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bn_blind.c

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1/* $OpenBSD: bn_blind.c,v 1.17 2017/01/29 17:49:22 beck Exp $ */-
2/* ====================================================================-
3 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.-
4 *-
5 * Redistribution and use in source and binary forms, with or without-
6 * modification, are permitted provided that the following conditions-
7 * are met:-
8 *-
9 * 1. Redistributions of source code must retain the above copyright-
10 * notice, this list of conditions and the following disclaimer.-
11 *-
12 * 2. Redistributions in binary form must reproduce the above copyright-
13 * notice, this list of conditions and the following disclaimer in-
14 * the documentation and/or other materials provided with the-
15 * distribution.-
16 *-
17 * 3. All advertising materials mentioning features or use of this-
18 * software must display the following acknowledgment:-
19 * "This product includes software developed by the OpenSSL Project-
20 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"-
21 *-
22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to-
23 * endorse or promote products derived from this software without-
24 * prior written permission. For written permission, please contact-
25 * openssl-core@openssl.org.-
26 *-
27 * 5. Products derived from this software may not be called "OpenSSL"-
28 * nor may "OpenSSL" appear in their names without prior written-
29 * permission of the OpenSSL Project.-
30 *-
31 * 6. Redistributions of any form whatsoever must retain the following-
32 * acknowledgment:-
33 * "This product includes software developed by the OpenSSL Project-
34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"-
35 *-
36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY-
37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE-
38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR-
39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR-
40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,-
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT-
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;-
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)-
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,-
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)-
46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED-
47 * OF THE POSSIBILITY OF SUCH DAMAGE.-
48 * ====================================================================-
49 *-
50 * This product includes cryptographic software written by Eric Young-
51 * (eay@cryptsoft.com). This product includes software written by Tim-
52 * Hudson (tjh@cryptsoft.com).-
53 *-
54 */-
55/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)-
56 * All rights reserved.-
57 *-
58 * This package is an SSL implementation written-
59 * by Eric Young (eay@cryptsoft.com).-
60 * The implementation was written so as to conform with Netscapes SSL.-
61 *-
62 * This library is free for commercial and non-commercial use as long as-
63 * the following conditions are aheared to. The following conditions-
64 * apply to all code found in this distribution, be it the RC4, RSA,-
65 * lhash, DES, etc., code; not just the SSL code. The SSL documentation-
66 * included with this distribution is covered by the same copyright terms-
67 * except that the holder is Tim Hudson (tjh@cryptsoft.com).-
68 *-
69 * Copyright remains Eric Young's, and as such any Copyright notices in-
70 * the code are not to be removed.-
71 * If this package is used in a product, Eric Young should be given attribution-
72 * as the author of the parts of the library used.-
73 * This can be in the form of a textual message at program startup or-
74 * in documentation (online or textual) provided with the package.-
75 *-
76 * Redistribution and use in source and binary forms, with or without-
77 * modification, are permitted provided that the following conditions-
78 * are met:-
79 * 1. Redistributions of source code must retain the copyright-
80 * notice, this list of conditions and the following disclaimer.-
81 * 2. Redistributions in binary form must reproduce the above copyright-
82 * notice, this list of conditions and the following disclaimer in the-
83 * documentation and/or other materials provided with the distribution.-
84 * 3. All advertising materials mentioning features or use of this software-
85 * must display the following acknowledgement:-
86 * "This product includes cryptographic software written by-
