Description: RC4 encryption algorithm to achieve, it is the variable key length stream cipher algorithm clusters. It is called a cluster, is due to the core part of the S-box can be any length, but generally 256 bytes. The speed of the algorithm can achieve about 10 times DES encryption. The principle is very simple RC4 algorithm, including pseudo-random initialization algorithm and the two major sub-cipher algorithm.
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rc4.c
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