| 摘要 |
Component of a security module comprises at least two processors linked through an exchange memory and by a first non-volatile programmable and erasable memory. The first processor has an interface bus with the exterior of the component and is connected to a first random access memory and to a first read only memory. The second processor is connected to a second random access memory and to a second read only memory as well as to a second non-volatile programmable and erasable memory. The first and second random access memories are used for temporary storage of data in process. The first non-volatile programmable and erasable memory of the first processor have read only access for the first processor and the second processor has read and write access on the first non-volatile programmable and erasable memory of the first processor. The exchange memory consists of a random access memory intended for temporary data storage. The exchange memory is equipped with two ports, each configured in read and write, one of which is connected to the first processor and the other to the second processor. All secured operations are managed and executed by the second processor.
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