1 | /* dh.h
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2 | *
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3 | * Copyright (C) 2006-2020 wolfSSL Inc.
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4 | *
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5 | * This file is part of wolfSSL.
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6 | *
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7 | * wolfSSL is free software; you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation; either version 2 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * wolfSSL is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with this program; if not, write to the Free Software
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19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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20 | */
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21 |
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22 | /* dh.h for openSSL */
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23 |
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24 |
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25 | #ifndef WOLFSSL_DH_H_
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26 | #define WOLFSSL_DH_H_
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27 |
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28 | #include <wolfssl/openssl/bn.h>
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29 |
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30 | #ifdef __cplusplus
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31 | extern "C" {
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32 | #endif
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33 |
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34 | #ifndef WOLFSSL_DH_TYPE_DEFINED /* guard on redeclaration */
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35 | typedef struct WOLFSSL_DH WOLFSSL_DH;
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36 | #define WOLFSSL_DH_TYPE_DEFINED
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37 | #endif
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38 |
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39 | typedef WOLFSSL_DH DH;
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40 |
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41 | struct WOLFSSL_DH {
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42 | WOLFSSL_BIGNUM* p;
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43 | WOLFSSL_BIGNUM* g;
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44 | WOLFSSL_BIGNUM* q;
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45 | WOLFSSL_BIGNUM* pub_key; /* openssh deference g^x */
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46 | WOLFSSL_BIGNUM* priv_key; /* openssh deference x */
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47 | void* internal; /* our DH */
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48 | char inSet; /* internal set from external ? */
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49 | char exSet; /* external set from internal ? */
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50 | /*added for lighttpd openssl compatibility, go back and add a getter in
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51 | * lighttpd src code.
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52 | */
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53 | int length;
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54 | };
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55 |
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56 | WOLFSSL_API WOLFSSL_DH *wolfSSL_d2i_DHparams(WOLFSSL_DH **dh,
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57 | const unsigned char **pp, long length);
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58 | WOLFSSL_API int wolfSSL_i2d_DHparams(const WOLFSSL_DH *dh, unsigned char **out);
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59 | WOLFSSL_API WOLFSSL_DH* wolfSSL_DH_new(void);
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60 | WOLFSSL_API void wolfSSL_DH_free(WOLFSSL_DH*);
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61 |
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62 | WOLFSSL_API int wolfSSL_DH_check(const WOLFSSL_DH *dh, int *codes);
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63 | WOLFSSL_API int wolfSSL_DH_size(WOLFSSL_DH*);
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64 | WOLFSSL_API int wolfSSL_DH_generate_key(WOLFSSL_DH*);
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65 | WOLFSSL_API int wolfSSL_DH_compute_key(unsigned char* key, WOLFSSL_BIGNUM* pub,
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66 | WOLFSSL_DH*);
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67 | WOLFSSL_API int wolfSSL_DH_LoadDer(WOLFSSL_DH*, const unsigned char*, int sz);
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68 | WOLFSSL_API int wolfSSL_DH_set0_pqg(WOLFSSL_DH*, WOLFSSL_BIGNUM*,
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69 | WOLFSSL_BIGNUM*, WOLFSSL_BIGNUM*);
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70 |
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71 | #define DH_new wolfSSL_DH_new
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72 | #define DH_free wolfSSL_DH_free
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73 |
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74 | #define d2i_DHparams wolfSSL_d2i_DHparams
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75 | #define i2d_DHparams wolfSSL_i2d_DHparams
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76 | #define DH_check wolfSSL_DH_check
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77 |
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78 | #define DH_size wolfSSL_DH_size
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79 | #define DH_generate_key wolfSSL_DH_generate_key
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80 | #define DH_compute_key wolfSSL_DH_compute_key
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81 | #if defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x10100000L
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82 | #define DH_set0_pqg wolfSSL_DH_set0_pqg
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83 | #endif
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84 | #define DH_bits(x) (BN_num_bits(x->p))
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85 |
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86 | #define DH_GENERATOR_2 2
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87 | #define DH_CHECK_P_NOT_PRIME 0x01
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88 | #define DH_CHECK_P_NOT_SAFE_PRIME 0x02
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89 | #define DH_NOT_SUITABLE_GENERATOR 0x08
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90 |
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91 | /* Temporary values for wolfSSL_DH_Check*/
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92 | #define DH_CHECK_INVALID_Q_VALUE 0x10
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93 | #define DH_CHECK_Q_NOT_PRIME 0x11
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94 | /* end temp */
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95 |
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96 | /* for pre 1.1.0 */
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97 | #define get_rfc2409_prime_768 wolfSSL_DH_768_prime
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98 | #define get_rfc2409_prime_1024 wolfSSL_DH_1024_prime
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99 | #define get_rfc3526_prime_1536 wolfSSL_DH_1536_prime
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100 | #define get_rfc3526_prime_2048 wolfSSL_DH_2048_prime
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101 | #define get_rfc3526_prime_3072 wolfSSL_DH_3072_prime
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102 | #define get_rfc3526_prime_4096 wolfSSL_DH_4096_prime
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103 | #define get_rfc3526_prime_6144 wolfSSL_DH_6144_prime
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104 | #define get_rfc3526_prime_8192 wolfSSL_DH_8192_prime
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105 |
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106 | #ifdef __cplusplus
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107 | } /* extern "C" */
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108 | #endif
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109 |
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110 | #if defined(OPENSSL_ALL) || defined(HAVE_STUNNEL)
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111 | #define DH_generate_parameters wolfSSL_DH_generate_parameters
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112 | #define DH_generate_parameters_ex wolfSSL_DH_generate_parameters_ex
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113 | #endif /* OPENSSL_ALL || HAVE_STUNNEL */
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114 |
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115 | #endif /* WOLFSSL_DH_H_ */
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