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node_blf.h
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node_blf.h
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/* $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 _NODE_BLF_H_
#define _NODE_BLF_H_
#include <sys/types.h>
/* Solaris compatibility */
#ifdef __sun
#define u_int8_t uint8_t
#define u_int16_t uint16_t
#define u_int32_t uint32_t
#define u_int64_t uint64_t
#endif
#ifdef _WIN32
#define u_int8_t unsigned __int8
#define u_int16_t unsigned __int16
#define u_int32_t unsigned __int32
#define u_int64_t unsigned __int64
#endif
/* Windows ssize_t compatibility */
#if defined(_WIN32) || defined(_WIN64)
# if defined(_WIN64)
typedef __int64 LONG_PTR;
# else
typedef long LONG_PTR;
# endif
typedef LONG_PTR SSIZE_T;
typedef SSIZE_T ssize_t;
#endif
/* z/OS compatibility */
#ifdef __MVS__
typedef unsigned char u_int8_t;
typedef unsigned short u_int16_t;
typedef unsigned int u_int32_t;
typedef unsigned long long u_int64_t;
#endif
#define BCRYPT_VERSION '2'
#define BCRYPT_MAXSALT 16 /* Precomputation is just so nice */
#define BCRYPT_BLOCKS 6 /* Ciphertext blocks */
#define BCRYPT_MINROUNDS 16 /* we have log2(rounds) in salt */
/* 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 */
#define _SALT_LEN 32 /* max length */
/* Blowfish context */
typedef struct BlowfishContext {
u_int32_t S[4][256]; /* S-Boxes */
u_int32_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 *, u_int32_t *, u_int32_t *);
void Blowfish_decipher(blf_ctx *, u_int32_t *, u_int32_t *);
void Blowfish_initstate(blf_ctx *);
void Blowfish_expand0state(blf_ctx *, const u_int8_t *, u_int16_t);
void Blowfish_expandstate
(blf_ctx *, const u_int8_t *, u_int16_t, const u_int8_t *, u_int16_t);
/* Standard Blowfish */
void blf_key(blf_ctx *, const u_int8_t *, u_int16_t);
void blf_enc(blf_ctx *, u_int32_t *, u_int16_t);
void blf_dec(blf_ctx *, u_int32_t *, u_int16_t);
void blf_ecb_encrypt(blf_ctx *, u_int8_t *, u_int32_t);
void blf_ecb_decrypt(blf_ctx *, u_int8_t *, u_int32_t);
void blf_cbc_encrypt(blf_ctx *, u_int8_t *, u_int8_t *, u_int32_t);
void blf_cbc_decrypt(blf_ctx *, u_int8_t *, u_int8_t *, u_int32_t);
/* Converts u_int8_t to u_int32_t */
u_int32_t Blowfish_stream2word(const u_int8_t *, u_int16_t , u_int16_t *);
/* bcrypt functions*/
void bcrypt_gensalt(char, u_int8_t, u_int8_t*, char *);
void bcrypt(const char *, size_t key_len, const char *, char *);
void encode_salt(char *, u_int8_t *, char, u_int16_t, u_int8_t);
u_int32_t bcrypt_get_rounds(const char *);
#endif