| /** |
| * \file arc4.h |
| */ |
| #ifndef XYSSL_ARC4_H |
| #define XYSSL_ARC4_H |
| |
| /** |
| * \brief ARC4 context structure |
| */ |
| typedef struct |
| { |
| int x; /*!< permutation index */ |
| int y; /*!< permutation index */ |
| unsigned char m[256]; /*!< permutation table */ |
| } |
| arc4_context; |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** |
| * \brief ARC4 key schedule |
| * |
| * \param ctx ARC4 context to be initialized |
| * \param key the secret key |
| * \param keylen length of the key |
| */ |
| void arc4_setup( arc4_context *ctx, unsigned char *key, int keylen ); |
| |
| /** |
| * \brief ARC4 cipher function |
| * |
| * \param ctx ARC4 context |
| * \param buf buffer to be processed |
| * \param buflen amount of data in buf |
| */ |
| void arc4_crypt( arc4_context *ctx, unsigned char *buf, int buflen ); |
| |
| /* |
| * \brief Checkup routine |
| * |
| * \return 0 if successful, or 1 if the test failed |
| */ |
| int arc4_self_test( int verbose ); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* arc4.h */ |