Move the SCT List extension parser into libssl.
authorRob Stradling <rob@comodo.com>
Wed, 19 Feb 2014 13:12:46 +0000 (13:12 +0000)
committerRob Stradling <rob@comodo.com>
Wed, 19 Feb 2014 13:12:46 +0000 (13:12 +0000)
Add the extension parser in the s_client, ocsp and x509 apps.

12 files changed:
apps/ocsp.c
apps/s_client.c
apps/x509.c
crypto/Makefile
crypto/bio/b_dump.c
crypto/bio/bio.h
crypto/crypto-lib.com
crypto/x509v3/Makefile
crypto/x509v3/ext_dat.h
crypto/x509v3/v3_scts.c [deleted file]
ssl/ssl.h
ssl/t1_lib.c

index ccf2f0f..05db842 100644 (file)
@@ -174,6 +174,7 @@ int MAIN(int argc, char **argv)
                goto end;
        SSL_load_error_strings();
        OpenSSL_add_ssl_algorithms();
+       X509V3_EXT_add_rfc6962();
        args = argv + 1;
        reqnames = sk_OPENSSL_STRING_new_null();
        ids = sk_OCSP_CERTID_new_null();
@@ -970,6 +971,7 @@ end:
                OPENSSL_free(path);
                }
 
+       X509V3_EXT_cleanup();
        OPENSSL_EXIT(ret);
 }
 
index af88ffd..f85309f 100644 (file)
@@ -713,6 +713,8 @@ static char *jpake_secret = NULL;
        c_msg=0;
        c_showcerts=0;
 
+       X509V3_EXT_add_rfc6962();
+
        if (bio_err == NULL)
                bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 
@@ -2193,6 +2195,7 @@ end:
                BIO_free(bio_c_msg);
                bio_c_msg=NULL;
                }
+       X509V3_EXT_cleanup();
        apps_shutdown();
        OPENSSL_EXIT(ret);
        }
index 1b612d1..db0ab1a 100644 (file)
@@ -73,6 +73,7 @@
 #include <openssl/x509v3.h>
 #include <openssl/objects.h>
 #include <openssl/pem.h>
+#include <openssl/ssl.h>
 #ifndef OPENSSL_NO_RSA
 #include <openssl/rsa.h>
 #endif
@@ -224,6 +225,8 @@ int MAIN(int argc, char **argv)
 
        apps_startup();
 
+       X509V3_EXT_add_rfc6962();
+
        if (bio_err == NULL)
                bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 
@@ -1155,6 +1158,7 @@ end:
        sk_ASN1_OBJECT_pop_free(trust, ASN1_OBJECT_free);
        sk_ASN1_OBJECT_pop_free(reject, ASN1_OBJECT_free);
        if (passin) OPENSSL_free(passin);
+       X509V3_EXT_cleanup();
        apps_shutdown();
        OPENSSL_EXIT(ret);
        }
index b253f50..146b414 100644 (file)
@@ -44,8 +44,8 @@ LIBOBJ= cryptlib.o mem.o mem_dbg.o cversion.o ex_data.o cpt_err.o \
 SRC= $(LIBSRC)
 
 EXHEADER= crypto.h opensslv.h opensslconf.h ebcdic.h symhacks.h \
-       ossl_typ.h
-HEADER=        cryptlib.h buildinf.h md32_common.h o_time.h o_str.h o_dir.h $(EXHEADER)
+       ossl_typ.h o_time.h
+HEADER=        cryptlib.h buildinf.h md32_common.h o_str.h o_dir.h $(EXHEADER)
 
 ALL=    $(GENERAL) $(SRC) $(HEADER)
 
index c80ecc4..b3a5f7d 100644 (file)
@@ -185,3 +185,25 @@ int BIO_dump_indent(BIO *bp, const char *s, int len, int indent)
        return BIO_dump_indent_cb(write_bio, bp, s, len, indent);
        }
 
