/usr/include/skalibs/rc4.h is in skalibs-dev 0.47-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | /* Public domain. */
#ifndef RC4_H
#define RC4_H
#define RC4_THROWAWAY 128
typedef struct RC4Schedule RC4Schedule, *RC4Schedule_ref ;
struct RC4Schedule
{
unsigned char tab[256] ;
unsigned char x, y ;
} ;
extern void rc4_init (RC4Schedule_ref, char const *, unsigned int) ;
extern void rc4 (RC4Schedule_ref, char const *, char *, unsigned int) ;
#endif
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