/*
* Copyright (c) 2003, 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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 General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package sun.security.provider.certpath;
import java.io.*;
import java.security.*;
import java.security.cert.CertificateException;
import java.security.cert.CertificateParsingException;
import java.security.cert.CertPathValidatorException;
import java.security.cert.CertPathValidatorException.BasicReason;
import java.security.cert.CRLReason;
import java.security.cert.TrustAnchor;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import javax.security.auth.x500.X500Principal;
import sun.security.util.HexDumpEncoder;
import sun.security.action.GetIntegerAction;
import sun.security.x509.*;
import sun.security.util.*;
/**
* This class is used to process an OCSP response.
* The OCSP Response is defined
* in RFC 2560 and the ASN.1 encoding is as follows:
* <pre>
*
* OCSPResponse ::= SEQUENCE {
* responseStatus OCSPResponseStatus,
* responseBytes [0] EXPLICIT ResponseBytes OPTIONAL }
*
* OCSPResponseStatus ::= ENUMERATED {
* successful (0), --Response has valid confirmations
* malformedRequest (1), --Illegal confirmation request
* internalError (2), --Internal error in issuer
* tryLater (3), --Try again later
* --(4) is not used
* sigRequired (5), --Must sign the request
* unauthorized (6) --Request unauthorized
* }
*
* ResponseBytes ::= SEQUENCE {
* responseType OBJECT IDENTIFIER,
* response OCTET STRING }
*
* BasicOCSPResponse ::= SEQUENCE {
* tbsResponseData ResponseData,
* signatureAlgorithm AlgorithmIdentifier,
* signature BIT STRING,
* certs [0] EXPLICIT SEQUENCE OF Certificate OPTIONAL }
*
* The value for signature SHALL be computed on the hash of the DER
* encoding ResponseData.
*
* ResponseData ::= SEQUENCE {
* version [0] EXPLICIT Version DEFAULT v1,
* responderID ResponderID,
* producedAt GeneralizedTime,
* responses SEQUENCE OF SingleResponse,
* responseExtensions [1] EXPLICIT Extensions OPTIONAL }
*
* ResponderID ::= CHOICE {
* byName [1] Name,
* byKey [2] KeyHash }
*
* KeyHash ::= OCTET STRING -- SHA-1 hash of responder's public key
* (excluding the tag and length fields)
*
* SingleResponse ::= SEQUENCE {
* certID CertID,
* certStatus CertStatus,
* thisUpdate GeneralizedTime,
* nextUpdate [0] EXPLICIT GeneralizedTime OPTIONAL,
* singleExtensions [1] EXPLICIT Extensions OPTIONAL }
*
* CertStatus ::= CHOICE {
* good [0] IMPLICIT NULL,
* revoked [1] IMPLICIT RevokedInfo,
* unknown [2] IMPLICIT UnknownInfo }
*
* RevokedInfo ::= SEQUENCE {
* revocationTime GeneralizedTime,
* revocationReason [0] EXPLICIT CRLReason OPTIONAL }
*
* UnknownInfo ::= NULL -- this can be replaced with an enumeration
*
* </pre>
*
* @author Ram Marti
*/
public final class OCSPResponse {
public enum ResponseStatus {
SUCCESSFUL, // Response has valid confirmations
MALFORMED_REQUEST, // Illegal request
INTERNAL_ERROR, // Internal error in responder
TRY_LATER, // Try again later
UNUSED, // is not used
SIG_REQUIRED, // Must sign the request
UNAUTHORIZED // Request unauthorized
};
private static final ResponseStatus[] rsvalues = ResponseStatus.values();
private static final Debug debug = Debug.getInstance("certpath");
private static final boolean dump = debug != null && Debug.isOn("ocsp");
private static final ObjectIdentifier OCSP_BASIC_RESPONSE_OID =
ObjectIdentifier.newInternal(new int[] { 1, 3, 6, 1, 5, 5, 7, 48, 1, 1});
private static final int CERT_STATUS_GOOD = 0;
private static final int CERT_STATUS_REVOKED = 1;
private static final int CERT_STATUS_UNKNOWN = 2;
// ResponderID CHOICE tags
private static final int NAME_TAG = 1;
private static final int KEY_TAG = 2;
// Object identifier for the OCSPSigning key purpose
private static final String KP_OCSP_SIGNING_OID = "1.3.6.1.5.5.7.3.9";
// Default maximum clock skew in milliseconds (15 minutes)
// allowed when checking validity of OCSP responses
private static final int DEFAULT_MAX_CLOCK_SKEW = 900000;
/**
* Integer value indicating the maximum allowable clock skew,
* in milliseconds, to be used for the OCSP check.
