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9cfc8a9d5c
options. Add new streaming i2d (though strictly speaking it is BER format when streaming) and PEM functions. These all process content on the fly without storing it all in memory.
219 lines
8.6 KiB
C
219 lines
8.6 KiB
C
/* pk7_asn.c */
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/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
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* project 2000.
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*/
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/* ====================================================================
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* Copyright (c) 2000 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <stdio.h>
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#include "cryptlib.h"
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#include <openssl/asn1t.h>
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#include <openssl/pkcs7.h>
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#include <openssl/x509.h>
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/* PKCS#7 ASN1 module */
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/* This is the ANY DEFINED BY table for the top level PKCS#7 structure */
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ASN1_ADB_TEMPLATE(p7default) = ASN1_EXP_OPT(PKCS7, d.other, ASN1_ANY, 0);
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ASN1_ADB(PKCS7) = {
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ADB_ENTRY(NID_pkcs7_data, ASN1_NDEF_EXP_OPT(PKCS7, d.data, ASN1_OCTET_STRING_NDEF, 0)),
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ADB_ENTRY(NID_pkcs7_signed, ASN1_NDEF_EXP_OPT(PKCS7, d.sign, PKCS7_SIGNED, 0)),
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ADB_ENTRY(NID_pkcs7_enveloped, ASN1_NDEF_EXP_OPT(PKCS7, d.enveloped, PKCS7_ENVELOPE, 0)),
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ADB_ENTRY(NID_pkcs7_signedAndEnveloped, ASN1_NDEF_EXP_OPT(PKCS7, d.signed_and_enveloped, PKCS7_SIGN_ENVELOPE, 0)),
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ADB_ENTRY(NID_pkcs7_digest, ASN1_NDEF_EXP_OPT(PKCS7, d.digest, PKCS7_DIGEST, 0)),
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ADB_ENTRY(NID_pkcs7_encrypted, ASN1_NDEF_EXP_OPT(PKCS7, d.encrypted, PKCS7_ENCRYPT, 0))
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} ASN1_ADB_END(PKCS7, 0, type, 0, &p7default_tt, NULL);
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ASN1_NDEF_SEQUENCE(PKCS7) = {
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ASN1_SIMPLE(PKCS7, type, ASN1_OBJECT),
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ASN1_ADB_OBJECT(PKCS7)
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}ASN1_NDEF_SEQUENCE_END(PKCS7)
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IMPLEMENT_ASN1_FUNCTIONS(PKCS7)
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IMPLEMENT_ASN1_NDEF_FUNCTION(PKCS7)
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IMPLEMENT_ASN1_DUP_FUNCTION(PKCS7)
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ASN1_NDEF_SEQUENCE(PKCS7_SIGNED) = {
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ASN1_SIMPLE(PKCS7_SIGNED, version, ASN1_INTEGER),
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ASN1_SET_OF(PKCS7_SIGNED, md_algs, X509_ALGOR),
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ASN1_SIMPLE(PKCS7_SIGNED, contents, PKCS7),
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ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNED, cert, X509, 0),
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ASN1_IMP_SET_OF_OPT(PKCS7_SIGNED, crl, X509_CRL, 1),
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ASN1_SET_OF(PKCS7_SIGNED, signer_info, PKCS7_SIGNER_INFO)
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} ASN1_NDEF_SEQUENCE_END(PKCS7_SIGNED)
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IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGNED)
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/* Minor tweak to operation: free up EVP_PKEY */
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static int si_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
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void *exarg)
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{
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if(operation == ASN1_OP_FREE_POST) {
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PKCS7_SIGNER_INFO *si = (PKCS7_SIGNER_INFO *)*pval;
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EVP_PKEY_free(si->pkey);
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}
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return 1;
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}
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ASN1_SEQUENCE_cb(PKCS7_SIGNER_INFO, si_cb) = {
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ASN1_SIMPLE(PKCS7_SIGNER_INFO, version, ASN1_INTEGER),
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ASN1_SIMPLE(PKCS7_SIGNER_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL),
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ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_alg, X509_ALGOR),
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/* NB this should be a SET OF but we use a SEQUENCE OF so the
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* original order * is retained when the structure is reencoded.
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* Since the attributes are implicitly tagged this will not affect
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* the encoding.
