2 /* Written by Rob Stradling (rob@comodo.com) for the OpenSSL project 2014.
4 /* ====================================================================
5 * Copyright (c) 2014 The OpenSSL Project. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
19 * 3. All advertising materials mentioning features or use of this
20 * software must display the following acknowledgment:
21 * "This product includes software developed by the OpenSSL Project
22 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
25 * endorse or promote products derived from this software without
26 * prior written permission. For written permission, please contact
27 * licensing@OpenSSL.org.
29 * 5. Products derived from this software may not be called "OpenSSL"
30 * nor may "OpenSSL" appear in their names without prior written
31 * permission of the OpenSSL Project.
33 * 6. Redistributions of any form whatsoever must retain the following
35 * "This product includes software developed by the OpenSSL Project
36 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
39 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
41 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
42 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
43 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
44 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
45 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
47 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
48 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
49 * OF THE POSSIBILITY OF SUCH DAMAGE.
50 * ====================================================================
52 * This product includes cryptographic software written by Eric Young
53 * (eay@cryptsoft.com). This product includes software written by Tim
54 * Hudson (tjh@cryptsoft.com).
61 #include <openssl/asn1.h>
62 #include <openssl/x509v3.h>
63 #include <openssl/bn.h>
64 #include "../ssl/ssl_locl.h"
66 static int i2r_scts(X509V3_EXT_METHOD *method, ASN1_OCTET_STRING *oct, BIO *out, int indent);
68 const X509V3_EXT_METHOD v3_ct_scts[] = {
69 { NID_ct_precert_scts, 0, ASN1_ITEM_ref(ASN1_OCTET_STRING),
72 (X509V3_EXT_I2R)i2r_scts, NULL,
75 { NID_ct_cert_scts, 0, ASN1_ITEM_ref(ASN1_OCTET_STRING),
78 (X509V3_EXT_I2R)i2r_scts, NULL,
82 static void tls12_signature_print(BIO *out, const unsigned char *data)
85 /* RFC6962 only permits two signature algorithms */
86 if (data[0] == TLSEXT_hash_sha256)
88 if (data[1] == TLSEXT_signature_rsa)
89 nid = NID_sha256WithRSAEncryption;
90 else if (data[1] == TLSEXT_signature_ecdsa)
91 nid = NID_ecdsa_with_SHA256;
94 BIO_printf(out, "%02X%02X", data[0], data[1]);
96 BIO_printf(out, "%s", OBJ_nid2ln(nid));
99 static void timestamp_print(BIO *out, BN_ULLONG timestamp)
101 ASN1_GENERALIZEDTIME *gen;
103 gen = ASN1_GENERALIZEDTIME_new();
104 ASN1_GENERALIZEDTIME_adj(gen, (time_t)0,
105 timestamp / 86400000,
106 (timestamp % 86400000) / 1000);
107 /* Note GeneralizedTime from ASN1_GENERALIZETIME_adj is always 15
108 * characters long with a final Z. Update it with fractional seconds.
110 BIO_snprintf(genstr, sizeof(genstr), "%.14s.%03dZ",
111 ASN1_STRING_data(gen),
112 (unsigned int)(timestamp % 1000));
113 ASN1_GENERALIZEDTIME_set_string(gen, genstr);
114 ASN1_GENERALIZEDTIME_print(out, gen);
115 ASN1_GENERALIZEDTIME_free(gen);
118 static int i2r_scts(X509V3_EXT_METHOD *method, ASN1_OCTET_STRING *oct,
119 BIO *out, int indent)
122 unsigned char* data = oct->data;
123 unsigned short listlen, sctlen = 0, fieldlen;
128 if (listlen != oct->length - 2)
138 if ((sctlen < 1) || (sctlen > listlen))
142 BIO_printf(out, "%*sSigned Certificate Timestamp:", indent,
145 if (*data == 0) /* SCT v1 */
147 /* Fixed-length header:
149 * (1 byte) Version sct_version;
150 * (32 bytes) LogID id;
151 * (8 bytes) uint64 timestamp;
152 * (2 bytes + ?) CtExtensions extensions;
158 BIO_printf(out, "\n%*sVersion : v1(0)", indent + 4,
161 BIO_printf(out, "\n%*sLog ID : ", indent + 4, "");
162 BIO_hex_string(out, indent + 16, 16, data + 1, 32);
165 n2l8(data, timestamp);
166 BIO_printf(out, "\n%*sTimestamp : ", indent + 4, "");
167 timestamp_print(out, timestamp);
170 if (sctlen < fieldlen)
173 BIO_printf(out, "\n%*sExtensions: ", indent + 4, "");
175 BIO_printf(out, "none");
177 BIO_hex_string(out, indent + 16, 16, data,
181 /* digitally-signed struct header:
182 * (1 byte) Hash algorithm
183 * (1 byte) Signature algorithm
184 * (2 bytes + ?) Signature
190 BIO_printf(out, "\n%*sSignature : ", indent + 4, "");
191 tls12_signature_print(out, data);
194 if (sctlen != fieldlen)
196 BIO_printf(out, "\n%*s ", indent + 4, "");
197 BIO_hex_string(out, indent + 16, 16, data, fieldlen);
198 if (listlen > 0) BIO_printf(out, "\n");