*/
private static final int MAX_CLOCK_SKEW = initializeClockSkew();
/**
* Initialize the maximum allowable clock skew by getting the OCSP
* clock skew system property. If the property has not been set, or if its
* value is negative, set the skew to the default.
*/
private static int initializeClockSkew() {
Integer tmp = java.security.AccessController.doPrivileged(
new GetIntegerAction("com.sun.security.ocsp.clockSkew"));
if (tmp == null || tmp < 0) {
return DEFAULT_MAX_CLOCK_SKEW;
}
// Convert to milliseconds, as the system property will be
// specified in seconds
return tmp * 1000;
}
// an array of all of the CRLReasons (used in SingleResponse)
private static final CRLReason[] values = CRLReason.values();
private final ResponseStatus responseStatus;
private final Map<CertId, SingleResponse> singleResponseMap;
private final AlgorithmId sigAlgId;
private final byte[] signature;
private final byte[] tbsResponseData;
private final byte[] responseNonce;
private List<X509CertImpl> certs;
private X509CertImpl signerCert = null;
private final ResponderId respId;
private Date producedAtDate = null;
private final Map<String, java.security.cert.Extension> responseExtensions;
/*
* Create an OCSP response from its ASN.1 DER encoding.
*
* @param bytes The DER-encoded bytes for an OCSP response
*/
public OCSPResponse(byte[] bytes) throws IOException {
if (dump) {
HexDumpEncoder hexEnc = new HexDumpEncoder();
debug.println("OCSPResponse bytes...\n\n" +
hexEnc.encode(bytes) + "\n");
}
DerValue der = new DerValue(bytes);
if (der.tag != DerValue.tag_Sequence) {
throw new IOException("Bad encoding in OCSP response: " +
"expected ASN.1 SEQUENCE tag.");
}
DerInputStream derIn = der.getData();
// responseStatus
int status = derIn.getEnumerated();
if (status >= 0 && status < rsvalues.length) {
responseStatus = rsvalues[status];
} else {
// unspecified responseStatus
throw new IOException("Unknown OCSPResponse status: " + status);
}
if (debug != null) {
debug.println("OCSP response status: " + responseStatus);
}
if (responseStatus != ResponseStatus.SUCCESSFUL) {
// no need to continue, responseBytes are not set.
