1109998Smarkm/* pk7_asn.c */ 2280304Sjkim/* 3280304Sjkim * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project 4280304Sjkim * 2000. 5109998Smarkm */ 6109998Smarkm/* ==================================================================== 7109998Smarkm * Copyright (c) 2000 The OpenSSL Project. All rights reserved. 8109998Smarkm * 9109998Smarkm * Redistribution and use in source and binary forms, with or without 10109998Smarkm * modification, are permitted provided that the following conditions 11109998Smarkm * are met: 12109998Smarkm * 13109998Smarkm * 1. Redistributions of source code must retain the above copyright 14280304Sjkim * notice, this list of conditions and the following disclaimer. 15109998Smarkm * 16109998Smarkm * 2. Redistributions in binary form must reproduce the above copyright 17109998Smarkm * notice, this list of conditions and the following disclaimer in 18109998Smarkm * the documentation and/or other materials provided with the 19109998Smarkm * distribution. 20109998Smarkm * 21109998Smarkm * 3. All advertising materials mentioning features or use of this 22109998Smarkm * software must display the following acknowledgment: 23109998Smarkm * "This product includes software developed by the OpenSSL Project 24109998Smarkm * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 25109998Smarkm * 26109998Smarkm * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 27109998Smarkm * endorse or promote products derived from this software without 28109998Smarkm * prior written permission. For written permission, please contact 29109998Smarkm * licensing@OpenSSL.org. 30109998Smarkm * 31109998Smarkm * 5. Products derived from this software may not be called "OpenSSL" 32109998Smarkm * nor may "OpenSSL" appear in their names without prior written 33109998Smarkm * permission of the OpenSSL Project. 34109998Smarkm * 35109998Smarkm * 6. Redistributions of any form whatsoever must retain the following 36109998Smarkm * acknowledgment: 37109998Smarkm * "This product includes software developed by the OpenSSL Project 38109998Smarkm * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 39109998Smarkm * 40109998Smarkm * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 41109998Smarkm * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42109998Smarkm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 43109998Smarkm * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 44109998Smarkm * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45109998Smarkm * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 46109998Smarkm * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 47109998Smarkm * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48109998Smarkm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 49109998Smarkm * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 50109998Smarkm * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 51109998Smarkm * OF THE POSSIBILITY OF SUCH DAMAGE. 52109998Smarkm * ==================================================================== 53109998Smarkm * 54109998Smarkm * This product includes cryptographic software written by Eric Young 55109998Smarkm * (eay@cryptsoft.com). This product includes software written by Tim 56109998Smarkm * Hudson (tjh@cryptsoft.com). 