包括提供时钟5信号（CLK）的振荡器级（5,5），特别地用于对微处理器单元（3）中的操作序列进行计时，以及连接到微处理器单元的随机数发生器（6）。由随机数发生器生成的随机数（RNGosc）被提供给振荡器级的输入端，以使得振荡器级提供的时钟信号的频率取决于所述随机数。振荡器级包括RC型振荡器，其中可以通过在振荡器级的输入处引入的随机数来选择一定数量的电阻器和/或电容器。因此，时钟信号的频率取决于作为所接收的随机数的函数选择的RC分量。

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