[331] | 1 | /*
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| 2 | * Copyright 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 | #include <string.h>
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| 11 | #include "rsa_locl.h"
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| 12 | #include <openssl/err.h>
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| 13 |
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| 14 | RSA_METHOD *RSA_meth_new(const char *name, int flags)
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| 15 | {
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| 16 | RSA_METHOD *meth = OPENSSL_zalloc(sizeof(*meth));
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| 17 |
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| 18 | if (meth != NULL) {
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| 19 | meth->flags = flags;
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| 20 |
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| 21 | meth->name = OPENSSL_strdup(name);
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| 22 | if (meth->name != NULL)
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| 23 | return meth;
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| 24 |
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| 25 | OPENSSL_free(meth);
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| 26 | }
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| 27 |
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| 28 | RSAerr(RSA_F_RSA_METH_NEW, ERR_R_MALLOC_FAILURE);
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| 29 | return NULL;
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| 30 | }
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| 31 |
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| 32 | void RSA_meth_free(RSA_METHOD *meth)
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| 33 | {
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| 34 | if (meth != NULL) {
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| 35 | OPENSSL_free(meth->name);
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| 36 | OPENSSL_free(meth);
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| 37 | }
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| 38 | }
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| 39 |
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| 40 | RSA_METHOD *RSA_meth_dup(const RSA_METHOD *meth)
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| 41 | {
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| 42 | RSA_METHOD *ret = OPENSSL_malloc(sizeof(*ret));
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| 43 |
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| 44 | if (ret != NULL) {
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| 45 | memcpy(ret, meth, sizeof(*meth));
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| 46 |
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| 47 | ret->name = OPENSSL_strdup(meth->name);
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| 48 | if (ret->name != NULL)
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| 49 | return ret;
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| 50 |
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| 51 | OPENSSL_free(ret);
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| 52 | }
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| 53 |
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| 54 | RSAerr(RSA_F_RSA_METH_DUP, ERR_R_MALLOC_FAILURE);
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| 55 | return NULL;
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| 56 | }
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| 57 |
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| 58 | const char *RSA_meth_get0_name(const RSA_METHOD *meth)
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| 59 | {
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| 60 | return meth->name;
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| 61 | }
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| 62 |
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| 63 | int RSA_meth_set1_name(RSA_METHOD *meth, const char *name)
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| 64 | {
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| 65 | char *tmpname = OPENSSL_strdup(name);
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| 66 |
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| 67 | if (tmpname == NULL) {
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| 68 | RSAerr(RSA_F_RSA_METH_SET1_NAME, ERR_R_MALLOC_FAILURE);
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| 69 | return 0;
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| 70 | }
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| 71 |
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| 72 | OPENSSL_free(meth->name);
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| 73 | meth->name = tmpname;
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| 74 |
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| 75 | return 1;
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| 76 | }
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| 77 |
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| 78 | int RSA_meth_get_flags(RSA_METHOD *meth)
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| 79 | {
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| 80 | return meth->flags;
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| 81 | }
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| 82 |
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| 83 | int RSA_meth_set_flags(RSA_METHOD *meth, int flags)
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| 84 | {
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| 85 | meth->flags = flags;
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| 86 | return 1;
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| 87 | }
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| 88 |
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| 89 | void *RSA_meth_get0_app_data(const RSA_METHOD *meth)
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| 90 | {
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| 91 | return meth->app_data;
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| 92 | }
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| 93 |
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| 94 | int RSA_meth_set0_app_data(RSA_METHOD *meth, void *app_data)
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| 95 | {
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| 96 | meth->app_data = app_data;
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| 97 | return 1;
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| 98 | }
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| 99 |
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| 100 | int (*RSA_meth_get_pub_enc(const RSA_METHOD *meth))
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| 101 | (int flen, const unsigned char *from,
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| 102 | unsigned char *to, RSA *rsa, int padding)
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| 103 | {
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| 104 | return meth->rsa_pub_enc;
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| 105 | }
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| 106 |
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| 107 | int RSA_meth_set_pub_enc(RSA_METHOD *meth,
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| 108 | int (*pub_enc) (int flen, const unsigned char *from,
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| 109 | unsigned char *to, RSA *rsa,
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| 110 | int padding))
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| 111 | {
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| 112 | meth->rsa_pub_enc = pub_enc;
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| 113 | return 1;
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| 114 | }
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| 115 |
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| 116 | int (*RSA_meth_get_pub_dec(const RSA_METHOD *meth))
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| 117 | (int flen, const unsigned char *from,
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| 118 | unsigned char *to, RSA *rsa, int padding)
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| 119 | {
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| 120 | return meth->rsa_pub_dec;
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| 121 | }
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| 122 |
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| 123 | int RSA_meth_set_pub_dec(RSA_METHOD *meth,
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| 124 | int (*pub_dec) (int flen, const unsigned char *from,
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| 125 | unsigned char *to, RSA *rsa,
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| 126 | int padding))
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| 127 | {
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| 128 | meth->rsa_pub_dec = pub_dec;
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| 129 | return 1;
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| 130 | }
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| 131 |
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| 132 | int (*RSA_meth_get_priv_enc(const RSA_METHOD *meth))
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| 133 | (int flen, const unsigned char *from,
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| 134 | unsigned char *to, RSA *rsa, int padding)
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| 135 | {
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| 136 | return meth->rsa_priv_enc;
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| 137 | }
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| 138 |
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| 139 | int RSA_meth_set_priv_enc(RSA_METHOD *meth,
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| 140 | int (*priv_enc) (int flen, const unsigned char *from,
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| 141 | unsigned char *to, RSA *rsa,
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| 142 | int padding))
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| 143 | {
