OpenCoverage

hm_ameth.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/hmac/hm_ameth.c
Source codeSwitch to Preprocessed file
LineSourceCount
1/* $OpenBSD: hm_ameth.c,v 1.10 2015/09/10 15:56:25 jsing Exp $ */-
2/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL-
3 * project 2007.-
4 */-
5/* ====================================================================-
6 * Copyright (c) 2007 The OpenSSL Project. All rights reserved.-
7 *-
8 * Redistribution and use in source and binary forms, with or without-
9 * modification, are permitted provided that the following conditions-
10 * are met:-
11 *-
12 * 1. Redistributions of source code must retain the above copyright-
13 * notice, this list of conditions and the following disclaimer.-
14 *-
15 * 2. Redistributions in binary form must reproduce the above copyright-
16 * notice, this list of conditions and the following disclaimer in-
17 * the documentation and/or other materials provided with the-
18 * distribution.-
19 *-
20 * 3. All advertising materials mentioning features or use of this-
21 * software must display the following acknowledgment:-
22 * "This product includes software developed by the OpenSSL Project-
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"-
24 *-
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to-
26 * endorse or promote products derived from this software without-
27 * prior written permission. For written permission, please contact-
28 * licensing@OpenSSL.org.-
29 *-
30 * 5. Products derived from this software may not be called "OpenSSL"-
31 * nor may "OpenSSL" appear in their names without prior written-
32 * permission of the OpenSSL Project.-
33 *-
34 * 6. Redistributions of any form whatsoever must retain the following-
35 * acknowledgment:-
36 * "This product includes software developed by the OpenSSL Project-
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"-
38 *-
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY-
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE-
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR-
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR-
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,-
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT-
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;-
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)-
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,-
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)-
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED-
50 * OF THE POSSIBILITY OF SUCH DAMAGE.-
51 * ====================================================================-
52 *-
53 * This product includes cryptographic software written by Eric Young-
54 * (eay@cryptsoft.com). This product includes software written by Tim-
55 * Hudson (tjh@cryptsoft.com).-
56 *-
57 */-
58-
59#include <stdio.h>-
60#include <string.h>-
61-
62#include <openssl/evp.h>-
63-
64#include "asn1_locl.h"-
65-
66#define HMAC_TEST_PRIVATE_KEY_FORMAT-
67-
68/* HMAC "ASN1" method. This is just here to indicate the-
69 * maximum HMAC output length and to free up an HMAC-
70 * key.-
71 */-
72-
73static int-
74hmac_size(const EVP_PKEY *pkey)-
75{-
76 return EVP_MAX_MD_SIZE;
never executed: return 64;
0
77}-
78-
79static void-
80hmac_key_free(EVP_PKEY *pkey)-
81{-
82 ASN1_OCTET_STRING *os = (ASN1_OCTET_STRING *)pkey->pkey.ptr;-
83-
84 if (os) {
osDescription
TRUEevaluated 1804 times by 3 tests
Evaluated by:
  • ssltest
  • tls_prf
  • tlstest
FALSEnever evaluated
0-1804
85 if (os->data)
os->dataDescription
TRUEevaluated 1804 times by 3 tests
Evaluated by:
  • ssltest
  • tls_prf
  • tlstest
FALSEnever evaluated
0-1804
86 explicit_bzero(os->data, os->length);
executed 1804 times by 3 tests: explicit_bzero(os->data, os->length);
Executed by:
  • ssltest
  • tls_prf
  • tlstest
1804
87 ASN1_OCTET_STRING_free(os);-
88 }
executed 1804 times by 3 tests: end of block
Executed by:
  • ssltest
  • tls_prf
  • tlstest
1804
89}
executed 1804 times by 3 tests: end of block
Executed by:
  • ssltest
  • tls_prf
  • tlstest
1804
90-
91static int-
92hmac_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2)-
93{-
94 switch (op) {-
95 case ASN1_PKEY_CTRL_DEFAULT_MD_NID:
never executed: case 0x3:
0
96 *(int *)arg2 = NID_sha1;-
97 return 1;
never executed: return 1;
0
98 default:
never executed: default:
0
99 return -2;
never executed: return -2;
0
100 }-
101}-
102-
103#ifdef HMAC_TEST_PRIVATE_KEY_FORMAT-
104/* A bogus private key format for test purposes. This is simply the-
105 * HMAC key with "HMAC PRIVATE KEY" in the headers. When enabled the-
106 * genpkey utility can be used to "generate" HMAC keys.-
107 */-
108-
109static int-
110old_hmac_decode(EVP_PKEY *pkey, const unsigned char **pder, int derlen)-
111{-
112 ASN1_OCTET_STRING *os;-
113-
114 os = ASN1_OCTET_STRING_new();-
115 if (os == NULL)
os == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
116 goto err;
never executed: goto err;
0
117 if (ASN1_OCTET_STRING_set(os, *pder, derlen) == 0)
ASN1_OCTET_STR..., derlen) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
118 goto err;
never executed: goto err;
0
119 if (EVP_PKEY_assign(pkey, EVP_PKEY_HMAC, os) == 0)
EVP_PKEY_assig... 855, os) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
120 goto err;
never executed: goto err;
0
121 return 1;
never executed: return 1;
0
122-
123err:-
124 ASN1_OCTET_STRING_free(os);-
125 return 0;
never executed: return 0;
0
126}-
127-
128static int-
129old_hmac_encode(const EVP_PKEY *pkey, unsigned char **pder)-
130{-
131 int inc;-
132 ASN1_OCTET_STRING *os = (ASN1_OCTET_STRING *)pkey->pkey.ptr;-
133-
134 if (pder) {
pderDescription
TRUEnever evaluated
FALSEnever evaluated
0
135 if (!*pder) {
!*pderDescription
TRUEnever evaluated
FALSEnever evaluated
0
136 *pder = malloc(os->length);-
137 if (*pder == NULL)
*pder == ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
138 return -1;
never executed: return -1;
0
139 inc = 0;-
140 } else
never executed: end of block
0
141 inc = 1;
never executed: inc = 1;
0
142-
143 memcpy(*pder, os->data, os->length);-
144-
145 if (inc)
incDescription
TRUEnever evaluated
FALSEnever evaluated
0
146 *pder += os->length;
never executed: *pder += os->length;
0
147 }
never executed: end of block
0
148-
149 return os->length;
never executed: return os->length;
0
150}-
151-
152#endif-
153-
154const EVP_PKEY_ASN1_METHOD hmac_asn1_meth = {-
155 .pkey_id = EVP_PKEY_HMAC,-
156 .pkey_base_id = EVP_PKEY_HMAC,-
157-
158 .pem_str = "HMAC",-
159 .info = "OpenSSL HMAC method",-
160-
161 .pkey_size = hmac_size,-
162-
163 .pkey_free = hmac_key_free,-
164 .pkey_ctrl = hmac_pkey_ctrl,-
165#ifdef HMAC_TEST_PRIVATE_KEY_FORMAT-
166 .old_priv_decode = old_hmac_decode,-
167 .old_priv_encode = old_hmac_encode-
168#endif-
169};-
Source codeSwitch to Preprocessed file
Generated by Squish Coco 4.2.2