A Fractional Encryption Method Using Uncertain Encryption Algorithm
A segmented encryption and encryption algorithm technology, which is applied in the field of cryptography, can solve problems affecting the security of the algorithm, and achieve the effect of increased generalized key space, large uncertainty, and comprehensive performance optimization
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[0024] The following are embodiments of the invention, For convenience, the example is relatively simple.
[0025] First of all, in terms of the design of the encryption system, a 256-bit stream cipher is used to generate an algorithm-encoded sequence. The stream cipher is used to ensure security. Even if the algorithm used in some previous segments is known, it is impossible to use it to obtain other segmented encryption algorithms. The structure of the generalized key is that the first 256 bits are AK, and the last 512 bits are NK. It is agreed that the encrypted plaintext length of each algorithm is: block cipher algorithm and other block algorithm is a single block length, stream cipher and one-time pad algorithm is 128bit, the purpose of this selection is to make the algorithm change more frequently, and the same algorithm The encryption length of is as small as possible, and try not to exceed the unique solution distance.
[0026] Determination and coding of the alg...
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