singleResponseMap = Collections.emptyMap();
certs = new ArrayList<X509CertImpl>();
sigAlgId = null;
signature = null;
tbsResponseData = null;
responseNonce = null;
responseExtensions = Collections.emptyMap();
respId = null;
return;
}
// responseBytes
der = derIn.getDerValue();
if (!der.isContextSpecific((byte)0)) {
throw new IOException("Bad encoding in responseBytes element " +
"of OCSP response: expected ASN.1 context specific tag 0.");
}
DerValue tmp = der.data.getDerValue();
if (tmp.tag != DerValue.tag_Sequence) {
throw new IOException("Bad encoding in responseBytes element " +
"of OCSP response: expected ASN.1 SEQUENCE tag.");
}
// responseType
derIn = tmp.data;
ObjectIdentifier responseType = derIn.getOID();
if (responseType.equals((Object)OCSP_BASIC_RESPONSE_OID)) {
if (debug != null) {
debug.println("OCSP response type: basic");
}
} else {
if (debug != null) {
debug.println("OCSP response type: " + responseType);
}
throw new IOException("Unsupported OCSP response type: " +
responseType);
}
// BasicOCSPResponse
DerInputStream basicOCSPResponse =
new DerInputStream(derIn.getOctetString());
DerValue[] seqTmp = basicOCSPResponse.getSequence(2);
if (seqTmp.length < 3) {
throw new IOException("Unexpected BasicOCSPResponse value");
}
DerValue responseData = seqTmp[0];
// Need the DER encoded ResponseData to verify the signature later
tbsResponseData = seqTmp[0].toByteArray();
// tbsResponseData
if (responseData.tag != DerValue.tag_Sequence) {
throw new IOException("Bad encoding in tbsResponseData " +
"element of OCSP response: expected ASN.1 SEQUENCE tag.");
}
DerInputStream seqDerIn = responseData.data;
DerValue seq = seqDerIn.getDerValue();
// version
if (seq.isContextSpecific((byte)0)) {
// seq[0] is version
if (seq.isConstructed() && seq.isContextSpecific()) {
//System.out.println ("version is available");
seq = seq.data.getDerValue();
int version = seq.getInteger();
if (seq.data.available() != 0) {
throw new IOException("Bad encoding in version " +
" element of OCSP response: bad format");
}
seq = seqDerIn.getDerValue();
}
}
// responderID
respId = new ResponderId(seq.toByteArray());
if (debug != null) {
debug.println("Responder ID: " + respId);
}
// producedAt
seq = seqDerIn.getDerValue();
producedAtDate = seq.getGeneralizedTime();
if (debug != null) {
debug.println("OCSP response produced at: " + producedAtDate);
}
// responses
DerValue[] singleResponseDer = seqDerIn.getSequence(1);
singleResponseMap = new HashMap<>(singleResponseDer.length);
if (debug != null) {
debug.println("OCSP number of SingleResponses: "
+ singleResponseDer.length);
}
for (DerValue srDer : singleResponseDer) {
SingleResponse singleResponse = new SingleResponse(srDer);
singleResponseMap.put(singleResponse.getCertId(), singleResponse);
}
// responseExtensions
Map<String, java.security.cert.Extension> tmpExtMap = new HashMap<>();
if (seqDerIn.available() > 0) {
seq = seqDerIn.getDerValue();
if (seq.isContextSpecific((byte)1)) {
tmpExtMap = parseExtensions(seq);
}
}
responseExtensions = tmpExtMap;
// Attach the nonce value if found in the extension map
Extension nonceExt = (Extension)tmpExtMap.get(
PKIXExtensions.OCSPNonce_Id.toString());
responseNonce = (nonceExt != null) ?
nonceExt.getExtensionValue() : null;
if (debug != null && responseNonce != null) {
debug.println("Response nonce: " + Arrays.toString(responseNonce));
}
// signatureAlgorithmId
sigAlgId = AlgorithmId.parse(seqTmp[1]);
// signature
signature = seqTmp[2].getBitString();
// if seq[3] is available , then it is a sequence of certificates
if (seqTmp.length > 3) {
// certs are available
DerValue seqCert = seqTmp[3];
if (!seqCert.isContextSpecific((byte)0)) {
throw new IOException("Bad encoding in certs element of " +
"OCSP response: expected ASN.1 context specific tag 0.");
}
DerValue[] derCerts = seqCert.getData().getSequence(3);
certs = new ArrayList<X509CertImpl>(derCerts.length);
try {
for (int i = 0; i < derCerts.length; i++) {
X509CertImpl cert =
new X509CertImpl(derCerts[i].toByteArray());
certs.add(cert);
if (debug != null) {
debug.println("OCSP response cert #" + (i + 1) + ": " +
cert.getSubjectX500Principal());
}
}
} catch (CertificateException ce) {