87 * Eric Young (eay@cryptsoft.com)"-
88 * The word 'cryptographic' can be left out if the rouines from the library-
89 * being used are not cryptographic related :-).-
90 * 4. If you include any Windows specific code (or a derivative thereof) from-
91 * the apps directory (application code) you must include an acknowledgement:-
92 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"-
93 *-
94 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND-
95 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE-
96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE-
97 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE-
98 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL-
99 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS-
100 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)-
101 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT-
102 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY-
103 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF-
104 * SUCH DAMAGE.-
105 *-
106 * The licence and distribution terms for any publically available version or-
107 * derivative of this code cannot be changed. i.e. this code cannot simply be-
108 * copied and put under another distribution licence-
109 * [including the GNU Public Licence.]-
110 */-
111-
112#include <stdio.h>-
113-
114#include <openssl/opensslconf.h>-
115-
116#include <openssl/err.h>-
117-
118#include "bn_lcl.h"-
119-
120#define BN_BLINDING_COUNTER 32-
121-
122struct bn_blinding_st {-
123 BIGNUM *A;-
124 BIGNUM *Ai;-
125 BIGNUM *e;-
126 BIGNUM *mod; /* just a reference */-
127#ifndef OPENSSL_NO_DEPRECATED-
128 unsigned long thread_id; /* added in OpenSSL 0.9.6j and 0.9.7b;-
129 * used only by crypto/rsa/rsa_eay.c, rsa_lib.c */-
130#endif-
131 CRYPTO_THREADID tid;-
132 int counter;-
133 unsigned long flags;-
134 BN_MONT_CTX *m_ctx;-
135 int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,-
136 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);-
137};-
138-
139BN_BLINDING *-
140BN_BLINDING_new(const BIGNUM *A, const BIGNUM *Ai, BIGNUM *mod)-
141{-
142 BN_BLINDING *ret = NULL;-
143-
144 bn_check_top(mod);-
145-
146 if ((ret = calloc(1, sizeof(BN_BLINDING))) == NULL) {
(ret = calloc(...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 67 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
0-67
147 BNerror(ERR_R_MALLOC_FAILURE);-
148 return (NULL);
never executed: return ( ((void *)0) );
0
149 }-
150 if (A != NULL) {
A != ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 67 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
0-67
151 if ((ret->A = BN_dup(A)) == NULL)
(ret->A = BN_d...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
152 goto err;
never executed: goto err;
0
153 }
never executed: end of block
0
154 if (Ai != NULL) {
Ai != ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 67 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
0-67
155 if ((ret->Ai = BN_dup(Ai)) == NULL)
(ret->Ai = BN_...== ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
156 goto err;
never executed: goto err;
0
157 }
never executed: end of block
0
158-
159 /* save a copy of mod in the BN_BLINDING structure */-
160 if ((ret->mod = BN_dup(mod)) == NULL)
(ret->mod = BN...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 67 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
0-67
161 goto err;
never executed: goto err;
0
162 if (BN_get_flags(mod, BN_FLG_CONSTTIME) != 0)
((mod)->flags&(0x04)) != 0Description
TRUEevaluated 67 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
FALSEnever evaluated
0-67
163 BN_set_flags(ret->mod, BN_FLG_CONSTTIME);
executed 67 times by 6 tests: ((ret->mod)->flags|=(0x04));
Executed by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
67
164-
165 /* Set the counter to the special value -1-
166 * to indicate that this is never-used fresh blinding-
167 * that does not need updating before first use. */-
168 ret->counter = -1;-
169 CRYPTO_THREADID_current(&ret->tid);-
170 return (ret);
executed 67 times by 6 tests: return (ret);
Executed by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
67
171-
172err:-
173 if (ret != NULL)
ret != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
174 BN_BLINDING_free(ret);
never executed: BN_BLINDING_free(ret);
0
175 return (NULL);
never executed: return ( ((void *)0) );
0
176}-
177-
178void-
179BN_BLINDING_free(BN_BLINDING *r)-
180{-
181 if (r == NULL)
r == ((void *)0)Description
TRUEevaluated 443 times by 6 tests
Evaluated by:
  • freenull
  • libcrypto.so.44.0.1
