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133 lines
4.7 KiB
C
133 lines
4.7 KiB
C
/* $OpenBSD: blf.h,v 1.7 2007/03/14 17:59:41 grunk Exp $ */
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/*
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* Blowfish - a fast block cipher designed by Bruce Schneier
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*
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* Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Niels Provos.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _NODE_BLF_H_
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#define _NODE_BLF_H_
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#include <sys/types.h>
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/* Solaris compatibility */
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#ifdef __sun
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#define u_int8_t uint8_t
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#define u_int16_t uint16_t
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#define u_int32_t uint32_t
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#define u_int64_t uint64_t
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#endif
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#ifdef _WIN32
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#define u_int8_t unsigned __int8
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#define u_int16_t unsigned __int16
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#define u_int32_t unsigned __int32
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#define u_int64_t unsigned __int64
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#endif
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/* Windows ssize_t compatibility */
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#if defined(_WIN32) || defined(_WIN64)
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# if defined(_WIN64)
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typedef __int64 LONG_PTR;
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# else
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typedef long LONG_PTR;
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# endif
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typedef LONG_PTR SSIZE_T;
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typedef SSIZE_T ssize_t;
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#endif
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/* z/OS compatibility */
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#ifdef __MVS__
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typedef unsigned char u_int8_t;
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typedef unsigned short u_int16_t;
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typedef unsigned int u_int32_t;
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typedef unsigned long long u_int64_t;
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#endif
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#define BCRYPT_VERSION '2'
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#define BCRYPT_MAXSALT 16 /* Precomputation is just so nice */
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#define BCRYPT_BLOCKS 6 /* Ciphertext blocks */
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#define BCRYPT_MINROUNDS 16 /* we have log2(rounds) in salt */
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/* Schneier specifies a maximum key length of 56 bytes.
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* This ensures that every key bit affects every cipher
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* bit. However, the subkeys can hold up to 72 bytes.
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* Warning: For normal blowfish encryption only 56 bytes
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* of the key affect all cipherbits.
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*/
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#define BLF_N 16 /* Number of Subkeys */
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#define BLF_MAXKEYLEN ((BLF_N-2)*4) /* 448 bits */
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#define BLF_MAXUTILIZED ((BLF_N+2)*4) /* 576 bits */
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#define _PASSWORD_LEN 128 /* max length, not counting NUL */
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#define _SALT_LEN 32 /* max length */
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/* Blowfish context */
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typedef struct BlowfishContext {
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u_int32_t S[4][256]; /* S-Boxes */
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u_int32_t P[BLF_N + 2]; /* Subkeys */
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} blf_ctx;
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/* Raw access to customized Blowfish
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* blf_key is just:
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* Blowfish_initstate( state )
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* Blowfish_expand0state( state, key, keylen )
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*/
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void Blowfish_encipher(blf_ctx *, u_int32_t *, u_int32_t *);
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void Blowfish_decipher(blf_ctx *, u_int32_t *, u_int32_t *);
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void Blowfish_initstate(blf_ctx *);
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void Blowfish_expand0state(blf_ctx *, const u_int8_t *, u_int16_t);
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void Blowfish_expandstate
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(blf_ctx *, const u_int8_t *, u_int16_t, const u_int8_t *, u_int16_t);
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/* Standard Blowfish */
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void blf_key(blf_ctx *, const u_int8_t *, u_int16_t);
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void blf_enc(blf_ctx *, u_int32_t *, u_int16_t);
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void blf_dec(blf_ctx *, u_int32_t *, u_int16_t);
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void blf_ecb_encrypt(blf_ctx *, u_int8_t *, u_int32_t);
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void blf_ecb_decrypt(blf_ctx *, u_int8_t *, u_int32_t);
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void blf_cbc_encrypt(blf_ctx *, u_int8_t *, u_int8_t *, u_int32_t);
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void blf_cbc_decrypt(blf_ctx *, u_int8_t *, u_int8_t *, u_int32_t);
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/* Converts u_int8_t to u_int32_t */
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u_int32_t Blowfish_stream2word(const u_int8_t *, u_int16_t , u_int16_t *);
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/* bcrypt functions*/
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void bcrypt_gensalt(char, u_int8_t, u_int8_t*, char *);
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void bcrypt(const char *, size_t key_len, const char *, char *);
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void encode_salt(char *, u_int8_t *, char, u_int16_t, u_int8_t);
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u_int32_t bcrypt_get_rounds(const char *);
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#endif
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