Annotation of embedaddon/strongswan/src/libstrongswan/plugins/blowfish/blowfish.h, revision 1.1
1.1 ! misho 1: /* crypto/bf/blowfish.h */
! 2: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
! 3: * All rights reserved.
! 4: *
! 5: * This package is an SSL implementation written
! 6: * by Eric Young (eay@cryptsoft.com).
! 7: * The implementation was written so as to conform with Netscapes SSL.
! 8: *
! 9: * This library is free for commercial and non-commercial use as long as
! 10: * the following conditions are adhered to. The following conditions
! 11: * apply to all code found in this distribution, be it the RC4, RSA,
! 12: * lhash, DES, etc., code; not just the SSL code. The SSL documentation
! 13: * included with this distribution is covered by the same copyright terms
! 14: * except that the holder is Tim Hudson (tjh@cryptsoft.com).
! 15: *
! 16: * Copyright remains Eric Young's, and as such any Copyright notices in
! 17: * the code are not to be removed.
! 18: * If this package is used in a product, Eric Young should be given attribution
! 19: * as the author of the parts of the library used.
! 20: * This can be in the form of a textual message at program startup or
! 21: * in documentation (online or textual) provided with the package.
! 22: *
! 23: * Redistribution and use in source and binary forms, with or without
! 24: * modification, are permitted provided that the following conditions
! 25: * are met:
! 26: * 1. Redistributions of source code must retain the copyright
! 27: * notice, this list of conditions and the following disclaimer.
! 28: * 2. Redistributions in binary form must reproduce the above copyright
! 29: * notice, this list of conditions and the following disclaimer in the
! 30: * documentation and/or other materials provided with the distribution.
! 31: * 3. All advertising materials mentioning features or use of this software
! 32: * must display the following acknowledgement:
! 33: * "This product includes cryptographic software written by
! 34: * Eric Young (eay@cryptsoft.com)"
! 35: * The word 'cryptographic' can be left out if the routines from the library
! 36: * being used are not cryptographic related :-).
! 37: * 4. If you include any Windows specific code (or a derivative thereof) from
! 38: * the apps directory (application code) you must include an acknowledgement:
! 39: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
! 40: *
! 41: * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
! 42: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 43: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 44: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
! 45: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 46: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 47: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 48: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 49: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 50: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 51: * SUCH DAMAGE.
! 52: *
! 53: * The licence and distribution terms for any publicly available version or
! 54: * derivative of this code cannot be changed. i.e. this code cannot simply be
! 55: * copied and put under another distribution licence
! 56: * [including the GNU Public Licence.]
! 57: */
! 58:
! 59: #ifndef HEADER_BLOWFISH_H
! 60: #define HEADER_BLOWFISH_H
! 61:
! 62: #ifdef __cplusplus
! 63: extern "C" {
! 64: #endif
! 65:
! 66: #ifdef NO_BF
! 67: #error BF is disabled.
! 68: #endif
! 69:
! 70: #define BF_ENCRYPT 1
! 71: #define BF_DECRYPT 0
! 72:
! 73: /*
! 74: * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
! 75: * ! BF_LONG has to be at least 32 bits wide. If it's wider, then !
! 76: * ! BF_LONG_LOG2 has to be defined along. !
! 77: * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
! 78: */
! 79:
! 80: #if defined(WIN16) || defined(__LP32__)
! 81: #define BF_LONG unsigned long
! 82: #elif defined(_CRAY) || defined(__ILP64__)
! 83: #define BF_LONG unsigned long
! 84: #define BF_LONG_LOG2 3
! 85: #endif
! 86: /*
! 87: * _CRAY note. I could declare short, but I have no idea what impact
! 88: * does it have on performance on none-T3E machines. I could declare
! 89: * int, but at least on C90 sizeof(int) can be chosen at compile time.
! 90: * So I've chosen long...
! 91: * <appro@fy.chalmers.se>
! 92: */
! 93:
! 94: /* des.h-like hack <jjo-ipsec@mendoza.gov.ar> */
! 95: #ifndef BF_LONG
! 96: #ifdef __KERNEL__
! 97: #include <linux/types.h>
! 98: #else
! 99: #include <sys/types.h>
! 100: #endif
! 101: #define BF_LONG u_int32_t
! 102: #endif
! 103:
! 104: #define BF_ROUNDS 16
! 105: #define BF_BLOCK 8
! 106:
! 107: typedef struct bf_key_st
! 108: {
! 109: BF_LONG P[BF_ROUNDS+2];
! 110: BF_LONG S[4*256];
! 111: } BF_KEY;
! 112:
! 113:
! 114: void BF_set_key(BF_KEY *key, int len, const unsigned char *data);
! 115:
! 116: void BF_encrypt(BF_LONG *data,const BF_KEY *key);
! 117: void BF_decrypt(BF_LONG *data,const BF_KEY *key);
! 118:
! 119: void BF_ecb_encrypt(const unsigned char *in, unsigned char *out,
! 120: const BF_KEY *key, int enc);
! 121: void BF_cbc_encrypt(const unsigned char *in, unsigned char *out, long length,
! 122: const BF_KEY *schedule, unsigned char *ivec, int enc);
! 123: void BF_cfb64_encrypt(const unsigned char *in, unsigned char *out, long length,
! 124: const BF_KEY *schedule, unsigned char *ivec, int *num, int enc);
! 125: void BF_ofb64_encrypt(const unsigned char *in, unsigned char *out, long length,
! 126: const BF_KEY *schedule, unsigned char *ivec, int *num);
! 127: const char *BF_options(void);
! 128:
! 129: #ifdef __cplusplus
! 130: }
! 131: #endif
! 132:
! 133: #endif
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