  • rsa_test
  • servertest
  • ssltest
  • tlstest
FALSEevaluated 66 times by 5 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • rsa_test
  • servertest
  • ssltest
  • tlstest
66-443
182 return;
executed 443 times by 6 tests: return;
Executed by:
  • freenull
  • libcrypto.so.44.0.1
  • rsa_test
  • servertest
  • ssltest
  • tlstest
443
183-
184 BN_clear_free(r->A);-
185 BN_clear_free(r->Ai);-
186 BN_clear_free(r->e);-
187 BN_clear_free(r->mod);-
188 free(r);-
189}
executed 66 times by 5 tests: end of block
Executed by:
  • libcrypto.so.44.0.1
  • rsa_test
  • servertest
  • ssltest
  • tlstest
66
190-
191int-
192BN_BLINDING_update(BN_BLINDING *b, BN_CTX *ctx)-
193{-
194 int ret = 0;-
195-
196 if ((b->A == NULL) || (b->Ai == NULL)) {
(b->A == ((void *)0) )Description
TRUEnever evaluated
FALSEevaluated 492 times by 2 tests
Evaluated by:
  • pkcs7test
  • rsa_test
(b->Ai == ((void *)0) )Description
TRUEnever evaluated
FALSEevaluated 492 times by 2 tests
Evaluated by:
  • pkcs7test
  • rsa_test
0-492
197 BNerror(BN_R_NOT_INITIALIZED);-
198 goto err;
never executed: goto err;
0
199 }-
200-
201 if (b->counter == -1)
b->counter == -1Description
TRUEnever evaluated
FALSEevaluated 492 times by 2 tests
Evaluated by:
  • pkcs7test
  • rsa_test
0-492
202 b->counter = 0;
never executed: b->counter = 0;
0
203-
204 if (++b->counter == BN_BLINDING_COUNTER && b->e != NULL &&
++b->counter == 32Description
TRUEevaluated 15 times by 1 test
Evaluated by:
  • rsa_test
FALSEevaluated 477 times by 2 tests
Evaluated by:
  • pkcs7test
  • rsa_test
b->e != ((void *)0)Description
TRUEevaluated 15 times by 1 test
Evaluated by:
  • rsa_test
FALSEnever evaluated
0-477
205 !(b->flags & BN_BLINDING_NO_RECREATE)) {
!(b->flags & 0x00000002)Description
TRUEevaluated 15 times by 1 test
Evaluated by:
  • rsa_test
FALSEnever evaluated
0-15
206 /* re-create blinding parameters */-
207 if (!BN_BLINDING_create_param(b, NULL, NULL, ctx, NULL, NULL))
!BN_BLINDING_c... ((void *)0) )Description
TRUEnever evaluated
FALSEevaluated 15 times by 1 test
Evaluated by:
  • rsa_test
0-15
208 goto err;
never executed: goto err;
0
209 } else if (!(b->flags & BN_BLINDING_NO_UPDATE)) {
executed 15 times by 1 test: end of block
Executed by:
  • rsa_test
!(b->flags & 0x00000001)Description
TRUEevaluated 477 times by 2 tests
Evaluated by:
  • pkcs7test
  • rsa_test
FALSEnever evaluated
0-477
210 if (!BN_mod_mul(b->A, b->A, b->A, b->mod, ctx))
!BN_mod_mul(b-..., b->mod, ctx)Description
TRUEnever evaluated
FALSEevaluated 477 times by 2 tests
Evaluated by:
  • pkcs7test
  • rsa_test
0-477
211 goto err;
never executed: goto err;
0
212 if (!BN_mod_mul(b->Ai, b->Ai, b->Ai, b->mod, ctx))
!BN_mod_mul(b-..., b->mod, ctx)Description
TRUEnever evaluated
FALSEevaluated 477 times by 2 tests
Evaluated by:
  • pkcs7test
  • rsa_test
0-477
213 goto err;
never executed: goto err;
0
214 }
executed 477 times by 2 tests: end of block
Executed by:
  • pkcs7test
  • rsa_test
477
215-
216 ret = 1;-
217-
218err:
code before this statement executed 492 times by 2 tests: err:
Executed by:
  • pkcs7test
  • rsa_test
492
219 if (b->counter == BN_BLINDING_COUNTER)
b->counter == 32Description
TRUEevaluated 15 times by 1 test
Evaluated by:
  • rsa_test
FALSEevaluated 477 times by 2 tests
Evaluated by:
  • pkcs7test
  • rsa_test
15-477
220 b->counter = 0;
executed 15 times by 1 test: b->counter = 0;
Executed by:
  • rsa_test
15
221 return (ret);
executed 492 times by 2 tests: return (ret);
Executed by:
  • pkcs7test
  • rsa_test
492
222}-
223-
224int-
225BN_BLINDING_convert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx)-
226{-
227 return BN_BLINDING_convert_ex(n, NULL, b, ctx);
never executed: return BN_BLINDING_convert_ex(n, ((void *)0) , b, ctx);
0
228}-
229-
230int-
231BN_BLINDING_convert_ex(BIGNUM *n, BIGNUM *r, BN_BLINDING *b, BN_CTX *ctx)-
232{-
233 int ret = 1;-
234-
235 bn_check_top(n);-
236-
237 if ((b->A == NULL) || (b->Ai == NULL)) {
(b->A == ((void *)0) )Description
TRUEnever evaluated
FALSEevaluated 559 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
(b->Ai == ((void *)0) )Description
TRUEnever evaluated
FALSEevaluated 559 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
0-559
238 BNerror(BN_R_NOT_INITIALIZED);-
239 return (0);
never executed: return (0);
0
240 }-
241-
242 if (b->counter == -1)
b->counter == -1Description
TRUEevaluated 67 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
FALSEevaluated 492 times by 2 tests
Evaluated by:
  • pkcs7test
  • rsa_test
67-492
