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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_
- /* 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
- #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(u_int8_t, u_int8_t*, char *);
- void bcrypt(const char *, const char *, char *);
- void encode_salt(char *, u_int8_t *, u_int16_t, u_int8_t);
- u_int32_t bcrypt_get_rounds(const char *);
- #endif
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