+++ /dev/null
-/*
- * Written by Rob Stradling (rob@comodo.com) for the OpenSSL project 2014.
- */
-/* ====================================================================
- * Copyright (c) 2014 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
-
-#include <stdio.h>
-#include "internal/cryptlib.h"
-#include <openssl/asn1.h>
-#include <openssl/x509v3.h>
-#include "ext_dat.h"
-#include "internal/ct_int.h"
-
-#ifndef OPENSSL_NO_CT
-/* Signature and hash algorithms from RFC 5246 */
-#define TLSEXT_hash_sha256 4
-
-#define TLSEXT_signature_rsa 1
-#define TLSEXT_signature_ecdsa 3
-
-
-#define n2s(c,s) ((s=(((unsigned int)(c[0]))<< 8)| \
- (((unsigned int)(c[1])) )),c+=2)
-
-#define n2l8(c,l) (l =((uint64_t)(*((c)++)))<<56, \
- l|=((uint64_t)(*((c)++)))<<48, \
- l|=((uint64_t)(*((c)++)))<<40, \
- l|=((uint64_t)(*((c)++)))<<32, \
- l|=((uint64_t)(*((c)++)))<<24, \
- l|=((uint64_t)(*((c)++)))<<16, \
- l|=((uint64_t)(*((c)++)))<< 8, \
- l|=((uint64_t)(*((c)++))))
-
-
-static void SCT_LIST_free(STACK_OF(SCT) *a);
-static STACK_OF(SCT) *d2i_SCT_LIST(STACK_OF(SCT) **a,
- const unsigned char **pp, long length);
-static int i2r_SCT_LIST(X509V3_EXT_METHOD *method, STACK_OF(SCT) *sct_list,
- BIO *out, int indent);
-
-const X509V3_EXT_METHOD v3_ct_scts[] = {
- {NID_ct_precert_scts, 0, NULL,
- 0, (X509V3_EXT_FREE)SCT_LIST_free,
- (X509V3_EXT_D2I)d2i_SCT_LIST, 0,
- 0, 0, 0, 0,
- (X509V3_EXT_I2R)i2r_SCT_LIST, 0,
- NULL},
-
- {NID_ct_cert_scts, 0, NULL,
- 0, (X509V3_EXT_FREE)SCT_LIST_free,
- (X509V3_EXT_D2I)d2i_SCT_LIST, 0,
- 0, 0, 0, 0,
- (X509V3_EXT_I2R)i2r_SCT_LIST, 0,
- NULL},
-};
-
-static void tls12_signature_print(BIO *out, const unsigned char hash_alg,
- const unsigned char sig_alg)
-{
- int nid = NID_undef;
- /* RFC6962 only permits two signature algorithms */
- if (hash_alg == TLSEXT_hash_sha256) {
- if (sig_alg == TLSEXT_signature_rsa)
- nid = NID_sha256WithRSAEncryption;
- else if (sig_alg == TLSEXT_signature_ecdsa)
- nid = NID_ecdsa_with_SHA256;
- }
- if (nid == NID_undef)
- BIO_printf(out, "%02X%02X", hash_alg, sig_alg);
- else
- BIO_printf(out, "%s", OBJ_nid2ln(nid));
-}
-
-static void timestamp_print(BIO *out, uint64_t timestamp)
-{
- ASN1_GENERALIZEDTIME *gen;
- char genstr[20];
- gen = ASN1_GENERALIZEDTIME_new();
- ASN1_GENERALIZEDTIME_adj(gen, (time_t)0,
- (int)(timestamp / 86400000),
- (timestamp % 86400000) / 1000);
- /*
- * Note GeneralizedTime from ASN1_GENERALIZETIME_adj is always 15
- * characters long with a final Z. Update it with fractional seconds.