243 /* Fresh blinding, doesn't need updating. */-
244 b->counter = 0;
executed 67 times by 6 tests: b->counter = 0;
Executed by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
67
245 else if (!BN_BLINDING_update(b, ctx))
!BN_BLINDING_update(b, ctx)Description
TRUEnever evaluated
FALSEevaluated 492 times by 2 tests
Evaluated by:
  • pkcs7test
  • rsa_test
0-492
246 return (0);
never executed: return (0);
0
247-
248 if (r != NULL) {
r != ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 559 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
0-559
249 if (!BN_copy(r, b->Ai))
!BN_copy(r, b->Ai)Description
TRUEnever evaluated
FALSEnever evaluated
0
250 ret = 0;
never executed: ret = 0;
0
251 }
never executed: end of block
0
252-
253 if (!BN_mod_mul(n, n,b->A, b->mod, ctx))
!BN_mod_mul(n,..., b->mod, ctx)Description
TRUEnever evaluated
FALSEevaluated 559 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
0-559
254 ret = 0;
never executed: ret = 0;
0
255-
256 return ret;
executed 559 times by 6 tests: return ret;
Executed by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
559
257}-
258-
259int-
260BN_BLINDING_invert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx)-
261{-
262 return BN_BLINDING_invert_ex(n, NULL, b, ctx);
never executed: return BN_BLINDING_invert_ex(n, ((void *)0) , b, ctx);
0
263}-
264-
265int-
266BN_BLINDING_invert_ex(BIGNUM *n, const BIGNUM *r, BN_BLINDING *b, BN_CTX *ctx)-
267{-
268 int ret;-
269-
270 bn_check_top(n);-
271-
272 if (r != NULL)
r != ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 559 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
0-559
273 ret = BN_mod_mul(n, n, r, b->mod, ctx);
never executed: ret = BN_mod_mul(n, n, r, b->mod, ctx);
0
274 else {-
275 if (b->Ai == NULL) {
b->Ai == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 559 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
0-559
276 BNerror(BN_R_NOT_INITIALIZED);-
277 return (0);
never executed: return (0);
0
278 }-
279 ret = BN_mod_mul(n, n, b->Ai, b->mod, ctx);-
280 }
executed 559 times by 6 tests: end of block
Executed by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
559
281-
282 bn_check_top(n);-
283 return (ret);
executed 559 times by 6 tests: return (ret);
Executed by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
559
284}-
285-
286#ifndef OPENSSL_NO_DEPRECATED-
287unsigned long-
288BN_BLINDING_get_thread_id(const BN_BLINDING *b)-
289{-
290 return b->thread_id;
never executed: return b->thread_id;
0
291}-
292-
293void-
294BN_BLINDING_set_thread_id(BN_BLINDING *b, unsigned long n)-
295{-
296 b->thread_id = n;-
297}
never executed: end of block
0
298#endif-
299-
300CRYPTO_THREADID *-
301BN_BLINDING_thread_id(BN_BLINDING *b)-
302{-
303 return &b->tid;
executed 626 times by 6 tests: return &b->tid;
Executed by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
626
304}-
305-
306unsigned long-
307BN_BLINDING_get_flags(const BN_BLINDING *b)-
308{-
309 return b->flags;
never executed: return b->flags;
0
310}-
311-
312void-
313BN_BLINDING_set_flags(BN_BLINDING *b, unsigned long flags)-
314{-
315 b->flags = flags;-
316}
never executed: end of block
0
317-
318BN_BLINDING *-
319BN_BLINDING_create_param(BN_BLINDING *b, const BIGNUM *e, BIGNUM *m,-
320 BN_CTX *ctx, int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,-
321 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx), BN_MONT_CTX *m_ctx)-
322{-
323 int retry_counter = 32;-
324 BN_BLINDING *ret = NULL;-
325-
326 if (b == NULL)
b == ((void *)0)Description
TRUEevaluated 67 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
FALSEevaluated 15 times by 1 test
Evaluated by:
  • rsa_test
15-67
327 ret = BN_BLINDING_new(NULL, NULL, m);
executed 67 times by 6 tests: ret = BN_BLINDING_new( ((void *)0) , ((void *)0) , m);
Executed by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
67
328 else-
329 ret = b;
executed 15 times by 1 test: ret = b;
Executed by:
  • rsa_test
15
330-
331 if (ret == NULL)
ret == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 82 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
0-82
332 goto err;
never executed: goto err;
0
333-
334 if (ret->A == NULL && (ret->A = BN_new()) == NULL)
ret->A == ((void *)0)Description
TRUEevaluated 67 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
FALSEevaluated 15 times by 1 test
Evaluated by:
  • rsa_test
(ret->A = BN_n...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 67 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
0-67
335 goto err;
never executed: goto err;
0