throw new IOException("Bad encoding in X509 Certificate", ce);
}
} else {
certs = new ArrayList<X509CertImpl>();
}
}
void verify(List<CertId> certIds, IssuerInfo issuerInfo,
X509Certificate responderCert, Date date, byte[] nonce)
throws CertPathValidatorException
{
switch (responseStatus) {
case SUCCESSFUL:
break;
case TRY_LATER:
case INTERNAL_ERROR:
throw new CertPathValidatorException(
"OCSP response error: " + responseStatus, null, null, -1,
BasicReason.UNDETERMINED_REVOCATION_STATUS);
case UNAUTHORIZED:
default:
throw new CertPathValidatorException("OCSP response error: " +
responseStatus);
}
// Check that the response includes a response for all of the
// certs that were supplied in the request
for (CertId certId : certIds) {
SingleResponse sr = getSingleResponse(certId);
if (sr == null) {
if (debug != null) {
debug.println("No response found for CertId: " + certId);
}
throw new CertPathValidatorException(
"OCSP response does not include a response for a " +
"certificate supplied in the OCSP request");
}
if (debug != null) {
debug.println("Status of certificate (with serial number " +
certId.getSerialNumber() + ") is: " + sr.getCertStatus());
}
}
// Locate the signer cert
if (signerCert == null) {
// Add the Issuing CA cert and/or Trusted Responder cert to the list
// of certs from the OCSP response
try {
if (issuerInfo.getCertificate() != null) {
certs.add(X509CertImpl.toImpl(issuerInfo.getCertificate()));
}
if (responderCert != null) {
certs.add(X509CertImpl.toImpl(responderCert));
}
} catch (CertificateException ce) {
throw new CertPathValidatorException(
"Invalid issuer or trusted responder certificate", ce);
}
if (respId.getType() == ResponderId.Type.BY_NAME) {
X500Principal rName = respId.getResponderName();
for (X509CertImpl cert : certs) {
if (cert.getSubjectX500Principal().equals(rName)) {
signerCert = cert;
break;
}
}
} else if (respId.getType() == ResponderId.Type.BY_KEY) {
KeyIdentifier ridKeyId = respId.getKeyIdentifier();
for (X509CertImpl cert : certs) {
// Match responder's key identifier against the cert's SKID
// This will match if the SKID is encoded using the 160-bit
// SHA-1 hash method as defined in RFC 5280.
KeyIdentifier certKeyId = cert.getSubjectKeyId();
if (certKeyId != null && ridKeyId.equals(certKeyId)) {
signerCert = cert;
break;
} else {
// The certificate does not have a SKID or may have
// been using a different algorithm (ex: see RFC 7093).
// Check if the responder's key identifier matches
// against a newly generated key identifier of the
// cert's public key using the 160-bit SHA-1 method.
try {
certKeyId = new KeyIdentifier(cert.getPublicKey());
} catch (IOException e) {
// ignore
}
if (ridKeyId.equals(certKeyId)) {
signerCert = cert;
break;
}
}
}
}
}
// Check whether the signer cert returned by the responder is trusted
if (signerCert != null) {
// Check if the response is signed by the issuing CA
if (signerCert.getSubjectX500Principal().equals(
issuerInfo.getName()) &&
signerCert.getPublicKey().equals(
issuerInfo.getPublicKey())) {
if (debug != null) {
debug.println("OCSP response is signed by the target's " +
"Issuing CA");
}
// cert is trusted, now verify the signed response
// Check if the response is signed by a trusted responder
} else if (signerCert.equals(responderCert)) {
if (debug != null) {
debug.println("OCSP response is signed by a Trusted " +
"Responder");
}
// cert is trusted, now verify the signed response
// Check if the response is signed by an authorized responder
} else if (signerCert.getIssuerX500Principal().equals(
issuerInfo.getName())) {
// Check for the OCSPSigning key purpose
try {
List<String> keyPurposes = signerCert.getExtendedKeyUsage();
if (keyPurposes == null ||
!keyPurposes.contains(KP_OCSP_SIGNING_OID)) {
throw new CertPathValidatorException(
"Responder's certificate not valid for signing " +
"OCSP responses");
}
} catch (CertificateParsingException cpe) {
// assume cert is not valid for signing
throw new CertPathValidatorException(
"Responder's certificate not valid for signing " +
"OCSP responses", cpe);
}
// Check algorithm constraints specified in security property
// "jdk.certpath.disabledAlgorithms".
