Java example source code file (OCSPResponse.java)
The OCSPResponse.java Java example source code
/*
* Copyright (c) 2003, 2014, 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 javax.security.auth.x500.X500Principal;
import sun.misc.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 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 seconds,
* 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 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 X500Principal responderName = null;
private KeyIdentifier responderKeyId = null;
/*
* Create an OCSP response from its ASN.1 DER encoding.
*/
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;
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
short tag = (byte)(seq.tag & 0x1f);
if (tag == NAME_TAG) {
responderName = new X500Principal(seq.getData().toByteArray());
if (debug != null) {
debug.println("Responder's name: " + responderName);
}
} else if (tag == KEY_TAG) {
responderKeyId = new KeyIdentifier(seq.getData().getOctetString());
if (debug != null) {
debug.println("Responder's key ID: " +
Debug.toString(responderKeyId.getIdentifier()));
}
} else {
throw new IOException("Bad encoding in responderID element of " +
"OCSP response: expected ASN.1 context specific tag 0 or 1");
}
// producedAt
seq = seqDerIn.getDerValue();
if (debug != null) {
Date producedAtDate = seq.getGeneralizedTime();
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 (int i = 0; i < singleResponseDer.length; i++) {
SingleResponse singleResponse =
new SingleResponse(singleResponseDer[i]);
singleResponseMap.put(singleResponse.getCertId(), singleResponse);
}
// responseExtensions
byte[] nonce = null;
if (seqDerIn.available() > 0) {
seq = seqDerIn.getDerValue();
if (seq.isContextSpecific((byte)1)) {
DerValue[] responseExtDer = seq.data.getSequence(3);
for (int i = 0; i < responseExtDer.length; i++) {
Extension ext = new Extension(responseExtDer[i]);
if (debug != null) {
debug.println("OCSP extension: " + ext);
}
// Only the NONCE extension is recognized
if (ext.getExtensionId().equals((Object)
OCSP.NONCE_EXTENSION_OID))
{
nonce = ext.getExtensionValue();
} else if (ext.isCritical()) {
throw new IOException(
"Unsupported OCSP critical extension: " +
ext.getExtensionId());
}
}
}
}
responseNonce = nonce;
// 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, X509Certificate issuerCert,
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 {
certs.add(X509CertImpl.toImpl(issuerCert));
if (responderCert != null) {
certs.add(X509CertImpl.toImpl(responderCert));
}
} catch (CertificateException ce) {
throw new CertPathValidatorException(
"Invalid issuer or trusted responder certificate", ce);
}
if (responderName != null) {
for (X509CertImpl cert : certs) {
if (cert.getSubjectX500Principal().equals(responderName)) {
signerCert = cert;
break;
}
}
} else if (responderKeyId != null) {
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 && responderKeyId.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 (responderKeyId.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.equals(issuerCert)) {
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(
issuerCert.getSubjectX500Principal())) {
// 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(
new TrustAnchor(issuerCert, null));
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(issuerCert.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");
}
// Check freshness of OCSPResponse
if (nonce != null) {
if (responseNonce != null && !Arrays.equals(nonce, responseNonce)) {
throw new CertPathValidatorException("Nonces don't match");
}
}
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("Response's validity interval is from " +
sr.thisUpdate + until);
}
// Check that the test date is within the validity interval
if ((sr.thisUpdate != null && nowPlusSkew.before(sr.thisUpdate)) ||
(sr.nextUpdate != null && nowMinusSkew.after(sr.nextUpdate)))
{
throw new CertPathValidatorException(
"Response is unreliable: its validity " +
"interval is out-of-date");
}
}
}
/**
* Returns the OCSP ResponseStatus.
*/
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.
*/
SingleResponse getSingleResponse(CertId certId) {
return singleResponseMap.get(certId);
}
/*
* Returns the certificate for the authority that signed the OCSP response.
*/
X509Certificate getSignerCertificate() {
return signerCert; // set in verify()
}
/*
* A class representing a single OCSP response.
*/
final static 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 = CRLReason.UNSPECIFIED;
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 (tmp.available() == 0) {
// we are done
nextUpdate = null;
} else {
derVal = tmp.getDerValue();
tag = (byte)(derVal.tag & 0x1f);
if (tag == 0) {
// next update
nextUpdate = derVal.data.getGeneralizedTime();
if (tmp.available() == 0) {
// we are done
} else {
derVal = tmp.getDerValue();
tag = (byte)(derVal.tag & 0x1f);
}
} else {
nextUpdate = null;
}
}
// singleExtensions
if (tmp.available() > 0) {
derVal = tmp.getDerValue();
if (derVal.isContextSpecific((byte)1)) {
DerValue[] singleExtDer = derVal.data.getSequence(3);
singleExtensions =
new HashMap<String, java.security.cert.Extension>
(singleExtDer.length);
for (int i = 0; i < singleExtDer.length; i++) {
Extension ext = new Extension(singleExtDer[i]);
if (debug != null) {
debug.println("OCSP single 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());
}
singleExtensions.put(ext.getId(), ext);
}
} else {
singleExtensions = Collections.emptyMap();
}
} else {
singleExtensions = Collections.emptyMap();
}
}
/*
* Return the certificate's revocation status code
*/
@Override public CertStatus getCertStatus() {
return certStatus;
}
private CertId getCertId() {
return certId;
}
@Override public Date getRevocationTime() {
return (Date) revocationTime.clone();
}
@Override public CRLReason getRevocationReason() {
return revocationReason;
}
@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: "+ certStatus + "\n");
if (certStatus == CertStatus.REVOKED) {
sb.append("revocationTime is " + revocationTime + "\n");
sb.append("revocationReason is " + revocationReason + "\n");
}
sb.append("thisUpdate is " + thisUpdate + "\n");
if (nextUpdate != null) {
sb.append("nextUpdate is " + nextUpdate + "\n");
}
return sb.toString();
}
}
}
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