Annotation of src/usr.bin/ssh/blowfish.h, Revision 1.1
1.1 ! deraadt 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 aheared 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 rouines 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 publically 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: #define BF_ENCRYPT 1
! 67: #define BF_DECRYPT 0
! 68:
! 69: /* If you make this 'unsigned int' the pointer variants will work on
! 70: * the Alpha, otherwise they will not. Strangly using the '8 byte'
! 71: * BF_LONG and the default 'non-pointer' inner loop is the best configuration
! 72: * for the Alpha */
! 73: #define BF_LONG unsigned long
! 74:
! 75: #define BF_ROUNDS 16
! 76: #define BF_BLOCK 8
! 77:
! 78: typedef struct bf_key_st
! 79: {
! 80: BF_LONG P[BF_ROUNDS+2];
! 81: BF_LONG S[4*256];
! 82: } BF_KEY;
! 83:
! 84: #ifndef NOPROTO
! 85:
! 86: void BF_set_key(BF_KEY *key, int len, unsigned char *data);
! 87: void BF_ecb_encrypt(unsigned char *in,unsigned char *out,BF_KEY *key,
! 88: int enc);
! 89: void BF_encrypt(BF_LONG *data,BF_KEY *key);
! 90: void BF_decrypt(BF_LONG *data,BF_KEY *key);
! 91: void BF_cbc_encrypt(unsigned char *in, unsigned char *out, long length,
! 92: BF_KEY *ks, unsigned char *iv, int enc);
! 93: void BF_cfb64_encrypt(unsigned char *in, unsigned char *out, long length,
! 94: BF_KEY *schedule, unsigned char *ivec, int *num, int enc);
! 95: void BF_ofb64_encrypt(unsigned char *in, unsigned char *out, long length,
! 96: BF_KEY *schedule, unsigned char *ivec, int *num);
! 97: char *BF_options(void);
! 98:
! 99: #else
! 100:
! 101: void BF_set_key();
! 102: void BF_ecb_encrypt();
! 103: void BF_encrypt();
! 104: void BF_decrypt();
! 105: void BF_cbc_encrypt();
! 106: void BF_cfb64_encrypt();
! 107: void BF_ofb64_encrypt();
! 108: char *BF_options();
! 109:
! 110: #endif
! 111:
! 112: #ifdef __cplusplus
! 113: }
! 114: #endif
! 115:
! 116: #endif