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Cryptographic operation by applying sub-keys to multiplication units in accordance with galois-field arithmetic
Cryptographic operation by applying sub-keys to multiplication units in accordance with galois-field arithmetic
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机译:通过根据伽罗瓦域算法将子密钥应用于乘法单元来进行加密操作
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摘要
A cryptography apparatus includes multiple multiplication units and logic circuitry. The multiplication units are arranged in two or more multiplication levels, and are configured to operate in accordance with Galois-Field (GF) arithmetic over respective Galois fields. The logic circuitry is configured to receive input data whose word-size exceeds a maximal input word-size among the multiplication units, to hold a cryptographic key including multiple sub-keys whose number does not exceed a number of the multiplication units, and to perform a cryptographic operation on the input data by applying the sub-keys to the multiplication units.
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