AlgorithmChecker algChecker =
new AlgorithmChecker(issuerInfo.getAnchor(), date);
algChecker.init(false);
algChecker.check(signerCert, Collections.<String>emptySet());
// check the validity
try {
if (date == null) {
signerCert.checkValidity();
} else {
signerCert.checkValidity(date);
}
} catch (CertificateException e) {
throw new CertPathValidatorException(
"Responder's certificate not within the " +
"validity period", e);
}
// check for revocation
//
// A CA may specify that an OCSP client can trust a
// responder for the lifetime of the responder's
// certificate. The CA does so by including the
// extension id-pkix-ocsp-nocheck.
//
Extension noCheck =
signerCert.getExtension(PKIXExtensions.OCSPNoCheck_Id);
if (noCheck != null) {
if (debug != null) {
debug.println("Responder's certificate includes " +
"the extension id-pkix-ocsp-nocheck.");
}
} else {
// we should do the revocation checking of the
// authorized responder in a future update.
}
// verify the signature
try {
signerCert.verify(issuerInfo.getPublicKey());
if (debug != null) {
debug.println("OCSP response is signed by an " +
"Authorized Responder");
}
// cert is trusted, now verify the signed response
} catch (GeneralSecurityException e) {
signerCert = null;
}
} else {
throw new CertPathValidatorException(
"Responder's certificate is not authorized to sign " +
"OCSP responses");
}
}
// Confirm that the signed response was generated using the public
// key from the trusted responder cert
if (signerCert != null) {
// Check algorithm constraints specified in security property
// "jdk.certpath.disabledAlgorithms".
AlgorithmChecker.check(signerCert.getPublicKey(), sigAlgId);
if (!verifySignature(signerCert)) {
throw new CertPathValidatorException(
"Error verifying OCSP Response's signature");
}
} else {
// Need responder's cert in order to verify the signature
throw new CertPathValidatorException(
"Unable to verify OCSP Response's signature");
}
if (nonce != null) {
if (responseNonce != null && !Arrays.equals(nonce, responseNonce)) {
throw new CertPathValidatorException("Nonces don't match");
}
}
// Check freshness of OCSPResponse
long now = (date == null) ? System.currentTimeMillis() : date.getTime();
Date nowPlusSkew = new Date(now + MAX_CLOCK_SKEW);
Date nowMinusSkew = new Date(now - MAX_CLOCK_SKEW);
for (SingleResponse sr : singleResponseMap.values()) {
if (debug != null) {
String until = "";
if (sr.nextUpdate != null) {
until = " until " + sr.nextUpdate;
}
debug.println("OCSP response validity interval is from " +
sr.thisUpdate + until);
debug.println("Checking validity of OCSP response on: " +
new Date(now));
}
// Check that the test date is within the validity interval:
// [ thisUpdate - MAX_CLOCK_SKEW,
// MAX(thisUpdate, nextUpdate) + MAX_CLOCK_SKEW ]
if (nowPlusSkew.before(sr.thisUpdate) ||
nowMinusSkew.after(
sr.nextUpdate != null ? sr.nextUpdate : sr.thisUpdate))
{
throw new CertPathValidatorException(
"Response is unreliable: its validity " +
"interval is out-of-date");
}
}
}
/**
* Returns the OCSP ResponseStatus.
*
* @return the {@code ResponseStatus} for this OCSP response
*/
public ResponseStatus getResponseStatus() {
return responseStatus;
}
/*
* Verify the signature of the OCSP response.
