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 #define AES_H_ID "$Id$"
  10
  11 /**
  12  * \file aes.h
  13  * \brief Headers for aes.c
  14  */
  15
  16 #include "../common/torint.h"
  17
  18 struct aes_cnt_cipher;
  19 typedef struct aes_cnt_cipher aes_cnt_cipher_t;
  20
  21 aes_cnt_cipher_t* aes_new_cipher(void);
  22 void aes_free_cipher(aes_cnt_cipher_t *cipher);
  23 void aes_set_key(aes_cnt_cipher_t *cipher, const unsigned char *key, int key_bits);
  24 void aes_crypt(aes_cnt_cipher_t *cipher, const char *input, int len, char *output);
  25 uint64_t aes_get_counter(aes_cnt_cipher_t *cipher);
  26 void aes_set_counter(aes_cnt_cipher_t *cipher, uint64_t counter);
  27 void aes_adjust_counter(aes_cnt_cipher_t *cipher, long delta);
  28
  29 #endif
  30