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Diffstat (limited to 'src/lib/libcrypto/ct/ct_b64.c')
-rw-r--r--src/lib/libcrypto/ct/ct_b64.c226
1 files changed, 0 insertions, 226 deletions
diff --git a/src/lib/libcrypto/ct/ct_b64.c b/src/lib/libcrypto/ct/ct_b64.c
deleted file mode 100644
index 101cd1e2b1..0000000000
--- a/src/lib/libcrypto/ct/ct_b64.c
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@@ -1,226 +0,0 @@
1/* $OpenBSD: ct_b64.c,v 1.7 2023/07/08 07:22:58 beck Exp $ */
2/*
3 * Written by Rob Stradling (rob@comodo.com) and Stephen Henson
4 * (steve@openssl.org) for the OpenSSL project 2014.
5 */
6/* ====================================================================
7 * Copyright (c) 2014 The OpenSSL Project. All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
19 * distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 * acknowledgment:
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 *
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com). This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
57 *
58 */
59
60#include <limits.h>
61#include <string.h>
62
63#include <openssl/ct.h>
64#include <openssl/err.h>
65#include <openssl/evp.h>
66
67#include "bytestring.h"
68#include "ct_local.h"
69
70/*
71 * Decodes the base64 string |in| into |out|.
72 * A new string will be malloc'd and assigned to |out|. This will be owned by
73 * the caller. Do not provide a pre-allocated string in |out|.
74 */
75static int
76ct_base64_decode(const char *in, unsigned char **out)
77{
78 size_t inlen = strlen(in);
79 int outlen, i;
80 unsigned char *outbuf = NULL;
81
82 if (inlen == 0) {
83 *out = NULL;
84 return 0;
85 }
86
87 outlen = (inlen / 4) * 3;
88 outbuf = malloc(outlen);
89 if (outbuf == NULL) {
90 CTerror(ERR_R_MALLOC_FAILURE);
91 goto err;
92 }
93
94 outlen = EVP_DecodeBlock(outbuf, (unsigned char *)in, inlen);
95 if (outlen < 0) {
96 CTerror(CT_R_BASE64_DECODE_ERROR);
97 goto err;
98 }
99
100 /*
101 * Subtract padding bytes from |outlen|.
102 * Any more than 2 is malformed.
103 */
104 i = 0;
105 while (in[--inlen] == '=') {
106 --outlen;
107 if (++i > 2)
108 goto err;
109 }
110
111 *out = outbuf;
112 return outlen;
113 err:
114 free(outbuf);
115 return -1;
116}
117
118SCT *
119SCT_new_from_base64(unsigned char version, const char *logid_base64,
120 ct_log_entry_type_t entry_type, uint64_t timestamp,
121 const char *extensions_base64, const char *signature_base64)
122{
123 unsigned char *dec = NULL;
124 int declen;
125 SCT *sct;
126 CBS cbs;
127
128 if ((sct = SCT_new()) == NULL) {
129 CTerror(ERR_R_MALLOC_FAILURE);
130 return NULL;
131 }
132
133 /*
134 * RFC6962 section 4.1 says we "MUST NOT expect this to be 0", but we
135 * can only construct SCT versions that have been defined.
136 */
137 if (!SCT_set_version(sct, version)) {
138 CTerror(CT_R_SCT_UNSUPPORTED_VERSION);
139 goto err;
140 }
141
142 declen = ct_base64_decode(logid_base64, &dec);
143 if (declen < 0) {
144 CTerror(X509_R_BASE64_DECODE_ERROR);
145 goto err;
146 }
147 if (!SCT_set0_log_id(sct, dec, declen))
148 goto err;
149 dec = NULL;
150
151 declen = ct_base64_decode(extensions_base64, &dec);
152 if (declen < 0) {
153 CTerror(X509_R_BASE64_DECODE_ERROR);
154 goto err;
155 }
156 SCT_set0_extensions(sct, dec, declen);
157 dec = NULL;
158
159 declen = ct_base64_decode(signature_base64, &dec);
160 if (declen < 0) {
161 CTerror(X509_R_BASE64_DECODE_ERROR);
162 goto err;
163 }
164
165 CBS_init(&cbs, dec, declen);
166 if (!o2i_SCT_signature(sct, &cbs))
167 goto err;
168 free(dec);
169 dec = NULL;
170
171 SCT_set_timestamp(sct, timestamp);
172
173 if (!SCT_set_log_entry_type(sct, entry_type))
174 goto err;
175
176 return sct;
177
178 err:
179 free(dec);
180 SCT_free(sct);
181 return NULL;
182}
183LCRYPTO_ALIAS(SCT_new_from_base64);
184
185/*
186 * Allocate, build and returns a new |ct_log| from input |pkey_base64|
187 * It returns 1 on success,
188 * 0 on decoding failure, or invalid parameter if any
189 * -1 on internal (malloc) failure
190 */
191int
192CTLOG_new_from_base64(CTLOG **ct_log, const char *pkey_base64, const char *name)
193{
194 unsigned char *pkey_der = NULL;
195 int pkey_der_len;
196 const unsigned char *p;
197 EVP_PKEY *pkey = NULL;
198
199 if (ct_log == NULL) {
200 CTerror(ERR_R_PASSED_NULL_PARAMETER);
201 return 0;
202 }
203
204 pkey_der_len = ct_base64_decode(pkey_base64, &pkey_der);
205 if (pkey_der_len < 0) {
206 CTerror(CT_R_LOG_CONF_INVALID_KEY);
207 return 0;
208 }
209
210 p = pkey_der;
211 pkey = d2i_PUBKEY(NULL, &p, pkey_der_len);
212 free(pkey_der);
213 if (pkey == NULL) {
214 CTerror(CT_R_LOG_CONF_INVALID_KEY);
215 return 0;
216 }
217
218 *ct_log = CTLOG_new(pkey, name);
219 if (*ct_log == NULL) {
220 EVP_PKEY_free(pkey);
221 return 0;
222 }
223
224 return 1;
225}
226LCRYPTO_ALIAS(CTLOG_new_from_base64);
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