[thirdparty/openssl.git] / crypto / x509v3 / v3_scts.c

/* 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 "../../ssl/ssl_locl.h"

#if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__)
# define SCT_TIMESTAMP unsigned __int64
#elif defined(__arch64__)
# define SCT_TIMESTAMP unsigned long
#else
# define SCT_TIMESTAMP unsigned long long
#endif

#define n2l8(c,l)       (l =((SCT_TIMESTAMP)(*((c)++)))<<56, \
                         l|=((SCT_TIMESTAMP)(*((c)++)))<<48, \
                         l|=((SCT_TIMESTAMP)(*((c)++)))<<40, \
                         l|=((SCT_TIMESTAMP)(*((c)++)))<<32, \
                         l|=((SCT_TIMESTAMP)(*((c)++)))<<24, \
                         l|=((SCT_TIMESTAMP)(*((c)++)))<<16, \
                         l|=((SCT_TIMESTAMP)(*((c)++)))<< 8, \
                         l|=((SCT_TIMESTAMP)(*((c)++))))

typedef struct SCT_st {
    /* The encoded SCT */
    unsigned char *sct;
    unsigned short sctlen;
    /*
     * Components of the SCT.  "logid", "ext" and "sig" point to addresses
     * inside "sct".
     */
    unsigned char version;
    unsigned char *logid;
    unsigned short logidlen;
    SCT_TIMESTAMP timestamp;
    unsigned char *ext;
    unsigned short extlen;
    unsigned char hash_alg;
    unsigned char sig_alg;
    unsigned char *sig;
    unsigned short siglen;
} SCT;

DECLARE_STACK_OF(SCT)

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, SCT_TIMESTAMP 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_free(SCT *sct)
{
    if (!sct)
        return;
    if (sct->sct)
        OPENSSL_free(sct->sct);
    OPENSSL_free(sct);
}

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;

    if (d2i_ASN1_OCTET_STRING(&oct, pp, 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)
            goto err;
        if (!sk_SCT_push(sk, sct)) {
            OPENSSL_free(sct);
            goto err;
        }

        sct->sct = OPENSSL_malloc(sctlen);
        if (!sct->sct)
            goto err;
        memcpy(sct->sct, p, sctlen);
        sct->sctlen = 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->logid = p2;
            sct->logidlen = 32;
            p2 += 32;

            n2l8(p2, sct->timestamp);

            n2s(p2, fieldlen);
            if (sctlen < fieldlen)
                goto err;
            sct->ext = p2;
            sct->extlen = 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->siglen = fieldlen;
        }
    }

 done:
    ASN1_OCTET_STRING_free(oct);
    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->logid, sct->logidlen);

            BIO_printf(out, "\n%*sTimestamp : ", indent + 4, "");
            timestamp_print(out, sct->timestamp);

            BIO_printf(out, "\n%*sExtensions: ", indent + 4, "");
            if (sct->extlen == 0)
                BIO_printf(out, "none");
            else
                BIO_hex_string(out, indent + 16, 16, sct->ext, sct->extlen);

            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->siglen);
        } else {                /* Unknown version */

            BIO_printf(out, "unknown\n%*s", indent + 16, "");
            BIO_hex_string(out, indent + 16, 16, sct->sct, sct->sctlen);
        }