- */
- BIO_snprintf(genstr, sizeof(genstr), "%.14s.%03dZ",
- ASN1_STRING_data(gen), (unsigned int)(timestamp % 1000));
- ASN1_GENERALIZEDTIME_set_string(gen, genstr);
- ASN1_GENERALIZEDTIME_print(out, gen);
- ASN1_GENERALIZEDTIME_free(gen);
-}
-
-static void SCT_LIST_free(STACK_OF(SCT) *a)
-{
- sk_SCT_pop_free(a, SCT_free);
-}
-
-static STACK_OF(SCT) *d2i_SCT_LIST(STACK_OF(SCT) **a,
- const unsigned char **pp, long length)
-{
- ASN1_OCTET_STRING *oct = NULL;
- STACK_OF(SCT) *sk = NULL;
- SCT *sct;
- unsigned char *p, *p2;
- unsigned short listlen, sctlen = 0, fieldlen;
- const unsigned char *q = *pp;
-
- if (d2i_ASN1_OCTET_STRING(&oct, &q, length) == NULL)
- return NULL;
- if (oct->length < 2)
- goto done;
- p = oct->data;
- n2s(p, listlen);
- if (listlen != oct->length - 2)
- goto done;
-
- if ((sk = sk_SCT_new_null()) == NULL)
- goto done;
-
- while (listlen > 0) {
- if (listlen < 2)
- goto err;
- n2s(p, sctlen);
- listlen -= 2;
-
- if ((sctlen < 1) || (sctlen > listlen))
- goto err;
- listlen -= sctlen;
-
- sct = OPENSSL_malloc(sizeof(*sct));
- if (sct == NULL)
- goto err;
- if (!sk_SCT_push(sk, sct)) {
- OPENSSL_free(sct);
- goto err;
- }
-
- sct->sct = OPENSSL_malloc(sctlen);
- if (sct->sct == NULL)
- goto err;
- memcpy(sct->sct, p, sctlen);
- sct->sct_len = sctlen;
- p += sctlen;
- p2 = sct->sct;
-
- sct->version = *p2++;
- if (sct->version == 0) { /* SCT v1 */
- /*-
- * Fixed-length header:
- * struct {
- * (1 byte) Version sct_version;
- * (32 bytes) LogID id;
- * (8 bytes) uint64 timestamp;
- * (2 bytes + ?) CtExtensions extensions;
- */
- if (sctlen < 43)
- goto err;
- sctlen -= 43;
-
- sct->log_id = p2;
- sct->log_id_len = 32;
- p2 += 32;
-
- n2l8(p2, sct->timestamp);
-
- n2s(p2, fieldlen);
- if (sctlen < fieldlen)
- goto err;
- sct->ext = p2;
- sct->ext_len = fieldlen;
- p2 += fieldlen;
- sctlen -= fieldlen;
-
- /*-
- * digitally-signed struct header:
- * (1 byte) Hash algorithm
- * (1 byte) Signature algorithm
- * (2 bytes + ?) Signature
- */
- if (sctlen < 4)
- goto err;
- sctlen -= 4;
-
- sct->hash_alg = *p2++;
- sct->sig_alg = *p2++;
- n2s(p2, fieldlen);
- if (sctlen != fieldlen)
- goto err;
- sct->sig = p2;
- sct->sig_len = fieldlen;
- }
- }
-
- done:
- ASN1_OCTET_STRING_free(oct);
- *pp = q;
- return sk;
-
- err:
- SCT_LIST_free(sk);
- sk = NULL;
- goto done;
-}
-
-static int i2r_SCT_LIST(X509V3_EXT_METHOD *method, STACK_OF(SCT) *sct_list,
- BIO *out, int indent)
-{
- SCT *sct;
- int i;
-
- for (i = 0; i < sk_SCT_num(sct_list);) {
- sct = sk_SCT_value(sct_list, i);
-
- BIO_printf(out, "%*sSigned Certificate Timestamp:", indent, "");
- BIO_printf(out, "\n%*sVersion : ", indent + 4, "");
-
- if (sct->version == 0) { /* SCT v1 */
- BIO_printf(out, "v1(0)");
-
- BIO_printf(out, "\n%*sLog ID : ", indent + 4, "");
- BIO_hex_string(out, indent + 16, 16, sct->log_id, sct->log_id_len);
-
- BIO_printf(out, "\n%*sTimestamp : ", indent + 4, "");
- timestamp_print(out, sct->timestamp);
-
- BIO_printf(out, "\n%*sExtensions: ", indent + 4, "");
- if (sct->ext_len == 0)
- BIO_printf(out, "none");
- else
- BIO_hex_string(out, indent + 16, 16, sct->ext, sct->ext_len);
-
- BIO_printf(out, "\n%*sSignature : ", indent + 4, "");
- tls12_signature_print(out, sct->hash_alg, sct->sig_alg);
- BIO_printf(out, "\n%*s ", indent + 4, "");
- BIO_hex_string(out, indent + 16, 16, sct->sig, sct->sig_len);
- } else { /* Unknown version */
-
- BIO_printf(out, "unknown\n%*s", indent + 16, "");
- BIO_hex_string(out, indent + 16, 16, sct->sct, sct->sct_len);
- }
-
- if (++i < sk_SCT_num(sct_list))
- BIO_printf(out, "\n");
- }
-
- return 1;
-}
-#endif
projects / openssl.git / blobdiff