57109998Smarkm * 58109998Smarkm */ 59109998Smarkm 60109998Smarkm#include <stdio.h> 61109998Smarkm#include "cryptlib.h" 62109998Smarkm#include <openssl/asn1t.h> 63109998Smarkm#include <openssl/pkcs7.h> 64109998Smarkm#include <openssl/x509.h> 65109998Smarkm 66109998Smarkm/* PKCS#7 ASN1 module */ 67109998Smarkm 68109998Smarkm/* This is the ANY DEFINED BY table for the top level PKCS#7 structure */ 69109998Smarkm 70109998SmarkmASN1_ADB_TEMPLATE(p7default) = ASN1_EXP_OPT(PKCS7, d.other, ASN1_ANY, 0); 71109998Smarkm 72109998SmarkmASN1_ADB(PKCS7) = { 73280304Sjkim ADB_ENTRY(NID_pkcs7_data, ASN1_NDEF_EXP_OPT(PKCS7, d.data, ASN1_OCTET_STRING_NDEF, 0)), 74280304Sjkim ADB_ENTRY(NID_pkcs7_signed, ASN1_NDEF_EXP_OPT(PKCS7, d.sign, PKCS7_SIGNED, 0)), 75280304Sjkim ADB_ENTRY(NID_pkcs7_enveloped, ASN1_NDEF_EXP_OPT(PKCS7, d.enveloped, PKCS7_ENVELOPE, 0)), 76280304Sjkim ADB_ENTRY(NID_pkcs7_signedAndEnveloped, ASN1_NDEF_EXP_OPT(PKCS7, d.signed_and_enveloped, PKCS7_SIGN_ENVELOPE, 0)), 77280304Sjkim ADB_ENTRY(NID_pkcs7_digest, ASN1_NDEF_EXP_OPT(PKCS7, d.digest, PKCS7_DIGEST, 0)), 78280304Sjkim ADB_ENTRY(NID_pkcs7_encrypted, ASN1_NDEF_EXP_OPT(PKCS7, d.encrypted, PKCS7_ENCRYPT, 0)) 79109998Smarkm} ASN1_ADB_END(PKCS7, 0, type, 0, &p7default_tt, NULL); 80109998Smarkm 81238405Sjkim/* PKCS#7 streaming support */ 82238405Sjkimstatic int pk7_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, 83280304Sjkim void *exarg) 84238405Sjkim{ 85280304Sjkim ASN1_STREAM_ARG *sarg = exarg; 86280304Sjkim PKCS7 **pp7 = (PKCS7 **)pval; 87238405Sjkim 88280304Sjkim switch (operation) { 89238405Sjkim 90280304Sjkim case ASN1_OP_STREAM_PRE: 91280304Sjkim if (PKCS7_stream(&sarg->boundary, *pp7) <= 0) 92280304Sjkim return 0; 93280304Sjkim case ASN1_OP_DETACHED_PRE: 94280304Sjkim sarg->ndef_bio = PKCS7_dataInit(*pp7, sarg->out); 95280304Sjkim if (!sarg->ndef_bio) 96280304Sjkim return 0; 97280304Sjkim break; 98238405Sjkim 99280304Sjkim case ASN1_OP_STREAM_POST: 100280304Sjkim case ASN1_OP_DETACHED_POST: 101280304Sjkim if (PKCS7_dataFinal(*pp7, sarg->ndef_bio) <= 0) 102280304Sjkim return 0; 103280304Sjkim break; 104238405Sjkim 105280304Sjkim } 106280304Sjkim return 1; 107238405Sjkim} 108238405Sjkim 109238405SjkimASN1_NDEF_SEQUENCE_cb(PKCS7, pk7_cb) = { 110280304Sjkim ASN1_SIMPLE(PKCS7, type, ASN1_OBJECT), 111280304Sjkim ASN1_ADB_OBJECT(PKCS7) 112238405Sjkim}ASN1_NDEF_SEQUENCE_END_cb(PKCS7, PKCS7) 113109998Smarkm 114109998SmarkmIMPLEMENT_ASN1_FUNCTIONS(PKCS7) 115280304Sjkim 116160814SsimonIMPLEMENT_ASN1_NDEF_FUNCTION(PKCS7) 117280304Sjkim 118109998SmarkmIMPLEMENT_ASN1_DUP_FUNCTION(PKCS7) 119109998Smarkm 120160814SsimonASN1_NDEF_SEQUENCE(PKCS7_SIGNED) = { 121280304Sjkim ASN1_SIMPLE(PKCS7_SIGNED, version, ASN1_INTEGER), 122280304Sjkim ASN1_SET_OF(PKCS7_SIGNED, md_algs, X509_ALGOR), 123280304Sjkim ASN1_SIMPLE(PKCS7_SIGNED, contents, PKCS7), 124280304Sjkim ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNED, cert, X509, 0), 125280304Sjkim ASN1_IMP_SET_OF_OPT(PKCS7_SIGNED, crl, X509_CRL, 1), 126280304Sjkim ASN1_SET_OF(PKCS7_SIGNED, signer_info, PKCS7_SIGNER_INFO) 127160814Ssimon} ASN1_NDEF_SEQUENCE_END(PKCS7_SIGNED) 128109998Smarkm 129109998SmarkmIMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGNED) 130109998Smarkm 