        if (++i < sk_SCT_num(sct_list))
            BIO_printf(out, "\n");
    }

    return 1;
}
Commit	Line	Data
ded18639	1	/* v3_scts.c */
0f113f3e MC	2	/*
0f113f3e MC	3	* Written by Rob Stradling (rob@comodo.com) for the OpenSSL project 2014.
ded18639 DSH	4	*/
	5	/* ====================================================================
	6	* Copyright (c) 2014 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
0f113f3e	13	* notice, this list of conditions and the following disclaimer.
ded18639 DSH	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
ded18639 DSH	59	#include <stdio.h>
	60	#include "cryptlib.h"
	61	#include <openssl/asn1.h>
	62	#include <openssl/x509v3.h>
77b1f872	63	#include "../../ssl/ssl_locl.h"
ded18639	64
3a325c60	65	#if (defined(_WIN32) \|\| defined(_WIN64)) && !defined(__MINGW32__)
0f113f3e	66	# define SCT_TIMESTAMP unsigned __int64
3a325c60	67	#elif defined(__arch64__)
0f113f3e	68	# define SCT_TIMESTAMP unsigned long
3a325c60	69	#else
0f113f3e	70	# define SCT_TIMESTAMP unsigned long long
3a325c60 DSH	71	#endif
3a325c60 DSH	72
0f113f3e MC	73	#define n2l8(c,l) (l =((SCT_TIMESTAMP)(*((c)++)))<<56, \
	74	l\|=((SCT_TIMESTAMP)(*((c)++)))<<48, \
	75	l\|=((SCT_TIMESTAMP)(*((c)++)))<<40, \
	76	l\|=((SCT_TIMESTAMP)(*((c)++)))<<32, \
	77	l\|=((SCT_TIMESTAMP)(*((c)++)))<<24, \
	78	l\|=((SCT_TIMESTAMP)(*((c)++)))<<16, \
	79	l\|=((SCT_TIMESTAMP)(*((c)++)))<< 8, \
	80	l\|=((SCT_TIMESTAMP)(*((c)++))))
e0520c65	81
fd2309aa	82	typedef struct SCT_st {
0f113f3e MC	83	/* The encoded SCT */
	84	unsigned char *sct;
	85	unsigned short sctlen;
	86	/*
	87	* Components of the SCT. "logid", "ext" and "sig" point to addresses
	88	* inside "sct".
	89	*/
	90	unsigned char version;
	91	unsigned char *logid;
	92	unsigned short logidlen;
	93	SCT_TIMESTAMP timestamp;
	94	unsigned char *ext;
	95	unsigned short extlen;
	96	unsigned char hash_alg;
	97	unsigned char sig_alg;
	98	unsigned char *sig;
	99	unsigned short siglen;
fd2309aa RS	100	} SCT;
	101
	102	DECLARE_STACK_OF(SCT)
	103
	104	static void SCT_LIST_free(STACK_OF(SCT) *a);
0f113f3e MC	105	static STACK_OF(SCT) d2i_SCT_LIST(STACK_OF(SCT) *a,
0f113f3e MC	106	const unsigned char **pp, long length);
fd2309aa	107	static int i2r_SCT_LIST(X509V3_EXT_METHOD method, STACK_OF(SCT) sct_list,
0f113f3e	108	BIO *out, int indent);
ded18639 DSH	109
ded18639 DSH	110	const X509V3_EXT_METHOD v3_ct_scts[] = {
0f113f3e MC	111	{NID_ct_precert_scts, 0, NULL,
	112	0, (X509V3_EXT_FREE)SCT_LIST_free,
	113	(X509V3_EXT_D2I)d2i_SCT_LIST, 0,
	114	0, 0, 0, 0,
	115	(X509V3_EXT_I2R)i2r_SCT_LIST, 0,
	116	NULL},
	117
	118	{NID_ct_cert_scts, 0, NULL,
	119	0, (X509V3_EXT_FREE)SCT_LIST_free,
	120	(X509V3_EXT_D2I)d2i_SCT_LIST, 0,
	121	0, 0, 0, 0,
