sl@0: /* pk7_asn.c */ sl@0: /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL sl@0: * project 2000. sl@0: */ sl@0: /* ==================================================================== sl@0: * Copyright (c) 2000 The OpenSSL Project. All rights reserved. sl@0: * sl@0: * Redistribution and use in source and binary forms, with or without sl@0: * modification, are permitted provided that the following conditions sl@0: * are met: sl@0: * sl@0: * 1. Redistributions of source code must retain the above copyright sl@0: * notice, this list of conditions and the following disclaimer. sl@0: * sl@0: * 2. Redistributions in binary form must reproduce the above copyright sl@0: * notice, this list of conditions and the following disclaimer in sl@0: * the documentation and/or other materials provided with the sl@0: * distribution. sl@0: * sl@0: * 3. All advertising materials mentioning features or use of this sl@0: * software must display the following acknowledgment: sl@0: * "This product includes software developed by the OpenSSL Project sl@0: * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" sl@0: * sl@0: * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to sl@0: * endorse or promote products derived from this software without sl@0: * prior written permission. For written permission, please contact sl@0: * licensing@OpenSSL.org. sl@0: * sl@0: * 5. Products derived from this software may not be called "OpenSSL" sl@0: * nor may "OpenSSL" appear in their names without prior written sl@0: * permission of the OpenSSL Project. sl@0: * sl@0: * 6. Redistributions of any form whatsoever must retain the following sl@0: * acknowledgment: sl@0: * "This product includes software developed by the OpenSSL Project sl@0: * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" sl@0: * sl@0: * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY sl@0: * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE sl@0: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR sl@0: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR sl@0: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, sl@0: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT sl@0: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; sl@0: * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) sl@0: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, sl@0: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) sl@0: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED sl@0: * OF THE POSSIBILITY OF SUCH DAMAGE. sl@0: * ==================================================================== sl@0: * sl@0: * This product includes cryptographic software written by Eric Young sl@0: * (eay@cryptsoft.com). This product includes software written by Tim sl@0: * Hudson (tjh@cryptsoft.com). sl@0: * sl@0: */ sl@0: sl@0: #include sl@0: #include "cryptlib.h" sl@0: #include sl@0: #include sl@0: #include sl@0: sl@0: /* PKCS#7 ASN1 module */ sl@0: sl@0: /* This is the ANY DEFINED BY table for the top level PKCS#7 structure */ sl@0: sl@0: ASN1_ADB_TEMPLATE(p7default) = ASN1_EXP_OPT(PKCS7, d.other, ASN1_ANY, 0); sl@0: sl@0: ASN1_ADB(PKCS7) = { sl@0: ADB_ENTRY(NID_pkcs7_data, ASN1_NDEF_EXP_OPT(PKCS7, d.data, ASN1_OCTET_STRING_NDEF, 0)), sl@0: ADB_ENTRY(NID_pkcs7_signed, ASN1_NDEF_EXP_OPT(PKCS7, d.sign, PKCS7_SIGNED, 