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METHOD AND DEVICES FOR PROTECTING A MICROCIRCUIT AGAINST ATTACKS TO DISCOVER SECRET DATA
METHOD AND DEVICES FOR PROTECTING A MICROCIRCUIT AGAINST ATTACKS TO DISCOVER SECRET DATA
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机译:保护针对攻击的微电路以发现秘密数据的方法和设备
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摘要
The method involves generating a protection parameter (P) of secret data (K, M) by a data generator (20'), and modifying execution of a cryptographic algorithm (10) using the protection parameter. A function for generating a sequence of values is defined by successive applications at a secret parameter (S) predetermined and stored in a memory space (16) of a memory (14), where the values are determined from the secret parameter and the function. The protection parameter is generated in a reproducible manner from the sequences. An independent claim is also included for a device for protecting an integrated circuit against attacks aiming to discover secret data used during execution of a cryptographic algorithm.
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