	122	(X509V3_EXT_I2R)i2r_SCT_LIST, 0,
	123	NULL},
ded18639 DSH	124	};
ded18639 DSH	125
fd2309aa	126	static void tls12_signature_print(BIO *out, const unsigned char hash_alg,
0f113f3e MC	127	const unsigned char sig_alg)
	128	{
	129	int nid = NID_undef;
	130	/* RFC6962 only permits two signature algorithms */
	131	if (hash_alg == TLSEXT_hash_sha256) {
	132	if (sig_alg == TLSEXT_signature_rsa)
	133	nid = NID_sha256WithRSAEncryption;
	134	else if (sig_alg == TLSEXT_signature_ecdsa)
	135	nid = NID_ecdsa_with_SHA256;
	136	}
	137	if (nid == NID_undef)
	138	BIO_printf(out, "%02X%02X", hash_alg, sig_alg);
	139	else
	140	BIO_printf(out, "%s", OBJ_nid2ln(nid));
	141	}
ded18639	142
fd2309aa	143	static void timestamp_print(BIO *out, SCT_TIMESTAMP timestamp)
0f113f3e MC	144	{
	145	ASN1_GENERALIZEDTIME *gen;
	146	char genstr[20];
	147	gen = ASN1_GENERALIZEDTIME_new();
	148	ASN1_GENERALIZEDTIME_adj(gen, (time_t)0,
	149	(int)(timestamp / 86400000),
	150	(timestamp % 86400000) / 1000);
	151	/*
	152	* Note GeneralizedTime from ASN1_GENERALIZETIME_adj is always 15
	153	* characters long with a final Z. Update it with fractional seconds.
	154	*/
	155	BIO_snprintf(genstr, sizeof(genstr), "%.14s.%03dZ",
	156	ASN1_STRING_data(gen), (unsigned int)(timestamp % 1000));
	157	ASN1_GENERALIZEDTIME_set_string(gen, genstr);
	158	ASN1_GENERALIZEDTIME_print(out, gen);
	159	ASN1_GENERALIZEDTIME_free(gen);
	160	}
ded18639	161
fd2309aa	162	static void SCT_free(SCT *sct)
0f113f3e	163	{
895cba19 RS	164	if (!sct)
	165	return;
	166	if (sct->sct)
	167	OPENSSL_free(sct->sct);
	168	OPENSSL_free(sct);
0f113f3e	169	}
fd2309aa RS	170
fd2309aa RS	171	static void SCT_LIST_free(STACK_OF(SCT) *a)
0f113f3e MC	172	{
	173	sk_SCT_pop_free(a, SCT_free);
	174	}
	175
	176	static STACK_OF(SCT) d2i_SCT_LIST(STACK_OF(SCT) *a,
	177	const unsigned char **pp, long length)
	178	{
	179	ASN1_OCTET_STRING *oct = NULL;
	180	STACK_OF(SCT) *sk = NULL;
	181	SCT *sct;
	182	unsigned char p, p2;
	183	unsigned short listlen, sctlen = 0, fieldlen;
	184
	185	if (d2i_ASN1_OCTET_STRING(&oct, pp, length) == NULL)
	186	return NULL;
	187	if (oct->length < 2)
	188	goto done;
	189	p = oct->data;
	190	n2s(p, listlen);
	191	if (listlen != oct->length - 2)
	192	goto done;
	193
	194	if ((sk = sk_SCT_new_null()) == NULL)
	195	goto done;
	196
	197	while (listlen > 0) {
	198	if (listlen < 2)
	199	goto err;
	200	n2s(p, sctlen);
	201	listlen -= 2;
	202
	203	if ((sctlen < 1) \|\| (sctlen > listlen))
	204	goto err;
	205	listlen -= sctlen;
	206
	207	sct = OPENSSL_malloc(sizeof(SCT));
	208	if (!sct)
	209	goto err;
	210	if (!sk_SCT_push(sk, sct)) {
	211	OPENSSL_free(sct);
	212	goto err;
	213	}
	214
	215	sct->sct = OPENSSL_malloc(sctlen);
	216	if (!sct->sct)
	217	goto err;
