发明名称 Microprocessor system and arrangement in order to operate a microprocessor system
摘要 <p>The system includes a processing unit (2) which is coupled to a memory (8,9) for performing read or write access. A cryptographic unit (81,82) is provided for encrypting and decrypting data values written to or read from the memory. A register (83) and logic elements (85a,b,c) provide a variable encryption key. The register is controlled so that the key is changed if the memory does not contain any more data values to be read out.</p>
申请公布号 EP1118941(B1) 申请公布日期 2008.01.02
申请号 EP20000100954 申请日期 2000.01.18
申请人 INFINEON TECHNOLOGIES AG 发明人 SEDLAK, HOLGER;GAMMEL, BERNDT;KNIFFLER, OLIVER
分类号 G06F12/08;G06F12/14;G06F15/78;G06F21/75 主分类号 G06F12/08
代理机构 代理人
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