+int BIO_hex_string(BIO *out, int indent, int width, unsigned char *data,
+                  int datalen)
+       {
+       int i, j = 0;
+
+       if (datalen < 1)
+               return 1;
+
+       for (i = 0; i < datalen - 1; i++)
+               {
+               if (i && !j) BIO_printf(out, "%*s", indent, "");
+
+               BIO_printf(out, "%02X:", data[i]);
+
+               j = (j + 1) % width;
+               if (!j) BIO_printf(out, "\n");
+               }
+
+       if (i && !j) BIO_printf(out, "%*s", indent, "");
+       BIO_printf(out, "%02X", data[datalen - 1]);
+       return 1;
+       }
index c14009a..8489ff8 100644 (file)
@@ -707,6 +707,9 @@ int BIO_dump_indent(BIO *b,const char *bytes,int len,int indent);
 int BIO_dump_fp(FILE *fp, const char *s, int len);
 int BIO_dump_indent_fp(FILE *fp, const char *s, int len, int indent);
 #endif
+int BIO_hex_string(BIO *out, int indent, int width, unsigned char *data,
+                  int datalen);
+
 struct hostent *BIO_gethostbyname(const char *name);
 /* We might want a thread-safe interface too:
  * struct hostent *BIO_gethostbyname_r(const char *name,
index 4db5063..64ffb85 100644 (file)
@@ -321,7 +321,7 @@ $ LIB_X509V3 = "v3_bcons,v3_bitst,v3_conf,v3_extku,v3_ia5,v3_lib,"+ -
        "v3_int,v3_enum,v3_sxnet,v3_cpols,v3_crld,v3_purp,v3_info,"+ -
        "v3_ocsp,v3_akeya,v3_pmaps,v3_pcons,v3_ncons,v3_pcia,v3_pci,"+ -
        "pcy_cache,pcy_node,pcy_data,pcy_map,pcy_tree,pcy_lib,"+ -
-       "v3_asid,v3_addr,v3_scts"
+       "v3_asid,v3_addr"
 $ LIB_CONF = "conf_err,conf_lib,conf_api,conf_def,conf_mod,conf_mall,conf_sap"
 $ LIB_TXT_DB = "txt_db"
 $ LIB_PKCS7 = "pk7_asn1,pk7_lib,pkcs7err,pk7_doit,pk7_smime,pk7_attr,"+ -
index 8c46daa..b54f540 100644 (file)
@@ -22,13 +22,13 @@ v3_prn.c v3_utl.c v3err.c v3_genn.c v3_alt.c v3_skey.c v3_akey.c v3_pku.c \
 v3_int.c v3_enum.c v3_sxnet.c v3_cpols.c v3_crld.c v3_purp.c v3_info.c \
 v3_ocsp.c v3_akeya.c v3_pmaps.c v3_pcons.c v3_ncons.c v3_pcia.c v3_pci.c \
 pcy_cache.c pcy_node.c pcy_data.c pcy_map.c pcy_tree.c pcy_lib.c \
-v3_asid.c v3_addr.c v3_scts.c
+v3_asid.c v3_addr.c
 LIBOBJ= v3_bcons.o v3_bitst.o v3_conf.o v3_extku.o v3_ia5.o v3_lib.o \
 v3_prn.o v3_utl.o v3err.o v3_genn.o v3_alt.o v3_skey.o v3_akey.o v3_pku.o \
 v3_int.o v3_enum.o v3_sxnet.o v3_cpols.o v3_crld.o v3_purp.o v3_info.o \
 v3_ocsp.o v3_akeya.o v3_pmaps.o v3_pcons.o v3_ncons.o v3_pcia.o v3_pci.o \
 pcy_cache.o pcy_node.o pcy_data.o pcy_map.o pcy_tree.o pcy_lib.o \
-v3_asid.o v3_addr.o v3_scts.o
+v3_asid.o v3_addr.o
 
 SRC= $(LIBSRC)
 
index 80bd0b2..76daee6 100644 (file)
@@ -68,7 +68,6 @@ extern X509V3_EXT_METHOD v3_crl_hold, v3_pci;
 extern X509V3_EXT_METHOD v3_policy_mappings, v3_policy_constraints;
 extern X509V3_EXT_METHOD v3_name_constraints, v3_inhibit_anyp, v3_idp;
 extern X509V3_EXT_METHOD v3_addr, v3_asid;
-extern X509V3_EXT_METHOD v3_ct_scts[];
 
 /* This table will be searched using OBJ_bsearch so it *must* kept in
  * order of the ext_nid values.
@@ -125,8 +124,6 @@ static const X509V3_EXT_METHOD *standard_exts[] = {
 &v3_idp,
 &v3_alt[2],
 &v3_freshest_crl,
-&v3_ct_scts[0],
-&v3_ct_scts[1],
 };
 