*/
private boolean verifySignature(X509Certificate cert)
throws CertPathValidatorException {
try {
Signature respSignature = Signature.getInstance(sigAlgId.getName());
respSignature.initVerify(cert.getPublicKey());
respSignature.update(tbsResponseData);
if (respSignature.verify(signature)) {
if (debug != null) {
debug.println("Verified signature of OCSP Response");
}
return true;
} else {
if (debug != null) {
debug.println(
"Error verifying signature of OCSP Response");
}
return false;
}
} catch (InvalidKeyException | NoSuchAlgorithmException |
SignatureException e)
{
throw new CertPathValidatorException(e);
}
}
/**
* Returns the SingleResponse of the specified CertId, or null if
* there is no response for that CertId.
*
* @param certId the {@code CertId} for a {@code SingleResponse} to be
* searched for in the OCSP response.
*
* @return the {@code SingleResponse} for the provided {@code CertId},
* or {@code null} if it is not found.
*/
public SingleResponse getSingleResponse(CertId certId) {
return singleResponseMap.get(certId);
}
/**
* Return a set of all CertIds in this {@code OCSPResponse}
*
* @return an unmodifiable set containing every {@code CertId} in this
* response.
*/
public Set<CertId> getCertIds() {
return Collections.unmodifiableSet(singleResponseMap.keySet());
}
/*
* Returns the certificate for the authority that signed the OCSP response.
*/
X509Certificate getSignerCertificate() {
return signerCert; // set in verify()
}
/**
* Get the {@code ResponderId} from this {@code OCSPResponse}
*
* @return the {@code ResponderId} from this response or {@code null}
* if no responder ID is in the body of the response (e.g. a
* response with a status other than SUCCESS.
*/
public ResponderId getResponderId() {
return respId;
}
/**
* Provide a String representation of an OCSPResponse
*
* @return a human-readable representation of the OCSPResponse
*/
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("OCSP Response:\n");
sb.append("Response Status: ").append(responseStatus).append("\n");
sb.append("Responder ID: ").append(respId).append("\n");
sb.append("Produced at: ").append(producedAtDate).append("\n");
int count = singleResponseMap.size();
sb.append(count).append(count == 1 ?
" response:\n" : " responses:\n");
for (SingleResponse sr : singleResponseMap.values()) {
sb.append(sr).append("\n");
}
if (responseExtensions != null && responseExtensions.size() > 0) {
count = responseExtensions.size();
sb.append(count).append(count == 1 ?
" extension:\n" : " extensions:\n");
for (String extId : responseExtensions.keySet()) {
sb.append(responseExtensions.get(extId)).append("\n");
}
}
return sb.toString();
}
/**
* Build a String-Extension map from DER encoded data.
* @param derVal A {@code DerValue} object built from a SEQUENCE of
* extensions
*
* @return a {@code Map} using the OID in string form as the keys. If no
* extensions are found or an empty SEQUENCE is passed in, then
* an empty {@code Map} will be returned.
*
* @throws IOException if any decoding errors occur.
*/
private static Map<String, java.security.cert.Extension>
parseExtensions(DerValue derVal) throws IOException {
DerValue[] extDer = derVal.data.getSequence(3);
Map<String, java.security.cert.Extension> extMap =
new HashMap<>(extDer.length);
for (DerValue extDerVal : extDer) {
Extension ext = new Extension(extDerVal);
if (debug != null) {
debug.println("Extension: " + ext);
}
// We don't support any extensions yet. Therefore, if it
// is critical we must throw an exception because we
// don't know how to process it.
if (ext.isCritical()) {
throw new IOException("Unsupported OCSP critical extension: " +
ext.getExtensionId());
}
extMap.put(ext.getId(), ext);
}
return extMap;
}
/*
* A class representing a single OCSP response.