	218	memcpy(sct->sct, p, sctlen);
	219	sct->sctlen = sctlen;
	220	p += sctlen;
	221	p2 = sct->sct;
	222
	223	sct->version = *p2++;
	224	if (sct->version == 0) { /* SCT v1 */
50e735f9 MC	225	/*-
	226	* Fixed-length header:
	227	* struct {
	228	* (1 byte) Version sct_version;
	229	* (32 bytes) LogID id;
	230	* (8 bytes) uint64 timestamp;
	231	* (2 bytes + ?) CtExtensions extensions;
	232	*/
0f113f3e MC	233	if (sctlen < 43)
	234	goto err;
	235	sctlen -= 43;
	236
	237	sct->logid = p2;
	238	sct->logidlen = 32;
	239	p2 += 32;
	240
	241	n2l8(p2, sct->timestamp);
	242
	243	n2s(p2, fieldlen);
	244	if (sctlen < fieldlen)
	245	goto err;
	246	sct->ext = p2;
	247	sct->extlen = fieldlen;
	248	p2 += fieldlen;
	249	sctlen -= fieldlen;
	250
50e735f9 MC	251	/*-
	252	* digitally-signed struct header:
	253	* (1 byte) Hash algorithm
	254	* (1 byte) Signature algorithm
	255	* (2 bytes + ?) Signature
	256	*/
0f113f3e MC	257	if (sctlen < 4)
	258	goto err;
	259	sctlen -= 4;
	260
	261	sct->hash_alg = *p2++;
	262	sct->sig_alg = *p2++;
	263	n2s(p2, fieldlen);
	264	if (sctlen != fieldlen)
	265	goto err;
	266	sct->sig = p2;
	267	sct->siglen = fieldlen;
	268	}
	269	}
	270
	271	done:
	272	ASN1_OCTET_STRING_free(oct);
	273	return sk;
	274
	275	err:
	276	SCT_LIST_free(sk);
	277	sk = NULL;
	278	goto done;
	279	}
fd2309aa RS	280
fd2309aa RS	281	static int i2r_SCT_LIST(X509V3_EXT_METHOD method, STACK_OF(SCT) sct_list,
0f113f3e MC	282	BIO *out, int indent)
	283	{
	284	SCT *sct;
	285	int i;
	286
	287	for (i = 0; i < sk_SCT_num(sct_list);) {
	288	sct = sk_SCT_value(sct_list, i);
	289
	290	BIO_printf(out, "%*sSigned Certificate Timestamp:", indent, "");
	291	BIO_printf(out, "\n%*sVersion : ", indent + 4, "");
	292
	293	if (sct->version == 0) { /* SCT v1 */
	294	BIO_printf(out, "v1(0)");
	295
	296	BIO_printf(out, "\n%*sLog ID : ", indent + 4, "");
	297	BIO_hex_string(out, indent + 16, 16, sct->logid, sct->logidlen);
	298
	299	BIO_printf(out, "\n%*sTimestamp : ", indent + 4, "");
	300	timestamp_print(out, sct->timestamp);
	301
	302	BIO_printf(out, "\n%*sExtensions: ", indent + 4, "");
	303	if (sct->extlen == 0)
	304	BIO_printf(out, "none");
	305	else
	306	BIO_hex_string(out, indent + 16, 16, sct->ext, sct->extlen);
	307
	308	BIO_printf(out, "\n%*sSignature : ", indent + 4, "");
	309	tls12_signature_print(out, sct->hash_alg, sct->sig_alg);
	310	BIO_printf(out, "\n%*s ", indent + 4, "");
	311	BIO_hex_string(out, indent + 16, 16, sct->sig, sct->siglen);
	312	} else { /* Unknown version */
	313
	314	BIO_printf(out, "unknown\n%*s", indent + 16, "");
	315	BIO_hex_string(out, indent + 16, 16, sct->sct, sct->sctlen);
	316	}
	317
	318	if (++i < sk_SCT_num(sct_list))
	319	BIO_printf(out, "\n");
	320	}
	321
	322	return 1;
	323	}