131109998Smarkm/* Minor tweak to operation: free up EVP_PKEY */ 132238405Sjkimstatic int si_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, 133280304Sjkim void *exarg) 134109998Smarkm{ 135280304Sjkim if (operation == ASN1_OP_FREE_POST) { 136280304Sjkim PKCS7_SIGNER_INFO *si = (PKCS7_SIGNER_INFO *)*pval; 137280304Sjkim EVP_PKEY_free(si->pkey); 138280304Sjkim } 139280304Sjkim return 1; 140109998Smarkm} 141109998Smarkm 142109998SmarkmASN1_SEQUENCE_cb(PKCS7_SIGNER_INFO, si_cb) = { 143280304Sjkim ASN1_SIMPLE(PKCS7_SIGNER_INFO, version, ASN1_INTEGER), 144280304Sjkim ASN1_SIMPLE(PKCS7_SIGNER_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL), 145280304Sjkim ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_alg, X509_ALGOR), 146280304Sjkim /* NB this should be a SET OF but we use a SEQUENCE OF so the 147280304Sjkim * original order * is retained when the structure is reencoded. 148280304Sjkim * Since the attributes are implicitly tagged this will not affect 149280304Sjkim * the encoding. 150280304Sjkim */ 151280304Sjkim ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNER_INFO, auth_attr, X509_ATTRIBUTE, 0), 152280304Sjkim ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_enc_alg, X509_ALGOR), 153280304Sjkim ASN1_SIMPLE(PKCS7_SIGNER_INFO, enc_digest, ASN1_OCTET_STRING), 154280304Sjkim ASN1_IMP_SET_OF_OPT(PKCS7_SIGNER_INFO, unauth_attr, X509_ATTRIBUTE, 1) 155109998Smarkm} ASN1_SEQUENCE_END_cb(PKCS7_SIGNER_INFO, PKCS7_SIGNER_INFO) 156109998Smarkm 157109998SmarkmIMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGNER_INFO) 158109998Smarkm 159109998SmarkmASN1_SEQUENCE(PKCS7_ISSUER_AND_SERIAL) = { 160280304Sjkim ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, issuer, X509_NAME), 161280304Sjkim ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, serial, ASN1_INTEGER) 162109998Smarkm} ASN1_SEQUENCE_END(PKCS7_ISSUER_AND_SERIAL) 163109998Smarkm 164109998SmarkmIMPLEMENT_ASN1_FUNCTIONS(PKCS7_ISSUER_AND_SERIAL) 165109998Smarkm 166160814SsimonASN1_NDEF_SEQUENCE(PKCS7_ENVELOPE) = { 167280304Sjkim ASN1_SIMPLE(PKCS7_ENVELOPE, version, ASN1_INTEGER), 168280304Sjkim ASN1_SET_OF(PKCS7_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO), 169280304Sjkim ASN1_SIMPLE(PKCS7_ENVELOPE, enc_data, PKCS7_ENC_CONTENT) 170160814Ssimon} ASN1_NDEF_SEQUENCE_END(PKCS7_ENVELOPE) 171109998Smarkm 172109998SmarkmIMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENVELOPE) 173109998Smarkm 174109998Smarkm/* Minor tweak to operation: free up X509 */ 175238405Sjkimstatic int ri_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, 176280304Sjkim void *exarg) 177109998Smarkm{ 178280304Sjkim if (operation == ASN1_OP_FREE_POST) { 179280304Sjkim PKCS7_RECIP_INFO *ri = (PKCS7_RECIP_INFO *)*pval; 180280304Sjkim X509_free(ri->cert); 181280304Sjkim } 182280304Sjkim return 1; 183109998Smarkm} 184109998Smarkm 185109998SmarkmASN1_SEQUENCE_cb(PKCS7_RECIP_INFO, ri_cb) = { 186280304Sjkim ASN1_SIMPLE(PKCS7_RECIP_INFO, version, ASN1_INTEGER), 187280304Sjkim ASN1_SIMPLE(PKCS7_RECIP_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL), 188280304Sjkim ASN1_SIMPLE(PKCS7_RECIP_INFO, key_enc_algor, X509_ALGOR), 189280304Sjkim ASN1_SIMPLE(PKCS7_RECIP_INFO, enc_key, ASN1_OCTET_STRING) 