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1 /*
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2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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3 *
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4 * Licensed under the OpenSSL license (the "License"). You may not use
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5 * this file except in compliance with the License. You can obtain a copy
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6 * in the file LICENSE in the source distribution or at
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7 * https://www.openssl.org/source/license.html
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8 */
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9
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10 #ifndef HEADER_BLOWFISH_H
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11 # define HEADER_BLOWFISH_H
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12
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13 # include <openssl/opensslconf.h>
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14
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15 # ifndef OPENSSL_NO_BF
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16 # include <openssl/e_os2.h>
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17 # ifdef __cplusplus
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18 extern "C" {
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19 # endif
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20
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21 # define BF_ENCRYPT 1
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22 # define BF_DECRYPT 0
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23
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24 /*-
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25 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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26 * ! BF_LONG has to be at least 32 bits wide. !
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27 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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28 */
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29 # define BF_LONG unsigned int
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30
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31 # define BF_ROUNDS 16
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32 # define BF_BLOCK 8
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33
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34 typedef struct bf_key_st {
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35 BF_LONG P[BF_ROUNDS + 2];
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36 BF_LONG S[4 * 256];
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37 } BF_KEY;
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38
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39 void BF_set_key(BF_KEY *key, int len, const unsigned char *data);
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40
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41 void BF_encrypt(BF_LONG *data, const BF_KEY *key);
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42 void BF_decrypt(BF_LONG *data, const BF_KEY *key);
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43
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44 void BF_ecb_encrypt(const unsigned char *in, unsigned char *out,
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45 const BF_KEY *key, int enc);
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46 void BF_cbc_encrypt(const unsigned char *in, unsigned char *out, long length,
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47 const BF_KEY *schedule, unsigned char *ivec, int enc);
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48 void BF_cfb64_encrypt(const unsigned char *in, unsigned char *out,
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49 long length, const BF_KEY *schedule,
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50 unsigned char *ivec, int *num, int enc);
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51 void BF_ofb64_encrypt(const unsigned char *in, unsigned char *out,
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52 long length, const BF_KEY *schedule,
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53 unsigned char *ivec, int *num);
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54 const char *BF_options(void);
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55
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56 # ifdef __cplusplus
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57 }
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58 # endif
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59 # endif
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60
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61 #endif
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