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DATA PROCESSING SYSTEM, METHOD FOR EXECUTING A CRYPTOGRAPHIC ALGORITHM AND METHOD FOR PREPARING EXECUTION OF A CRYPTOGRAPHIC ALGORITHM
DATA PROCESSING SYSTEM, METHOD FOR EXECUTING A CRYPTOGRAPHIC ALGORITHM AND METHOD FOR PREPARING EXECUTION OF A CRYPTOGRAPHIC ALGORITHM
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机译:数据处理系统,执行密码算法的方法和准备执行密码算法的方法
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摘要
A data processing system including a memory configured to store confidential data and non-confidential data; a cache memory which is configured to cache data stored in the memory and which comprises a first cache memory region and a second cache memory region; a processing circuit configured to carry out, in a first state of the data processing system, a cryptographic algorithm which operates on the confidential data and on the non-confidential data, wherein the confidential data are cached using the first cache memory region and the non-confidential data are cached using the second cache memory region; and an invalidating circuit configured to invalidate the first cache memory region when the data processing system switches from the first state into a second state.
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