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*/
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ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNER_INFO, auth_attr, X509_ATTRIBUTE, 0),
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ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_enc_alg, X509_ALGOR),
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ASN1_SIMPLE(PKCS7_SIGNER_INFO, enc_digest, ASN1_OCTET_STRING),
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ASN1_IMP_SET_OF_OPT(PKCS7_SIGNER_INFO, unauth_attr, X509_ATTRIBUTE, 1)
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} ASN1_SEQUENCE_END_cb(PKCS7_SIGNER_INFO, PKCS7_SIGNER_INFO)
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IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGNER_INFO)
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ASN1_SEQUENCE(PKCS7_ISSUER_AND_SERIAL) = {
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ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, issuer, X509_NAME),
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ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, serial, ASN1_INTEGER)
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} ASN1_SEQUENCE_END(PKCS7_ISSUER_AND_SERIAL)
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IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ISSUER_AND_SERIAL)
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ASN1_NDEF_SEQUENCE(PKCS7_ENVELOPE) = {
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ASN1_SIMPLE(PKCS7_ENVELOPE, version, ASN1_INTEGER),
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ASN1_SET_OF(PKCS7_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO),
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ASN1_SIMPLE(PKCS7_ENVELOPE, enc_data, PKCS7_ENC_CONTENT)
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} ASN1_NDEF_SEQUENCE_END(PKCS7_ENVELOPE)
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IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENVELOPE)
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/* Minor tweak to operation: free up X509 */
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static int ri_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
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void *exarg)
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{
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if(operation == ASN1_OP_FREE_POST) {
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PKCS7_RECIP_INFO *ri = (PKCS7_RECIP_INFO *)*pval;
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X509_free(ri->cert);
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}
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return 1;
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}
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ASN1_SEQUENCE_cb(PKCS7_RECIP_INFO, ri_cb) = {
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ASN1_SIMPLE(PKCS7_RECIP_INFO, version, ASN1_INTEGER),
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ASN1_SIMPLE(PKCS7_RECIP_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL),
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ASN1_SIMPLE(PKCS7_RECIP_INFO, key_enc_algor, X509_ALGOR),
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ASN1_SIMPLE(PKCS7_RECIP_INFO, enc_key, ASN1_OCTET_STRING)
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} ASN1_SEQUENCE_END_cb(PKCS7_RECIP_INFO, PKCS7_RECIP_INFO)
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IMPLEMENT_ASN1_FUNCTIONS(PKCS7_RECIP_INFO)
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ASN1_NDEF_SEQUENCE(PKCS7_ENC_CONTENT) = {
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ASN1_SIMPLE(PKCS7_ENC_CONTENT, content_type, ASN1_OBJECT),
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ASN1_SIMPLE(PKCS7_ENC_CONTENT, algorithm, X509_ALGOR),
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ASN1_IMP_OPT(PKCS7_ENC_CONTENT, enc_data, ASN1_OCTET_STRING_NDEF, 0)
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} ASN1_NDEF_SEQUENCE_END(PKCS7_ENC_CONTENT)
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IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENC_CONTENT)
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ASN1_NDEF_SEQUENCE(PKCS7_SIGN_ENVELOPE) = {
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ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, version, ASN1_INTEGER),
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ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO),
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ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, md_algs, X509_ALGOR),
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ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, enc_data, PKCS7_ENC_CONTENT),
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ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, cert, X509, 0),
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ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, crl, X509_CRL, 1),
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ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, signer_info, PKCS7_SIGNER_INFO)
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} ASN1_NDEF_SEQUENCE_END(PKCS7_SIGN_ENVELOPE)
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IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGN_ENVELOPE)
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ASN1_NDEF_SEQUENCE(PKCS7_ENCRYPT) = {
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ASN1_SIMPLE(PKCS7_ENCRYPT, version, ASN1_INTEGER),
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ASN1_SIMPLE(PKCS7_ENCRYPT, enc_data, PKCS7_ENC_CONTENT)
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} ASN1_NDEF_SEQUENCE_END(PKCS7_ENCRYPT)
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IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENCRYPT)
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ASN1_NDEF_SEQUENCE(PKCS7_DIGEST) = {
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ASN1_SIMPLE(PKCS7_DIGEST, version, ASN1_INTEGER),
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ASN1_SIMPLE(PKCS7_DIGEST, md, X509_ALGOR),
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ASN1_SIMPLE(PKCS7_DIGEST, contents, PKCS7),
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ASN1_SIMPLE(PKCS7_DIGEST, digest, ASN1_OCTET_STRING)
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} ASN1_NDEF_SEQUENCE_END(PKCS7_DIGEST)
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IMPLEMENT_ASN1_FUNCTIONS(PKCS7_DIGEST)
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/* Specials for authenticated attributes */
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/* When signing attributes we want to reorder them to match the sorted
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* encoding.
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*/
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ASN1_ITEM_TEMPLATE(PKCS7_ATTR_SIGN) =
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ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, PKCS7_ATTRIBUTES, X509_ATTRIBUTE)
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ASN1_ITEM_TEMPLATE_END(PKCS7_ATTR_SIGN)
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/* When verifying attributes we need to use the received order. So
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* we use SEQUENCE OF and tag it to SET OF
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*/
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ASN1_ITEM_TEMPLATE(PKCS7_ATTR_VERIFY) =
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ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_IMPTAG | ASN1_TFLG_UNIVERSAL,
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V_ASN1_SET, PKCS7_ATTRIBUTES, X509_ATTRIBUTE)
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ASN1_ITEM_TEMPLATE_END(PKCS7_ATTR_VERIFY)
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IMPLEMENT_ASN1_PRINT_FUNCTION(PKCS7)
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