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DSS Document contains the code for the creation and validation of XAdES, CAdES, PAdES and ASiC signatures.
/**
* DSS - Digital Signature Services
* Copyright (C) 2015 European Commission, provided under the CEF programme
*
* This file is part of the "DSS - Digital Signature Services" project.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package eu.europa.esig.dss.validation;
import static eu.europa.esig.dss.spi.OID.attributeRevocationRefsOid;
import static org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers.id_aa_ets_revocationRefs;
import static org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers.id_aa_ets_revocationValues;
import java.util.Collection;
import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1Set;
import org.bouncycastle.asn1.cms.Attribute;
import org.bouncycastle.asn1.cms.AttributeTable;
import org.bouncycastle.asn1.cms.CMSObjectIdentifiers;
import org.bouncycastle.asn1.esf.CrlOcspRef;
import org.bouncycastle.asn1.esf.OcspListID;
import org.bouncycastle.asn1.esf.OcspResponsesID;
import org.bouncycastle.asn1.esf.RevocationValues;
import org.bouncycastle.asn1.ocsp.BasicOCSPResponse;
import org.bouncycastle.asn1.ocsp.OCSPObjectIdentifiers;
import org.bouncycastle.cert.ocsp.BasicOCSPResp;
import org.bouncycastle.cert.ocsp.OCSPResp;
import org.bouncycastle.cms.CMSSignedData;
import org.bouncycastle.util.Store;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import eu.europa.esig.dss.enumerations.RevocationOrigin;
import eu.europa.esig.dss.enumerations.RevocationRefOrigin;
import eu.europa.esig.dss.spi.DSSASN1Utils;
import eu.europa.esig.dss.spi.DSSRevocationUtils;
import eu.europa.esig.dss.spi.x509.revocation.ocsp.OCSPRef;
import eu.europa.esig.dss.spi.x509.revocation.ocsp.OCSPResponseBinary;
import eu.europa.esig.dss.spi.x509.revocation.ocsp.OfflineOCSPSource;
/**
* OCSPSource that retrieves information from a {@link CMSSignedData} container.
*
*/
@SuppressWarnings("serial")
public abstract class CMSOCSPSource extends OfflineOCSPSource {
private static final Logger LOG = LoggerFactory.getLogger(CMSOCSPSource.class);
protected final transient CMSSignedData cmsSignedData;
protected final transient AttributeTable unsignedAttributes;
/**
* The default constructor for CAdESOCSPSource.
*
* @param cms
* {@link CMSSignedData}
* @param unsignedAttributes
* {@link AttributeTable} unsignedAttributes
*/
protected CMSOCSPSource(final CMSSignedData cms, final AttributeTable unsignedAttributes) {
this.cmsSignedData = cms;
this.unsignedAttributes = unsignedAttributes;
appendContainedOCSPResponses();
}
public void appendContainedOCSPResponses() {
// Add OCSPs from SignedData
collectFromSignedData();
if (unsignedAttributes != null) {
/*
ETSI TS 101 733 V2.2.1 (2013-04) page 43
6.3.4 revocation-values Attribute Definition
This attribute is used to contain the revocation information required for the following forms of extended electronic
signature: CAdES-X Long, ES X-Long Type 1, and CAdES-X Long Type 2, see clause B.1.1 for an illustration of
this form of electronic signature.
The revocation-values attribute is an unsigned attribute. Only a single instance of this attribute shall occur with
an electronic signature. It holds the values of CRLs and OCSP referenced in the
complete-revocation-references attribute.
RevocationValues ::= SEQUENCE {
crlVals [0] SEQUENCE OF CertificateList OPTIONAL,
ocspVals [1] SEQUENCE OF BasicOCSPResponse OPTIONAL,
otherRevVals [2] OtherRevVals OPTIONAL}
*/
collectRevocationValues(unsignedAttributes, id_aa_ets_revocationValues, RevocationOrigin.REVOCATION_VALUES);
/*
* ETSI TS 101 733 V2.2.1 (2013-04) pages 39,41
* 6.2.2 complete-revocation-references Attribute Definition and
* 6.2.4 attribute-revocation-references Attribute Definition
* The complete-revocation-references attribute is an unsigned attribute.
* Only a single instance of this
* attribute shall occur with an electronic signature.
* It references the full set of the CRL, ACRL, or OCSP responses that
* have been used in the validation of the signer, and
* CA certificates used in ES with Complete validation data.
