aes.h

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#ifndef _AES_H
#define _AES_H
 
#ifndef uint8
#define uint8  unsigned char
#endif
 
#ifndef uint32
#define uint32 unsigned long int
#endif
 
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 /* aes.h */