Show the contents of the RFC6962 Signed Certificate Timestamp List Certificate/OCSP Extensions.

Add the RFC6962 OIDs to the objects table.
(backport from master branch)

1 files changed, 204 insertions, 0 deletions

diff --git a/crypto/x509v3/v3_scts.c b/crypto/x509v3/v3_scts.c
new file mode 100644
index 0000000000..c6ef0dc901
--- /dev/null
+++ b/crypto/x509v3/v3_scts.c
@@ -0,0 +1,204 @@
+/* v3_scts.c */
+/* 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 "cryptlib.h"
+#include <openssl/asn1.h>
+#include <openssl/x509v3.h>
+#include <openssl/bn.h>
+#include "../ssl/ssl_locl.h"
+
+static int i2r_scts(X509V3_EXT_METHOD *method, ASN1_OCTET_STRING *oct, BIO *out, int indent);
+
+const X509V3_EXT_METHOD v3_ct_scts[] = {
+{ NID_ct_precert_scts, 0, ASN1_ITEM_ref(ASN1_OCTET_STRING),
+0,0,0,0,
+0,0,0,0,
+(X509V3_EXT_I2R)i2r_scts, NULL,
+NULL},
+
+{ NID_ct_cert_scts, 0, ASN1_ITEM_ref(ASN1_OCTET_STRING),
+0,0,0,0,
+0,0,0,0,
+(X509V3_EXT_I2R)i2r_scts, NULL,
+NULL},
+};
+
+static void tls12_signature_print(BIO *out, const unsigned char *data)
+	{
+	int nid = NID_undef;
+	/* RFC6962 only permits two signature algorithms */
+	if (data[0] == TLSEXT_hash_sha256)
+		{
+		if (data[1] == TLSEXT_signature_rsa)
+			nid = NID_sha256WithRSAEncryption;
+		else if (data[1] == TLSEXT_signature_ecdsa)
+			nid = NID_ecdsa_with_SHA256;
+		}
+	if (nid == NID_undef)
+		BIO_printf(out, "%02X%02X", data[0], data[1]);
+	else
+		BIO_printf(out, "%s", OBJ_nid2ln(nid));
+	}
+
+static void timestamp_print(BIO *out, BN_ULLONG timestamp)
+	{
+	ASN1_GENERALIZEDTIME *gen;
+	char genstr[20];
+	gen = ASN1_GENERALIZEDTIME_new();
+	ASN1_GENERALIZEDTIME_adj(gen, (time_t)0,
+					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 int i2r_scts(X509V3_EXT_METHOD *method, ASN1_OCTET_STRING *oct,
+		       BIO *out, int indent)
+	{
+	BN_ULLONG timestamp;
+	unsigned char* data = oct->data;
+	unsigned short listlen, sctlen = 0, fieldlen;
+
+	if (oct->length < 2)
+		return 0;
+	n2s(data, listlen);
+	if (listlen != oct->length - 2)
+		return 0;
+
+	while (listlen > 0)
+		{
+		if (listlen < 2)
+			return 0;
+		n2s(data, sctlen);
+		listlen -= 2;
+
+		if ((sctlen < 1) || (sctlen > listlen))
+			return 0;
+		listlen -= sctlen;
+
+		BIO_printf(out, "%*sSigned Certificate Timestamp:", indent,
+			   "");
+
+		if (*data == 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)
+				return 0;
+			sctlen -= 43;
+
+			BIO_printf(out, "\n%*sVersion   : v1(0)", indent + 4,
+				   "");
+
+			BIO_printf(out, "\n%*sLog ID    : ", indent + 4, "");
+			BIO_hex_string(out, indent + 16, 16, data + 1, 32);
+
+			data += 33;
+			n2l8(data, timestamp);
+			BIO_printf(out, "\n%*sTimestamp : ", indent + 4, "");
+			timestamp_print(out, timestamp);
+
+			n2s(data, fieldlen);
+			if (sctlen < fieldlen)
+				return 0;
+			sctlen -= fieldlen;
+			BIO_printf(out, "\n%*sExtensions: ", indent + 4, "");
+			if (fieldlen == 0)
+				BIO_printf(out, "none");
+			else
+				BIO_hex_string(out, indent + 16, 16, data,
+					       fieldlen);
+			data += fieldlen;
+
+			/* digitally-signed struct header:
+			 * (1 byte) Hash algorithm
+			 * (1 byte) Signature algorithm
+			 * (2 bytes + ?) Signature
+			 */
+			if (sctlen < 4)
+				return 0;
+			sctlen -= 4;
+
+			BIO_printf(out, "\n%*sSignature : ", indent + 4, "");
+			tls12_signature_print(out, data);
+			data += 2;
+			n2s(data, fieldlen);
+			if (sctlen != fieldlen)
+				return 0;
+			BIO_printf(out, "\n%*s            ", indent + 4, "");
+			BIO_hex_string(out, indent + 16, 16, data, fieldlen);
+			if (listlen > 0) BIO_printf(out, "\n");
+			data += fieldlen;
+			}
+		}
+
+	return 1;
+	}