src/common/aes.h

   1 /* Copyright 2003 Roger Dingledine */
   2 /* See LICENSE for licensing information */
   3 /* $Id$ */
   4
   5 /* Implements a minimal interface to counter-mode AES. */
   6
   7 #ifndef __AES_H
   8 #define __AES_H
   9
  10 /**
  11  * \file aes.h
  12  * \brief Headers for aes.c
  13  */
  14
  15 #include "../common/torint.h"
  16
  17 struct aes_cnt_cipher;
  18 typedef struct aes_cnt_cipher aes_cnt_cipher_t;
  19
  20 aes_cnt_cipher_t* aes_new_cipher(void);
  21 void aes_free_cipher(aes_cnt_cipher_t *cipher);
  22 void aes_set_key(aes_cnt_cipher_t *cipher, const unsigned char *key, int key_bits);
  23 void aes_crypt(aes_cnt_cipher_t *cipher, const char *input, int len, char *output);
  24 uint64_t aes_get_counter(aes_cnt_cipher_t *cipher);
  25 void aes_set_counter(aes_cnt_cipher_t *cipher, uint64_t counter);
  26 void aes_adjust_counter(aes_cnt_cipher_t *cipher, long delta);
  27
  28 #endif
  29
  30 /*
  31   Local Variables:
  32   mode:c
  33   indent-tabs-mode:nil
  34   c-basic-offset:2
  35   End:
  36 */