0)), sl@0: ADB_ENTRY(NID_pkcs7_enveloped, ASN1_NDEF_EXP_OPT(PKCS7, d.enveloped, PKCS7_ENVELOPE, 0)), sl@0: ADB_ENTRY(NID_pkcs7_signedAndEnveloped, ASN1_NDEF_EXP_OPT(PKCS7, d.signed_and_enveloped, PKCS7_SIGN_ENVELOPE, 0)), sl@0: ADB_ENTRY(NID_pkcs7_digest, ASN1_NDEF_EXP_OPT(PKCS7, d.digest, PKCS7_DIGEST, 0)), sl@0: ADB_ENTRY(NID_pkcs7_encrypted, ASN1_NDEF_EXP_OPT(PKCS7, d.encrypted, PKCS7_ENCRYPT, 0)) sl@0: } ASN1_ADB_END(PKCS7, 0, type, 0, &p7default_tt, NULL); sl@0: sl@0: ASN1_NDEF_SEQUENCE(PKCS7) = { sl@0: ASN1_SIMPLE(PKCS7, type, ASN1_OBJECT), sl@0: ASN1_ADB_OBJECT(PKCS7) sl@0: }ASN1_NDEF_SEQUENCE_END(PKCS7) sl@0: sl@0: IMPLEMENT_ASN1_FUNCTIONS(PKCS7) sl@0: IMPLEMENT_ASN1_NDEF_FUNCTION(PKCS7) sl@0: IMPLEMENT_ASN1_DUP_FUNCTION(PKCS7) sl@0: sl@0: ASN1_NDEF_SEQUENCE(PKCS7_SIGNED) = { sl@0: ASN1_SIMPLE(PKCS7_SIGNED, version, ASN1_INTEGER), sl@0: ASN1_SET_OF(PKCS7_SIGNED, md_algs, X509_ALGOR), sl@0: ASN1_SIMPLE(PKCS7_SIGNED, contents, PKCS7), sl@0: ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNED, cert, X509, 0), sl@0: ASN1_IMP_SET_OF_OPT(PKCS7_SIGNED, crl, X509_CRL, 1), sl@0: ASN1_SET_OF(PKCS7_SIGNED, signer_info, PKCS7_SIGNER_INFO) sl@0: } ASN1_NDEF_SEQUENCE_END(PKCS7_SIGNED) sl@0: sl@0: IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGNED) sl@0: sl@0: /* Minor tweak to operation: free up EVP_PKEY */ sl@0: static int si_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it) sl@0: { sl@0: if(operation == ASN1_OP_FREE_POST) { sl@0: PKCS7_SIGNER_INFO *si = (PKCS7_SIGNER_INFO *)*pval; sl@0: EVP_PKEY_free(si->pkey); sl@0: } sl@0: return 1; sl@0: } sl@0: sl@0: ASN1_SEQUENCE_cb(PKCS7_SIGNER_INFO, si_cb) = { sl@0: ASN1_SIMPLE(PKCS7_SIGNER_INFO, version, ASN1_INTEGER), sl@0: ASN1_SIMPLE(PKCS7_SIGNER_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL), sl@0: ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_alg, X509_ALGOR), sl@0: /* NB this should be a SET OF but we use a SEQUENCE OF so the sl@0: * original order * is retained when the structure is reencoded. sl@0: * Since the attributes are implicitly tagged this will not affect sl@0: * the encoding. sl@0: */ sl@0: ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNER_INFO, auth_attr, X509_ATTRIBUTE, 0), sl@0: ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_enc_alg, X509_ALGOR), sl@0: ASN1_SIMPLE(PKCS7_SIGNER_INFO, enc_digest, ASN1_OCTET_STRING), sl@0: ASN1_IMP_SET_OF_OPT(PKCS7_SIGNER_INFO, unauth_attr, X509_ATTRIBUTE, 1) sl@0: } ASN1_SEQUENCE_END_cb(PKCS7_SIGNER_INFO, PKCS7_SIGNER_INFO) sl@0: sl@0: IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGNER_INFO) sl@0: sl@0: ASN1_SEQUENCE(PKCS7_ISSUER_AND_SERIAL) = { sl@0: ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, issuer, X509_NAME), sl@0: ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, serial, ASN1_INTEGER) sl@0: } ASN1_SEQUENCE_END(PKCS7_ISSUER_AND_SERIAL) sl@0: sl@0: IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ISSUER_AND_SERIAL) sl@0: sl@0: ASN1_NDEF_SEQUENCE(PKCS7_ENVELOPE) = { sl@0: ASN1_SIMPLE(PKCS7_ENVELOPE, version, ASN1_INTEGER), sl@0: ASN1_SET_OF(PKCS7_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO), sl@0: ASN1_SIMPLE(PKCS7_ENVELOPE, enc_data, PKCS7_ENC_CONTENT) sl@0: } ASN1_NDEF_SEQUENCE_END(PKCS7_ENVELOPE) sl@0: sl@0: IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENVELOPE) sl@0: