?? crypto.h
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#ifndef _CRYPTO_H#define _CRYPTO_H#ifndef uint8#define uint8 unsigned char#endif#ifndef uint32#define uint32 unsigned long int#endiftypedef struct{ uint32 total[2]; uint32 state[4]; uint8 buffer[64];}md5_context;void md5_starts( md5_context *ctx );void md5_update( md5_context *ctx, uint8 *input, uint32 length );void md5_finish( md5_context *ctx, uint8 digest[16] );void hmac_md5( uint8 *key, int keylen, uint8 *buffer, int length, uint8 digest[16] );typedef struct{ uint32 total[2]; uint32 state[5]; uint8 buffer[64];}sha1_context;void sha1_starts( sha1_context *ctx );void sha1_update( sha1_context *ctx, uint8 *input, uint32 length );void sha1_finish( sha1_context *ctx, uint8 digest[20] );void hmac_sha1( uint8 *key, int keylen, uint8 *buffer, int length, uint8 digest[20] );struct rc4_state{ int x, y, m[256];};void rc4_setup( struct rc4_state *s, unsigned char *key, int length );void rc4_crypt( struct rc4_state *s, unsigned char *data, int length );typedef struct{ uint32 erk[64]; /* encryption round keys */ uint32 drk[64]; /* decryption round keys */ int nr; /* number of rounds */}aes_context;int aes_set_key( aes_context *ctx, uint8 *key, int nbits );void aes_encrypt( aes_context *ctx, uint8 input[16], uint8 output[16] );void aes_decrypt( aes_context *ctx, uint8 input[16], uint8 output[16] );#endif /* crypto.h */
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