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/* Copyright 2003 Roger Dingledine
* Copyright 2004-2005 Roger Dingledine, Nick Mathewson */
/* See LICENSE for licensing information */
/* $Id$ */
/* Implements a minimal interface to counter-mode AES. */
#ifndef __AES_H
#define __AES_H
#define AES_H_ID "$Id$"
/**
* \file aes.h
* \brief Headers for aes.c
*/
#include "../common/torint.h"
struct aes_cnt_cipher;
typedef struct aes_cnt_cipher aes_cnt_cipher_t;
aes_cnt_cipher_t* aes_new_cipher(void);
void aes_free_cipher(aes_cnt_cipher_t *cipher);
void aes_set_key(aes_cnt_cipher_t *cipher, const char *key, int key_bits);
void aes_crypt(aes_cnt_cipher_t *cipher, const char *input, size_t len, char *output);
uint64_t aes_get_counter(aes_cnt_cipher_t *cipher);
void aes_set_counter(aes_cnt_cipher_t *cipher, uint64_t counter);
void aes_adjust_counter(aes_cnt_cipher_t *cipher, long delta);
#endif
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