sl@0: /* Minor tweak to operation: free up X509 */ sl@0: static int ri_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it) sl@0: { sl@0: if(operation == ASN1_OP_FREE_POST) { sl@0: PKCS7_RECIP_INFO *ri = (PKCS7_RECIP_INFO *)*pval; sl@0: X509_free(ri->cert); sl@0: } sl@0: return 1; sl@0: } sl@0: sl@0: ASN1_SEQUENCE_cb(PKCS7_RECIP_INFO, ri_cb) = { sl@0: ASN1_SIMPLE(PKCS7_RECIP_INFO, version, ASN1_INTEGER), sl@0: ASN1_SIMPLE(PKCS7_RECIP_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL), sl@0: ASN1_SIMPLE(PKCS7_RECIP_INFO, key_enc_algor, X509_ALGOR), sl@0: ASN1_SIMPLE(PKCS7_RECIP_INFO, enc_key, ASN1_OCTET_STRING) sl@0: } ASN1_SEQUENCE_END_cb(PKCS7_RECIP_INFO, PKCS7_RECIP_INFO) sl@0: sl@0: IMPLEMENT_ASN1_FUNCTIONS(PKCS7_RECIP_INFO) sl@0: sl@0: ASN1_NDEF_SEQUENCE(PKCS7_ENC_CONTENT) = { sl@0: ASN1_SIMPLE(PKCS7_ENC_CONTENT, content_type, ASN1_OBJECT), sl@0: ASN1_SIMPLE(PKCS7_ENC_CONTENT, algorithm, X509_ALGOR), sl@0: ASN1_IMP_OPT(PKCS7_ENC_CONTENT, enc_data, ASN1_OCTET_STRING, 0) sl@0: } ASN1_NDEF_SEQUENCE_END(PKCS7_ENC_CONTENT) sl@0: sl@0: IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENC_CONTENT) sl@0: sl@0: ASN1_NDEF_SEQUENCE(PKCS7_SIGN_ENVELOPE) = { sl@0: ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, version, ASN1_INTEGER), sl@0: ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO), sl@0: ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, md_algs, X509_ALGOR), sl@0: ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, enc_data, PKCS7_ENC_CONTENT), sl@0: ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, cert, X509, 0), sl@0: ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, crl, X509_CRL, 1), sl@0: ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, signer_info, PKCS7_SIGNER_INFO) sl@0: } ASN1_NDEF_SEQUENCE_END(PKCS7_SIGN_ENVELOPE) sl@0: sl@0: IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGN_ENVELOPE) sl@0: sl@0: ASN1_NDEF_SEQUENCE(PKCS7_ENCRYPT) = { sl@0: ASN1_SIMPLE(PKCS7_ENCRYPT, version, ASN1_INTEGER), sl@0: ASN1_SIMPLE(PKCS7_ENCRYPT, enc_data, PKCS7_ENC_CONTENT) sl@0: } ASN1_NDEF_SEQUENCE_END(PKCS7_ENCRYPT) sl@0: sl@0: IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENCRYPT) sl@0: sl@0: ASN1_NDEF_SEQUENCE(PKCS7_DIGEST) = { sl@0: ASN1_SIMPLE(PKCS7_DIGEST, version, ASN1_INTEGER), sl@0: ASN1_SIMPLE(PKCS7_DIGEST, md, X509_ALGOR), sl@0: ASN1_SIMPLE(PKCS7_DIGEST, contents, PKCS7), sl@0: ASN1_SIMPLE(PKCS7_DIGEST, digest, ASN1_OCTET_STRING) sl@0: } ASN1_NDEF_SEQUENCE_END(PKCS7_DIGEST) sl@0: sl@0: IMPLEMENT_ASN1_FUNCTIONS(PKCS7_DIGEST) sl@0: sl@0: /* Specials for authenticated attributes */ sl@0: sl@0: /* When signing attributes we want to reorder them to match the sorted sl@0: * encoding. sl@0: */ sl@0: sl@0: ASN1_ITEM_TEMPLATE(PKCS7_ATTR_SIGN) = sl@0: ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, PKCS7_ATTRIBUTES, X509_ATTRIBUTE) sl@0: ASN1_ITEM_TEMPLATE_END(PKCS7_ATTR_SIGN) sl@0: sl@0: /* When verifying attributes we need to use the received order. So sl@0: * we use SEQUENCE OF and tag it to SET OF sl@0: */ sl@0: sl@0: ASN1_ITEM_TEMPLATE(PKCS7_ATTR_VERIFY) = sl@0: ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_IMPTAG | ASN1_TFLG_UNIVERSAL, sl@0: V_ASN1_SET, PKCS7_ATTRIBUTES, X509_ATTRIBUTE) sl@0: ASN1_ITEM_TEMPLATE_END(PKCS7_ATTR_VERIFY)