Packages
comeonin
1.0.5
5.5.1
5.5.0
5.4.0
5.3.3
5.3.2
5.3.1
5.3.0
5.2.0
5.1.3
5.1.2
5.1.1
5.1.0
5.0.0
4.1.2
4.1.1
4.1.0
4.0.3
4.0.2
4.0.1
4.0.0
4.0.0-rc.0
3.2.0
3.1.0
3.0.2
3.0.1
3.0.0
2.6.0
2.5.3
2.5.2
2.5.1
2.5.0
2.4.0
2.3.1
2.3.0
2.2.0
2.1.1
2.1.0
2.0.3
2.0.2
2.0.1
2.0.0
1.6.0
1.5.0
1.4.1
1.4.0
1.3.2
1.3.1
1.3.0
1.2.2
1.2.1
1.2.0
1.1.4
1.1.3
1.1.2
1.1.1
1.1.0
1.0.5
1.0.4
1.0.3
1.0.2
1.0.1
1.0.0
0.11.3
0.11.2
0.11.1
0.11.0
0.10.0
0.9.0
0.8.2
0.8.1
0.8.0
0.7.0
0.6.0
0.5.1
0.5.0
0.4.0
0.3.1
0.3.0
0.2.4
0.2.3
0.2.2
0.2.1
0.2.0
0.1.1
0.1.0
A specification for password hashing libraries
Current section
Files
Jump to
Current section
Files
c_src/erl_blf.h
/* $OpenBSD: blf.h,v 1.7 2007/03/14 17:59:41 grunk Exp $ */
/*
* Blowfish - a fast block cipher designed by Bruce Schneier
*
* Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Niels Provos.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _ERL_BLF_H_
#define _ERL_BLF_H_
#include <stdint.h>
/* Schneier specifies a maximum key length of 56 bytes.
* This ensures that every key bit affects every cipher
* bit. However, the subkeys can hold up to 72 bytes.
* Warning: For normal blowfish encryption only 56 bytes
* of the key affect all cipherbits.
*/
#define BLF_N 16 /* Number of Subkeys */
#define BLF_MAXKEYLEN ((BLF_N-2)*4) /* 448 bits */
#define BLF_MAXUTILIZED ((BLF_N+2)*4) /* 576 bits */
#define _PASSWORD_LEN 128 /* max length, not counting NUL */
/* Blowfish context */
typedef struct BlowfishContext {
uint32_t S[4][256]; /* S-Boxes */
uint32_t P[BLF_N + 2]; /* Subkeys */
} blf_ctx;
/* Raw access to customized Blowfish
* blf_key is just:
* Blowfish_initstate( state )
* Blowfish_expand0state( state, key, keylen )
*/
void Blowfish_encipher(blf_ctx *, uint32_t *, uint32_t *);
void Blowfish_decipher(blf_ctx *, uint32_t *, uint32_t *);
void Blowfish_initstate(blf_ctx *);
void Blowfish_expand0state(blf_ctx *, const uint8_t *, uint16_t);
void Blowfish_expandstate
(blf_ctx *, const uint8_t *, uint16_t, const uint8_t *, uint16_t);
/* Standard Blowfish */
void blf_key(blf_ctx *, const uint8_t *, uint16_t);
void blf_enc(blf_ctx *, uint32_t *, uint16_t);
void blf_dec(blf_ctx *, uint32_t *, uint16_t);
void blf_ecb_encrypt(blf_ctx *, uint8_t *, uint32_t);
void blf_ecb_decrypt(blf_ctx *, uint8_t *, uint32_t);
void blf_cbc_encrypt(blf_ctx *, uint8_t *, uint8_t *, uint32_t);
void blf_cbc_decrypt(blf_ctx *, uint8_t *, uint8_t *, uint32_t);
/* Converts uint8_t to uint32_t */
uint32_t Blowfish_stream2word(const uint8_t *, uint16_t , uint16_t *);
#endif