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| 144 | meth->rsa_priv_enc = priv_enc;
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| 145 | return 1;
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| 146 | }
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| 147 |
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| 148 | int (*RSA_meth_get_priv_dec(const RSA_METHOD *meth))
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| 149 | (int flen, const unsigned char *from,
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| 150 | unsigned char *to, RSA *rsa, int padding)
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| 151 | {
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| 152 | return meth->rsa_priv_dec;
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| 153 | }
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| 154 |
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| 155 | int RSA_meth_set_priv_dec(RSA_METHOD *meth,
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| 156 | int (*priv_dec) (int flen, const unsigned char *from,
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| 157 | unsigned char *to, RSA *rsa,
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| 158 | int padding))
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| 159 | {
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| 160 | meth->rsa_priv_dec = priv_dec;
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| 161 | return 1;
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| 162 | }
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| 163 |
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| 164 | /* Can be null */
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| 165 | int (*RSA_meth_get_mod_exp(const RSA_METHOD *meth))
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| 166 | (BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
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| 167 | {
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| 168 | return meth->rsa_mod_exp;
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| 169 | }
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| 170 |
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| 171 | int RSA_meth_set_mod_exp(RSA_METHOD *meth,
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| 172 | int (*mod_exp) (BIGNUM *r0, const BIGNUM *I, RSA *rsa,
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| 173 | BN_CTX *ctx))
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| 174 | {
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| 175 | meth->rsa_mod_exp = mod_exp;
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| 176 | return 1;
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| 177 | }
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| 178 |
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| 179 | /* Can be null */
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| 180 | int (*RSA_meth_get_bn_mod_exp(const RSA_METHOD *meth))
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| 181 | (BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
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| 182 | const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
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| 183 | {
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| 184 | return meth->bn_mod_exp;
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| 185 | }
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| 186 |
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| 187 | int RSA_meth_set_bn_mod_exp(RSA_METHOD *meth,
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| 188 | int (*bn_mod_exp) (BIGNUM *r,
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| 189 | const BIGNUM *a,
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| 190 | const BIGNUM *p,
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| 191 | const BIGNUM *m,
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| 192 | BN_CTX *ctx,
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| 193 | BN_MONT_CTX *m_ctx))
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| 194 | {
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| 195 | meth->bn_mod_exp = bn_mod_exp;
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| 196 | return 1;
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| 197 | }
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| 198 |
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| 199 | /* called at new */
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| 200 | int (*RSA_meth_get_init(const RSA_METHOD *meth)) (RSA *rsa)
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| 201 | {
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| 202 | return meth->init;
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| 203 | }
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| 204 |
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| 205 | int RSA_meth_set_init(RSA_METHOD *meth, int (*init) (RSA *rsa))
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| 206 | {
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| 207 | meth->init = init;
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| 208 | return 1;
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| 209 | }
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| 210 |
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| 211 | /* called at free */
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| 212 | int (*RSA_meth_get_finish(const RSA_METHOD *meth)) (RSA *rsa)
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| 213 | {
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| 214 | return meth->finish;
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| 215 | }
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| 216 |
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| 217 | int RSA_meth_set_finish(RSA_METHOD *meth, int (*finish) (RSA *rsa))
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| 218 | {
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| 219 | meth->finish = finish;
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| 220 | return 1;
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| 221 | }
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| 222 |
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| 223 | int (*RSA_meth_get_sign(const RSA_METHOD *meth))
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| 224 | (int type,
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| 225 | const unsigned char *m, unsigned int m_length,
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| 226 | unsigned char *sigret, unsigned int *siglen,
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| 227 | const RSA *rsa)
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| 228 | {
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| 229 | return meth->rsa_sign;
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| 230 | }
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| 231 |
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| 232 | int RSA_meth_set_sign(RSA_METHOD *meth,
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| 233 | int (*sign) (int type, const unsigned char *m,
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| 234 | unsigned int m_length,
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| 235 | unsigned char *sigret, unsigned int *siglen,
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| 236 | const RSA *rsa))
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| 237 | {
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| 238 | meth->rsa_sign = sign;
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| 239 | return 1;
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| 240 | }
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| 241 |
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| 242 | int (*RSA_meth_get_verify(const RSA_METHOD *meth))
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| 243 | (int dtype, const unsigned char *m,
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| 244 | unsigned int m_length, const unsigned char *sigbuf,
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| 245 | unsigned int siglen, const RSA *rsa)
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| 246 | {
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| 247 | return meth->rsa_verify;
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| 248 | }
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| 249 |
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| 250 | int RSA_meth_set_verify(RSA_METHOD *meth,
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| 251 | int (*verify) (int dtype, const unsigned char *m,
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| 252 | unsigned int m_length,
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| 253 | const unsigned char *sigbuf,
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| 254 | unsigned int siglen, const RSA *rsa))
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| 255 | {
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| 256 | meth->rsa_verify = verify;
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| 257 | return 1;
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| 258 | }
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| 259 |
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| 260 | int (*RSA_meth_get_keygen(const RSA_METHOD *meth))
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| 261 | (RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb)
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| 262 | {
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| 263 | return meth->rsa_keygen;
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| 264 | }
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| 265 |
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| 266 | int RSA_meth_set_keygen(RSA_METHOD *meth,
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| 267 | int (*keygen) (RSA *rsa, int bits, BIGNUM *e,
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| 268 | BN_GENCB *cb))
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| 269 | {
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| 270 | meth->rsa_keygen = keygen;
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| 271 | return 1;
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| 272 | }
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| 273 |
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