190109998Smarkm} ASN1_SEQUENCE_END_cb(PKCS7_RECIP_INFO, PKCS7_RECIP_INFO) 191109998Smarkm 192109998SmarkmIMPLEMENT_ASN1_FUNCTIONS(PKCS7_RECIP_INFO) 193109998Smarkm 194160814SsimonASN1_NDEF_SEQUENCE(PKCS7_ENC_CONTENT) = { 195280304Sjkim ASN1_SIMPLE(PKCS7_ENC_CONTENT, content_type, ASN1_OBJECT), 196280304Sjkim ASN1_SIMPLE(PKCS7_ENC_CONTENT, algorithm, X509_ALGOR), 197280304Sjkim ASN1_IMP_OPT(PKCS7_ENC_CONTENT, enc_data, ASN1_OCTET_STRING_NDEF, 0) 198160814Ssimon} ASN1_NDEF_SEQUENCE_END(PKCS7_ENC_CONTENT) 199109998Smarkm 200109998SmarkmIMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENC_CONTENT) 201109998Smarkm 202160814SsimonASN1_NDEF_SEQUENCE(PKCS7_SIGN_ENVELOPE) = { 203280304Sjkim ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, version, ASN1_INTEGER), 204280304Sjkim ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO), 205280304Sjkim ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, md_algs, X509_ALGOR), 206280304Sjkim ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, enc_data, PKCS7_ENC_CONTENT), 207280304Sjkim ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, cert, X509, 0), 208280304Sjkim ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, crl, X509_CRL, 1), 209280304Sjkim ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, signer_info, PKCS7_SIGNER_INFO) 210160814Ssimon} ASN1_NDEF_SEQUENCE_END(PKCS7_SIGN_ENVELOPE) 211109998Smarkm 212109998SmarkmIMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGN_ENVELOPE) 213109998Smarkm 214160814SsimonASN1_NDEF_SEQUENCE(PKCS7_ENCRYPT) = { 215280304Sjkim ASN1_SIMPLE(PKCS7_ENCRYPT, version, ASN1_INTEGER), 216280304Sjkim ASN1_SIMPLE(PKCS7_ENCRYPT, enc_data, PKCS7_ENC_CONTENT) 217160814Ssimon} ASN1_NDEF_SEQUENCE_END(PKCS7_ENCRYPT) 218109998Smarkm 219109998SmarkmIMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENCRYPT) 220109998Smarkm 221160814SsimonASN1_NDEF_SEQUENCE(PKCS7_DIGEST) = { 222280304Sjkim ASN1_SIMPLE(PKCS7_DIGEST, version, ASN1_INTEGER), 223280304Sjkim ASN1_SIMPLE(PKCS7_DIGEST, md, X509_ALGOR), 224280304Sjkim ASN1_SIMPLE(PKCS7_DIGEST, contents, PKCS7), 225280304Sjkim ASN1_SIMPLE(PKCS7_DIGEST, digest, ASN1_OCTET_STRING) 226160814Ssimon} ASN1_NDEF_SEQUENCE_END(PKCS7_DIGEST) 227109998Smarkm 228109998SmarkmIMPLEMENT_ASN1_FUNCTIONS(PKCS7_DIGEST) 229109998Smarkm 230109998Smarkm/* Specials for authenticated attributes */ 231109998Smarkm 232280304Sjkim/* 233280304Sjkim * When signing attributes we want to reorder them to match the sorted 234109998Smarkm * encoding. 235109998Smarkm */ 236109998Smarkm 237280304SjkimASN1_ITEM_TEMPLATE(PKCS7_ATTR_SIGN) = 238280304Sjkim ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, PKCS7_ATTRIBUTES, X509_ATTRIBUTE) 239109998SmarkmASN1_ITEM_TEMPLATE_END(PKCS7_ATTR_SIGN) 240109998Smarkm 241280304Sjkim/* 242280304Sjkim * When verifying attributes we need to use the received order. So we use 243280304Sjkim * SEQUENCE OF and tag it to SET OF 244109998Smarkm */ 245109998Smarkm 246280304SjkimASN1_ITEM_TEMPLATE(PKCS7_ATTR_VERIFY) = 247280304Sjkim ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_IMPTAG | ASN1_TFLG_UNIVERSAL, 248280304Sjkim V_ASN1_SET, PKCS7_ATTRIBUTES, X509_ATTRIBUTE) 249109998SmarkmASN1_ITEM_TEMPLATE_END(PKCS7_ATTR_VERIFY) 250238405Sjkim 251238405SjkimIMPLEMENT_ASN1_PRINT_FUNCTION(PKCS7) 252