summaryrefslogtreecommitdiff
path: root/src/lib/libcrypto/rsa/rsa_crpt.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/libcrypto/rsa/rsa_crpt.c')
-rw-r--r--src/lib/libcrypto/rsa/rsa_crpt.c214
1 files changed, 0 insertions, 214 deletions
diff --git a/src/lib/libcrypto/rsa/rsa_crpt.c b/src/lib/libcrypto/rsa/rsa_crpt.c
deleted file mode 100644
index ccb677c12b..0000000000
--- a/src/lib/libcrypto/rsa/rsa_crpt.c
+++ /dev/null
@@ -1,214 +0,0 @@
1/* $OpenBSD: rsa_crpt.c,v 1.16 2016/07/07 11:53:12 bcook Exp $ */
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#include <stdio.h>
60
61#include <openssl/opensslconf.h>
62
63#include <openssl/bn.h>
64#include <openssl/crypto.h>
65#include <openssl/err.h>
66#include <openssl/lhash.h>
67#include <openssl/rsa.h>
68
69#ifndef OPENSSL_NO_ENGINE
70#include <openssl/engine.h>
71#endif
72
73int
74RSA_size(const RSA *r)
75{
76 return BN_num_bytes(r->n);
77}
78
79int
80RSA_public_encrypt(int flen, const unsigned char *from, unsigned char *to,
81 RSA *rsa, int padding)
82{
83 return rsa->meth->rsa_pub_enc(flen, from, to, rsa, padding);
84}
85
86int
87RSA_private_encrypt(int flen, const unsigned char *from, unsigned char *to,
88 RSA *rsa, int padding)
89{
90 return rsa->meth->rsa_priv_enc(flen, from, to, rsa, padding);
91}
92
93int
94RSA_private_decrypt(int flen, const unsigned char *from, unsigned char *to,
95 RSA *rsa, int padding)
96{
97 return rsa->meth->rsa_priv_dec(flen, from, to, rsa, padding);
98}
99
100int
101RSA_public_decrypt(int flen, const unsigned char *from, unsigned char *to,
102 RSA *rsa, int padding)
103{
104 return rsa->meth->rsa_pub_dec(flen, from, to, rsa, padding);
105}
106
107int
108RSA_flags(const RSA *r)
109{
110 return r == NULL ? 0 : r->meth->flags;
111}
112
113void
114RSA_blinding_off(RSA *rsa)
115{
116 BN_BLINDING_free(rsa->blinding);
117 rsa->blinding = NULL;
118 rsa->flags |= RSA_FLAG_NO_BLINDING;
119}
120
121int
122RSA_blinding_on(RSA *rsa, BN_CTX *ctx)
123{
124 int ret = 0;
125
126 if (rsa->blinding != NULL)
127 RSA_blinding_off(rsa);
128
129 rsa->blinding = RSA_setup_blinding(rsa, ctx);
130 if (rsa->blinding == NULL)
131 goto err;
132
133 rsa->flags &= ~RSA_FLAG_NO_BLINDING;
134 ret = 1;
135err:
136 return (ret);
137}
138
139static BIGNUM *
140rsa_get_public_exp(const BIGNUM *d, const BIGNUM *p, const BIGNUM *q,
141 BN_CTX *ctx)
142{
143 BIGNUM *ret = NULL, *r0, *r1, *r2;
144
145 if (d == NULL || p == NULL || q == NULL)
146 return NULL;
147
148 BN_CTX_start(ctx);
149 if ((r0 = BN_CTX_get(ctx)) == NULL)
150 goto err;
151 if ((r1 = BN_CTX_get(ctx)) == NULL)
152 goto err;
153 if ((r2 = BN_CTX_get(ctx)) == NULL)
154 goto err;
155
156 if (!BN_sub(r1, p, BN_value_one()))
157 goto err;
158 if (!BN_sub(r2, q, BN_value_one()))
159 goto err;
160 if (!BN_mul(r0, r1, r2, ctx))
161 goto err;
162
163 ret = BN_mod_inverse(NULL, d, r0, ctx);
164err:
165 BN_CTX_end(ctx);
166 return ret;
167}
168
169BN_BLINDING *
170RSA_setup_blinding(RSA *rsa, BN_CTX *in_ctx)
171{
172 BIGNUM *e;
173 BIGNUM n;
174 BN_CTX *ctx;
175 BN_BLINDING *ret = NULL;
176
177 if (in_ctx == NULL) {
178 if ((ctx = BN_CTX_new()) == NULL)
179 return 0;
180 } else
181 ctx = in_ctx;
182
183 BN_CTX_start(ctx);
184
185 if (rsa->e == NULL) {
186 e = rsa_get_public_exp(rsa->d, rsa->p, rsa->q, ctx);
187 if (e == NULL) {
188 RSAerr(RSA_F_RSA_SETUP_BLINDING,
189 RSA_R_NO_PUBLIC_EXPONENT);
190 goto err;
191 }
192 } else
193 e = rsa->e;
194
195 BN_init(&n);
196 BN_with_flags(&n, rsa->n, BN_FLG_CONSTTIME);
197
198 ret = BN_BLINDING_create_param(NULL, e, &n, ctx, rsa->meth->bn_mod_exp,
199 rsa->_method_mod_n);
200
201 if (ret == NULL) {
202 RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_BN_LIB);
203 goto err;
204 }
205 CRYPTO_THREADID_current(BN_BLINDING_thread_id(ret));
206err:
207 BN_CTX_end(ctx);
208 if (in_ctx == NULL)
209 BN_CTX_free(ctx);
210 if (rsa->e == NULL)
211 BN_free(e);
212
213 return ret;
214}
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-05-07 20:28:09 +0000