*/
public static final class SingleResponse implements OCSP.RevocationStatus {
private final CertId certId;
private final CertStatus certStatus;
private final Date thisUpdate;
private final Date nextUpdate;
private final Date revocationTime;
private final CRLReason revocationReason;
private final Map<String, java.security.cert.Extension> singleExtensions;
private SingleResponse(DerValue der) throws IOException {
if (der.tag != DerValue.tag_Sequence) {
throw new IOException("Bad ASN.1 encoding in SingleResponse");
}
DerInputStream tmp = der.data;
certId = new CertId(tmp.getDerValue().data);
DerValue derVal = tmp.getDerValue();
short tag = (byte)(derVal.tag & 0x1f);
if (tag == CERT_STATUS_REVOKED) {
certStatus = CertStatus.REVOKED;
revocationTime = derVal.data.getGeneralizedTime();
if (derVal.data.available() != 0) {
DerValue dv = derVal.data.getDerValue();
tag = (byte)(dv.tag & 0x1f);
if (tag == 0) {
int reason = dv.data.getEnumerated();
// if reason out-of-range just leave as UNSPECIFIED
if (reason >= 0 && reason < values.length) {
revocationReason = values[reason];
} else {
revocationReason = CRLReason.UNSPECIFIED;
}
} else {
revocationReason = CRLReason.UNSPECIFIED;
}
} else {
revocationReason = CRLReason.UNSPECIFIED;
}
// RevokedInfo
if (debug != null) {
debug.println("Revocation time: " + revocationTime);
debug.println("Revocation reason: " + revocationReason);
}
} else {
revocationTime = null;
revocationReason = null;
if (tag == CERT_STATUS_GOOD) {
certStatus = CertStatus.GOOD;
} else if (tag == CERT_STATUS_UNKNOWN) {
certStatus = CertStatus.UNKNOWN;
} else {
throw new IOException("Invalid certificate status");
}
}
thisUpdate = tmp.getGeneralizedTime();
if (debug != null) {
debug.println("thisUpdate: " + thisUpdate);
}
// Parse optional fields like nextUpdate and singleExtensions
Date tmpNextUpdate = null;
Map<String, java.security.cert.Extension> tmpMap = null;
// Check for the first optional item, it could be nextUpdate
// [CONTEXT 0] or singleExtensions [CONTEXT 1]
if (tmp.available() > 0) {
derVal = tmp.getDerValue();
// nextUpdate processing
if (derVal.isContextSpecific((byte)0)) {
tmpNextUpdate = derVal.data.getGeneralizedTime();
if (debug != null) {
debug.println("nextUpdate: " + tmpNextUpdate);
}
// If more data exists in the singleResponse, it
// can only be singleExtensions. Get this DER value
// for processing in the next block
derVal = tmp.available() > 0 ? tmp.getDerValue() : null;
}
// singleExtensions processing
if (derVal != null) {
if (derVal.isContextSpecific((byte)1)) {
tmpMap = parseExtensions(derVal);
// There should not be any other items in the
// singleResponse at this point.
if (tmp.available() > 0) {
throw new IOException(tmp.available() +
" bytes of additional data in singleResponse");
}
} else {
// Unknown item in the singleResponse
throw new IOException("Unsupported singleResponse " +
"item, tag = " + String.format("%02X", derVal.tag));
}
}
}
nextUpdate = tmpNextUpdate;
singleExtensions = (tmpMap != null) ? tmpMap :
Collections.emptyMap();
if (debug != null) {
for (java.security.cert.Extension ext :
singleExtensions.values()) {
debug.println("singleExtension: " + ext);
}
}
}
/*
* Return the certificate's revocation status code
*/
@Override
public CertStatus getCertStatus() {
return certStatus;
}
/**
* Get the Cert ID that this SingleResponse is for.
*
* @return the {@code CertId} for this {@code SingleResponse}
*/
public CertId getCertId() {
return certId;
}
/**
* Get the {@code thisUpdate} field from this {@code SingleResponse}.
*
* @return a {@link Date} object containing the thisUpdate date
*/
public Date getThisUpdate() {
return (thisUpdate != null ? (Date) thisUpdate.clone() : null);
}
/**
* Get the {@code nextUpdate} field from this {@code SingleResponse}.
*
* @return a {@link Date} object containing the nexUpdate date or
* {@code null} if a nextUpdate field is not present in the response.
*/
public Date getNextUpdate() {
return (nextUpdate != null ? (Date) nextUpdate.clone() : null);
}
/**
* Get the {@code revocationTime} field from this
* {@code SingleResponse}.
