发明名称 System and method for using dummy cycles to mask operations in a secure microcontroller
摘要 <p>A secure device includes a memory capable of storing information. The secure device also includes a secure microcontroller capable of securing the information in the memory. The secure microcontroller includes a plurality of registers. The secure microcontroller also includes combinatorial logic capable of receiving at least one output value provided by at least one of the registers. The combinatorial logic is also capable of performing one or more combinatorial operations using the at least one received output value. In addition, the secure microcontroller includes dummy cycle circuitry capable of causing one or more of the registers and the combinatorial logic to change state and consume current during one or more dummy cycles.</p>
申请公布号 EP1772811(A3) 申请公布日期 2007.07.25
申请号 EP20060255105 申请日期 2006.10.03
申请人 STMICROELECTRONICS, INC.;STMICROELECTRONICS SA 发明人 FRUHAUF, SERGE F.;POMET, ALAIN C.
分类号 G06F21/02;G06F21/00 主分类号 G06F21/02
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