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 NAME     
 |  |  |  | setupRC4state, rc4, rc4skip, rc4back - alleged rc4 encryption 
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 SYNOPSIS     
 |  |  |  | #include <u.h> #include <libc.h>
 #include <mp.h>
 #include <libsec.h> 
    
    
    void    setupRC4state(RC4state *s, uchar *seed, int slen) 
    
    
    void    rc4(RC4state *s, uchar *data, int dlen) 
    
    
    void    rc4skip(RC4state *s, int nbytes) 
    
    
    void    rc4back(RC4state *s, int nbytes)
 
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 DESCRIPTION     
 |  |  |  | This is an algorithm alleged to be Rivest’s RC4 encryption function.
    It is a pseudo-random number generator with a 256 byte state and
    a long cycle. The input buffer is XOR’d with the output of the
    generator both to encrypt and to decrypt. The seed, entered using
    setupRC4state, can be any length. The generator can be run forward
    using rc4, skip
    over bytes using rc4skip to account lost transmissions, or run
    backwards using rc4back to cover retransmitted data. The RC4state
    structure keeps track of the algorithm. 
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 SOURCE     
 SEE ALSO    
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