*
* @return a {@link Date} object containing the revocationTime date or
* {@code null} if the {@code SingleResponse} does not have a status
* of {@code REVOKED}.
*/
@Override
public Date getRevocationTime() {
return (revocationTime != null ? (Date) revocationTime.clone() :
null);
}
/**
* Get the {@code revocationReason} field for the
* {@code SingleResponse}.
*
* @return a {@link CRLReason} containing the revocation reason, or
* {@code null} if a revocation reason was not provided or the
* response status is not {@code REVOKED}.
*/
@Override
public CRLReason getRevocationReason() {
return revocationReason;
}
/**
* Get the {@code singleExtensions} for this {@code SingleResponse}.
*
* @return a {@link Map} of {@link Extension} objects, keyed by
* their OID value in string form.
*/
@Override
public Map<String, java.security.cert.Extension> getSingleExtensions() {
return Collections.unmodifiableMap(singleExtensions);
}
/**
* Construct a string representation of a single OCSP response.
*/
@Override public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("SingleResponse:\n");
sb.append(certId);
sb.append("\nCertStatus: ").append(certStatus).append("\n");
if (certStatus == CertStatus.REVOKED) {
sb.append("revocationTime is ");
sb.append(revocationTime).append("\n");
sb.append("revocationReason is ");
sb.append(revocationReason).append("\n");
}
sb.append("thisUpdate is ").append(thisUpdate).append("\n");
if (nextUpdate != null) {
sb.append("nextUpdate is ").append(nextUpdate).append("\n");
}
for (java.security.cert.Extension ext : singleExtensions.values()) {
sb.append("singleExtension: ");
sb.append(ext.toString()).append("\n");
}
return sb.toString();
}
}
/**
* Helper class that allows consumers to pass in issuer information. This
* will always consist of the issuer's name and public key, but may also
* contain a certificate if the originating data is in that form. The
* trust anchor for the certificate chain will be included for certpath
* disabled algorithm checking.
*/
static final class IssuerInfo {
private final TrustAnchor anchor;
private final X509Certificate certificate;
private final X500Principal name;
private final PublicKey pubKey;
IssuerInfo(TrustAnchor anchor) {
this(anchor, (anchor != null) ? anchor.getTrustedCert() : null);
}
IssuerInfo(X509Certificate issuerCert) {
this(null, issuerCert);
}
IssuerInfo(TrustAnchor anchor, X509Certificate issuerCert) {
if (anchor == null && issuerCert == null) {
throw new NullPointerException("TrustAnchor and issuerCert " +
"cannot be null");
}
this.anchor = anchor;
if (issuerCert != null) {
name = issuerCert.getSubjectX500Principal();
pubKey = issuerCert.getPublicKey();
certificate = issuerCert;
} else {
name = anchor.getCA();
pubKey = anchor.getCAPublicKey();
certificate = anchor.getTrustedCert();
}
}
/**
* Get the certificate in this IssuerInfo if present.
*
* @return the {@code X509Certificate} used to create this IssuerInfo
* object, or {@code null} if a certificate was not used in its
* creation.
*/
X509Certificate getCertificate() {
return certificate;
}
/**
* Get the name of this issuer.
*
* @return an {@code X500Principal} corresponding to this issuer's
* name. If derived from an issuer's {@code X509Certificate} this
* would be equivalent to the certificate subject name.
*/
X500Principal getName() {
return name;
}
/**
* Get the public key for this issuer.
*
* @return a {@code PublicKey} for this issuer.
*/
PublicKey getPublicKey() {
return pubKey;
}
/**
* Get the TrustAnchor for the certificate chain.
*
* @return a {@code TrustAnchor}.
*/
TrustAnchor getAnchor() {
return anchor;
}
/**
* Create a string representation of this IssuerInfo.
*
* @return a {@code String} form of this IssuerInfo object.
*/
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("Issuer Info:\n");
sb.append("Name: ").append(name.toString()).append("\n");
sb.append("Public Key:\n").append(pubKey.toString()).append("\n");
return sb.toString();
}
}
}