336 if (ret->Ai == NULL && (ret->Ai = BN_new()) == NULL)
ret->Ai == ((void *)0)Description
TRUEevaluated 67 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
FALSEevaluated 15 times by 1 test
Evaluated by:
  • rsa_test
(ret->Ai = BN_...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 67 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
0-67
337 goto err;
never executed: goto err;
0
338-
339 if (e != NULL) {
e != ((void *)0)Description
TRUEevaluated 67 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
FALSEevaluated 15 times by 1 test
Evaluated by:
  • rsa_test
15-67
340 BN_free(ret->e);-
341 ret->e = BN_dup(e);-
342 }
executed 67 times by 6 tests: end of block
Executed by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
67
343 if (ret->e == NULL)
ret->e == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 82 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
0-82
344 goto err;
never executed: goto err;
0
345-
346 if (bn_mod_exp != NULL)
bn_mod_exp != ((void *)0)Description
TRUEevaluated 67 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
FALSEevaluated 15 times by 1 test
Evaluated by:
  • rsa_test
15-67
347 ret->bn_mod_exp = bn_mod_exp;
executed 67 times by 6 tests: ret->bn_mod_exp = bn_mod_exp;
Executed by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
67
348 if (m_ctx != NULL)
m_ctx != ((void *)0)Description
TRUEevaluated 3 times by 1 test
Evaluated by:
  • rsa_test
FALSEevaluated 79 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
3-79
349 ret->m_ctx = m_ctx;
executed 3 times by 1 test: ret->m_ctx = m_ctx;
Executed by:
  • rsa_test
3
350-
351 do {-
352 if (!BN_rand_range(ret->A, ret->mod))
!BN_rand_range...->A, ret->mod)Description
TRUEnever evaluated
FALSEevaluated 82 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
0-82
353 goto err;
never executed: goto err;
0
354 if (BN_mod_inverse_ct(ret->Ai, ret->A, ret->mod, ctx) == NULL) {
BN_mod_inverse...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 82 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
0-82
355 /* this should almost never happen for good RSA keys */-
356 unsigned long error = ERR_peek_last_error();-
357 if (ERR_GET_REASON(error) == BN_R_NO_INVERSE) {
(int)((error)&0xfffL) == 108Description
TRUEnever evaluated
FALSEnever evaluated
0
358 if (retry_counter-- == 0) {
retry_counter-- == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
359 BNerror(BN_R_TOO_MANY_ITERATIONS);-
360 goto err;
never executed: goto err;
0
361 }-
362 ERR_clear_error();-
363 } else
never executed: end of block
0
364 goto err;
never executed: goto err;
0
365 } else-
366 break;
executed 82 times by 6 tests: break;
Executed by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
82
367 } while (1);-
368-
369 if (ret->bn_mod_exp != NULL && ret->m_ctx != NULL) {
ret->bn_mod_exp != ((void *)0)Description
TRUEevaluated 82 times by 6 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
FALSEnever evaluated
ret->m_ctx != ((void *)0)Description
TRUEevaluated 18 times by 1 test
Evaluated by:
  • rsa_test
FALSEevaluated 64 times by 5 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
0-82
370 if (!ret->bn_mod_exp(ret->A, ret->A, ret->e, ret->mod,
!ret->bn_mod_e...x, ret->m_ctx)Description
TRUEnever evaluated
FALSEevaluated 18 times by 1 test
Evaluated by:
  • rsa_test
0-18
371 ctx, ret->m_ctx))
!ret->bn_mod_e...x, ret->m_ctx)Description
TRUEnever evaluated
FALSEevaluated 18 times by 1 test
Evaluated by:
  • rsa_test
0-18
372 goto err;
never executed: goto err;
0
373 } else {
executed 18 times by 1 test: end of block
Executed by:
  • rsa_test
18
374 if (!BN_mod_exp_ct(ret->A, ret->A, ret->e, ret->mod, ctx))
!BN_mod_exp_ct...ret->mod, ctx)Description
TRUEnever evaluated
FALSEevaluated 64 times by 5 tests
Evaluated by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
0-64
375 goto err;
never executed: goto err;
0
376 }
executed 64 times by 5 tests: end of block
Executed by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • servertest
  • ssltest
  • tlstest
64
377-
378 return ret;
executed 82 times by 6 tests: return ret;
Executed by:
  • libcrypto.so.44.0.1
  • pkcs7test
  • rsa_test
  • servertest
  • ssltest
  • tlstest
82
379-
380err:-
381 if (b == NULL && ret != NULL) {
b == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
ret != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
382 BN_BLINDING_free(ret);-
383 ret = NULL;-
384 }
never executed: end of block
0
385-
386 return ret;
never executed: return ret;
0
387}-
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