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Nick Mathewson
7e93139a85
Switch our AES implementation from "128 bit counter with to 64 bits set to 0" to a proper implementation of counter mode. Also, add an aes_set_iv function to initialize the counter to a nonzero value. svn:r11518
36 lines
938 B
C
36 lines
938 B
C
/* Copyright 2003 Roger Dingledine
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* Copyright 2004-2007 Roger Dingledine, Nick Mathewson */
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/* See LICENSE for licensing information */
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/* $Id$ */
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/* Implements a minimal interface to counter-mode AES. */
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#ifndef __AES_H
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#define __AES_H
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#define AES_H_ID "$Id$"
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/**
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* \file aes.h
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* \brief Headers for aes.c
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*/
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#include "torint.h"
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struct aes_cnt_cipher;
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typedef struct aes_cnt_cipher aes_cnt_cipher_t;
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aes_cnt_cipher_t* aes_new_cipher(void);
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void aes_free_cipher(aes_cnt_cipher_t *cipher);
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void aes_set_key(aes_cnt_cipher_t *cipher, const char *key, int key_bits);
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void aes_crypt(aes_cnt_cipher_t *cipher, const char *input, size_t len,
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char *output);
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void aes_set_iv(aes_cnt_cipher_t *cipher, const char *iv);
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#if 0
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uint64_t aes_get_counter(aes_cnt_cipher_t *cipher);
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void aes_set_counter(aes_cnt_cipher_t *cipher, uint64_t counter);
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void aes_adjust_counter(aes_cnt_cipher_t *cipher, long delta);
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#endif
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#endif
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