 /* Number of standard extensions */
diff --git a/crypto/x509v3/v3_scts.c b/crypto/x509v3/v3_scts.c
deleted file mode 100644 (file)
index 0868a7b..0000000
+++ /dev/null
@@ -1,272 +0,0 @@
-/* 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 "o_time.h"
-#include <openssl/x509v3.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},
-};
-
-
-/* <ripped>
- * from crypto/asn1/t_x509.c
- */
-static const char *mon[12]=
-    {
-    "Jan","Feb","Mar","Apr","May","Jun",
-    "Jul","Aug","Sep","Oct","Nov","Dec"
-    };
-/* </ripped> */
-
-
-/* <ripped>
- * from ssl/t1_lib.c
- */
-typedef struct 
-       {
-       int nid;
-       int id;
-       } tls12_lookup;
-
-static tls12_lookup tls12_md[] = {
-       {NID_md5, TLSEXT_hash_md5},
-       {NID_sha1, TLSEXT_hash_sha1},
-       {NID_sha224, TLSEXT_hash_sha224},
-       {NID_sha256, TLSEXT_hash_sha256},
-       {NID_sha384, TLSEXT_hash_sha384},
-       {NID_sha512, TLSEXT_hash_sha512}
-};
-
-static tls12_lookup tls12_sig[] = {
-       {EVP_PKEY_RSA, TLSEXT_signature_rsa},
-       {EVP_PKEY_DSA, TLSEXT_signature_dsa},
-       {EVP_PKEY_EC, TLSEXT_signature_ecdsa}
-};
-
-static int tls12_find_nid(int id, tls12_lookup *table, size_t tlen)
-       {
-       size_t i;
-       for (i = 0; i < tlen; i++)
-               {
-               if ((table[i].id) == id)
-                       return table[i].nid;
-               }
-       return NID_undef;
-       }
-
-/* Convert TLS 1.2 signature algorithm extension values into NIDs */
-static void tls1_lookup_sigalg(int *phash_nid, int *psign_nid,
-                       int *psignhash_nid, const unsigned char *data)
-       {
-       int sign_nid = 0, hash_nid = 0;
-       if (!phash_nid && !psign_nid && !psignhash_nid)
-               return;
-       if (phash_nid || psignhash_nid)
-               {
-               hash_nid = tls12_find_nid(data[0], tls12_md,
-                                       sizeof(tls12_md)/sizeof(tls12_lookup));
-               if (phash_nid)
-                       *phash_nid = hash_nid;
-               }
-       if (psign_nid || psignhash_nid)
-               {
-               sign_nid = tls12_find_nid(data[1], tls12_sig,
-                                       sizeof(tls12_sig)/sizeof(tls12_lookup));
-               if (psign_nid)
-                       *psign_nid = sign_nid;
-               }
-       if (psignhash_nid)
-               {
-               if (sign_nid && hash_nid)
-                       OBJ_find_sigid_by_algs(psignhash_nid,
-                                                       hash_nid, sign_nid);
-               else
-                       *psignhash_nid = NID_undef;
-               }
-       }
-/* </ripped> */
-
-
-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, fieldlen, linelen;
-       int signhash_nid;
-       time_t unix_epoch = 0;
-       struct tm tm1;
-
-       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;
-
-               if (*data == 0) {       /* v1 SCT */
-                       /* 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, "");
-
-                       BIO_printf(out, "\n%*sLog ID    : ", indent, "");
-                       BIO_printf(out, "%s:", hex_to_string(data + 1, 16));
-                       BIO_printf(out, "\n%*s            ", indent, "");
-                       BIO_printf(out, "%s", hex_to_string(data + 17, 16));
-
-                       data += 33;
-                       n2l8(data, timestamp);
-                       OPENSSL_gmtime(&unix_epoch, &tm1);
-                       OPENSSL_gmtime_adj(&tm1, timestamp / 86400000,
-                                               (timestamp % 86400000) / 1000);
-                       BIO_printf(out, "\n%*sTimestamp : ", indent, "");
-                       BIO_printf(out, "%s %2d %02d:%02d:%02d.%03u %d UTC",
-                                  mon[tm1.tm_mon], tm1.tm_mday, tm1.tm_hour,
-                                  tm1.tm_min, tm1.tm_sec,
-                                  (unsigned int)(timestamp % 1000),
-                                  tm1.tm_year + 1900);
-
-                       n2s(data, fieldlen);
-                       if (sctlen < fieldlen)
-                               return 0;
-                       sctlen -= fieldlen;
-                       BIO_printf(out, "\n%*sExtensions:", indent, "");
-                       if (fieldlen == 0)
-                               BIO_printf(out, " none");
-                       for (linelen = 16; fieldlen > 0; ) {
-                               if (linelen > fieldlen)
-                                       linelen = fieldlen;
-                               BIO_printf(out, "\n%*s       ", indent, "");
-                               BIO_printf(out, "%s",
-                                          hex_to_string(data, linelen));
-                               if (fieldlen > 16)
-                                       BIO_printf(out, ":");
-                               data += linelen;
-                               fieldlen -= linelen;
-                       }
-
-                       /* digitally-signed struct header:
-                        * (1 byte) Hash algorithm
-                        * (1 byte) Signature algorithm
-                        * (2 bytes + ?) Signature
-                        */
-                       if (sctlen < 4)
-                               return 0;
-                       sctlen -= 4;
-
-                       tls1_lookup_sigalg(NULL, NULL, &signhash_nid, data);
-                       data += 2;
-                       n2s(data, fieldlen);
-                       if (sctlen != fieldlen)
-                               return 0;
-                       BIO_printf(out, "\n%*sSignature : ", indent, "");
-                       BIO_printf(out, "%s", OBJ_nid2ln(signhash_nid));
-                       for (linelen = 16; fieldlen > 0; ) {
-                               if (linelen > fieldlen)
-                                       linelen = fieldlen;
-                               BIO_printf(out, "\n%*s            ", indent,
-                                          "");
-                               BIO_printf(out, "%s",
-                                          hex_to_string(data, linelen));
-                               if (fieldlen > 16)
-                                       BIO_printf(out, ":");
-                               data += linelen;
-                               fieldlen -= linelen;
-                       }
-
-                       BIO_printf(out, "\n");
-               }
-       }
-
-       return 1;
-}
index 7d40f56..303e28c 100644 (file)
--- a/ssl/ssl.h
+++ b/ssl/ssl.h
@@ -2554,6 +2554,9 @@ void SSL_trace(int write_p, int version, int content_type,
 const char *SSL_CIPHER_standard_name(const SSL_CIPHER *c);
 #endif
 
