diff options
author | Dr. Stephen Henson <steve@openssl.org> | 2014-02-20 18:24:11 +0000 |
---|---|---|
committer | Dr. Stephen Henson <steve@openssl.org> | 2014-02-20 18:48:56 +0000 |
commit | ded18639d7f8ffacea10a24938cf091a0efbca40 (patch) | |
tree | 6f825751eb517dc5e71e42028bdda1ea55a831a0 /crypto/x509v3 | |
parent | 4cfeb00be953cff10182772930adb7776860cfff (diff) |
Move CT viewer extension code to crypto/x509v3
Diffstat (limited to 'crypto/x509v3')
-rw-r--r-- | crypto/x509v3/Makefile | 4 | ||||
-rw-r--r-- | crypto/x509v3/ext_dat.h | 3 | ||||
-rw-r--r-- | crypto/x509v3/v3_scts.c | 204 |
3 files changed, 209 insertions, 2 deletions
diff --git a/crypto/x509v3/Makefile b/crypto/x509v3/Makefile index b54f540a35..8c46daa6ff 100644 --- a/crypto/x509v3/Makefile +++ b/crypto/x509v3/Makefile @@ -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_asid.c v3_addr.c v3_scts.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_asid.o v3_addr.o v3_scts.o SRC= $(LIBSRC) diff --git a/crypto/x509v3/ext_dat.h b/crypto/x509v3/ext_dat.h index 76daee6fcd..80bd0b2e6c 100644 --- a/crypto/x509v3/ext_dat.h +++ b/crypto/x509v3/ext_dat.h @@ -68,6 +68,7 @@ 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. @@ -124,6 +125,8 @@ 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 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; + } |