Differential fault attack injection attack aimed at SMS4 cryptographic algorithm
A cryptographic algorithm, differential fault technology, applied in the field of cryptographic algorithm analysis and detection, can solve problems such as difficult control
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[0059] The following describes the specific embodiments of the present invention so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes are made in These changes are obvious within the spirit and scope of the present invention defined and determined by the appended claims, and all inventions and creations that utilize the concept of the present invention are protected.
[0060] The fault injection attack method for SMS4 password algorithm includes the following steps:
[0061] S1: Determine a group of plain text X, and obtain the correct cipher text Y of the group of plain text X in the normal state and the wrong cipher text Y in the fault injection state.
[0062] S11: Determine a group of plaintext X, and obtain the correct ciphertext Y of the group of plaintext X under the correct key K.
[0063...
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