+/* RFC6962 Signed Certificate Timestamp List X.509 extension parser */
+int X509V3_EXT_add_rfc6962(void);
+
 /* BEGIN ERROR CODES */
 /* The following lines are auto generated by the script mkerr.pl. Any changes
  * made after this point may be overwritten when the script is next run.
index 6c988d1..ebb6a94 100644 (file)
  */
 
 #include <stdio.h>
+#include <time.h>
+#include <openssl/bio.h>
 #include <openssl/objects.h>
 #include <openssl/evp.h>
 #include <openssl/hmac.h>
 #include <openssl/ocsp.h>
+#include <openssl/o_time.h>
 #include <openssl/rand.h>
 #include "ssl_locl.h"
 
@@ -4432,3 +4435,126 @@ int SSL_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain)
        }
 
 #endif
+
+/* RFC6962 Signed Certificate Timestamp List X.509 extension parser */
+int i2r_sctlist(X509V3_EXT_METHOD *method, ASN1_OCTET_STRING *oct,
+               BIO *out, int indent)
+       {
+       BN_ULLONG timestamp;
+       struct tm tm1;
+       time_t unix_epoch = 0;
+       unsigned char* data = oct->data;
+       char month[4];
+       unsigned short listlen, sctlen = 0, fieldlen;
+       int signhash_nid;
+
+       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);
+                       OPENSSL_gmtime(&unix_epoch, &tm1);
+                       OPENSSL_gmtime_adj(&tm1, timestamp / 86400000,
+                                          (timestamp % 86400000) / 1000);
+                       strftime(month, 4, "%b", &tm1);
+                       BIO_printf(out, "\n%*sTimestamp : ", indent + 4, "");
+                       BIO_printf(out, "%s %2d %02d:%02d:%02d.%03u %d UTC",
+                                  month, tm1.tm_mday, tm1.tm_hour,
+                                  tm1.tm_min, tm1.tm_sec,
+                                  (unsigned int)(timestamp % 1000),
+                                  tm1.tm_year + 1900);
+
+                       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;
+
+                       tls1_lookup_sigalg(NULL, NULL, &signhash_nid, data);
+                       data += 2;
+                       n2s(data, fieldlen);
+                       if (sctlen != fieldlen)
+                               return 0;
+                       BIO_printf(out, "\n%*sSignature : ", indent + 4, "");
+                       BIO_printf(out, "%s", OBJ_nid2ln(signhash_nid));
+                       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;
+       }
+
+static X509V3_EXT_METHOD ext_method_ct_precert_scts =
+       {
+       NID_ct_precert_scts, 0, ASN1_ITEM_ref(ASN1_OCTET_STRING),
+       0, 0, 0, 0, 0, 0, 0, 0, (X509V3_EXT_I2R)i2r_sctlist, NULL, NULL
+       };
+
+static X509V3_EXT_METHOD ext_method_ct_cert_scts =
+       {
+       NID_ct_cert_scts, 0, ASN1_ITEM_ref(ASN1_OCTET_STRING),
+       0, 0, 0, 0, 0, 0, 0, 0, (X509V3_EXT_I2R)i2r_sctlist, NULL, NULL
+       };
+
+int X509V3_EXT_add_rfc6962(void)
+       {
+       if (!X509V3_EXT_add(&ext_method_ct_precert_scts))
+               return 0;
+       if (!X509V3_EXT_add(&ext_method_ct_cert_scts))
+               return 0;
+       return 1;
+       }