* The complete-revocation-references attribute value has the ASN.1 syntax CompleteRevocationRefs
*
* CompleteRevocationRefs ::= SEQUENCE OF CrlOcspRef
* CrlOcspRef ::= SEQUENCE {
* crlids [0] CRLListID OPTIONAL,
* ocspids [1] OcspListID OPTIONAL,
* otherRev [2] OtherRevRefs OPTIONAL
* }
* AttributeRevocationRefs ::= SEQUENCE OF CrlOcspRef (the same as for CompleteRevocationRefs)
*/
collectRevocationRefs(unsignedAttributes, id_aa_ets_revocationRefs,
RevocationRefOrigin.COMPLETE_REVOCATION_REFS);
/*
* id-aa-ets-attrRevocationRefs OBJECT IDENTIFIER ::= { iso(1) member-body(2)
* us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) id-aa(2) 45}
*/
collectRevocationRefs(unsignedAttributes, attributeRevocationRefsOid,
RevocationRefOrigin.ATTRIBUTE_REVOCATION_REFS);
}
}
private void collectFromSignedData() {
addBasicOcspRespFrom_id_ri_ocsp_response();
addBasicOcspRespFrom_id_pkix_ocsp_basic();
}
private void addBasicOcspRespFrom_id_ri_ocsp_response() {
final Store otherRevocationInfo = cmsSignedData.getOtherRevocationInfo(CMSObjectIdentifiers.id_ri_ocsp_response);
final Collection otherRevocationInfoMatches = otherRevocationInfo.getMatches(null);
for (final Object object : otherRevocationInfoMatches) {
if (object instanceof ASN1Sequence) {
final ASN1Sequence otherRevocationInfoMatch = (ASN1Sequence) object;
final BasicOCSPResp basicOCSPResp;
if (otherRevocationInfoMatch.size() == 4) {
basicOCSPResp = DSSRevocationUtils.getBasicOcspResp(otherRevocationInfoMatch);
} else {
final OCSPResp ocspResp = DSSRevocationUtils.getOcspResp(otherRevocationInfoMatch);
basicOCSPResp = DSSRevocationUtils.fromRespToBasic(ocspResp);
}
OCSPResponseBinary ocspResponseIdentifier = OCSPResponseBinary.build(basicOCSPResp);
ocspResponseIdentifier.setAsn1ObjectIdentifier(CMSObjectIdentifiers.id_ri_ocsp_response);
addBinary(ocspResponseIdentifier, RevocationOrigin.CMS_SIGNED_DATA);
} else {
LOG.warn("Unsupported object type for id_ri_ocsp_response (SHALL be an ASN1Sequence) : {}", object.getClass().getSimpleName());
}
}
}
private void addBasicOcspRespFrom_id_pkix_ocsp_basic() {
final Store otherRevocationInfo = cmsSignedData.getOtherRevocationInfo(OCSPObjectIdentifiers.id_pkix_ocsp_basic);
final Collection otherRevocationInfoMatches = otherRevocationInfo.getMatches(null);
for (final Object object : otherRevocationInfoMatches) {
if (object instanceof ASN1Sequence) {
final ASN1Sequence otherRevocationInfoMatch = (ASN1Sequence) object;
final BasicOCSPResp basicOCSPResp = DSSRevocationUtils.getBasicOcspResp(otherRevocationInfoMatch);
if (basicOCSPResp != null) {
OCSPResponseBinary ocspResponseIdentifier = OCSPResponseBinary.build(basicOCSPResp);
ocspResponseIdentifier.setAsn1ObjectIdentifier(OCSPObjectIdentifiers.id_pkix_ocsp_basic);
addBinary(ocspResponseIdentifier, RevocationOrigin.CMS_SIGNED_DATA);
} else {
LOG.warn("Unable to create an OCSP response from an objects. The entry is skipped.");
}
} else {
LOG.warn("Unsupported object type for id_pkix_ocsp_basic (SHALL be an ASN1Sequence) : {}", object.getClass().getSimpleName());
}
}
}
private void collectRevocationValues(AttributeTable attributes, ASN1ObjectIdentifier revocationValueAttributes,
RevocationOrigin origin) {
final ASN1Encodable attValue = DSSASN1Utils.getAsn1Encodable(attributes, revocationValueAttributes);
if (attValue !=null) {
RevocationValues revocationValues = DSSASN1Utils.getRevocationValues(attValue);
if (revocationValues != null) {
for (final BasicOCSPResponse basicOCSPResponse : revocationValues.getOcspVals()) {
final BasicOCSPResp basicOCSPResp = new BasicOCSPResp(basicOCSPResponse);
OCSPResponseBinary ocspResponseIdentifier = OCSPResponseBinary.build(basicOCSPResp);
addBinary(ocspResponseIdentifier, origin);
}
}
/*
* TODO: should add also OtherRevVals, but: "The syntax and semantics of the
* other revocation values (OtherRevVals) are outside the scope of the present
* document. The definition of the syntax of the other form of revocation
* information is as identified by OtherRevRefType."
*/
}
}
private void collectRevocationRefs(AttributeTable unsignedAttributes, ASN1ObjectIdentifier revocationReferencesAttribute, RevocationRefOrigin origin) {
final Attribute attribute = unsignedAttributes.get(revocationReferencesAttribute);
if (attribute == null) {
return;
}
final ASN1Set attrValues = attribute.getAttrValues();
if (attrValues.size() <= 0) {
return;
}
final ASN1Encodable attrValue = attrValues.getObjectAt(0);
final ASN1Sequence completeRevocationRefs = (ASN1Sequence) attrValue;
for (int i = 0; i < completeRevocationRefs.size(); i++) {
final CrlOcspRef otherCertId = CrlOcspRef.getInstance(completeRevocationRefs.getObjectAt(i));
final OcspListID ocspListID = otherCertId.getOcspids();
if (ocspListID != null) {
for (final OcspResponsesID ocspResponsesID : ocspListID.getOcspResponses()) {
final OCSPRef ocspRef = new OCSPRef(ocspResponsesID);
addRevocationReference(ocspRef, origin);
}
}
}
}
}