@SuppressWarnings("deprecation")
private byte[] extractKeyData(DerInputStream stream)
throws IOException, NoSuchAlgorithmException, CertificateException {
byte[] returnValue = null;
DerValue[] safeBags = stream.getSequence(2);
int count = safeBags.length;
/*
* Spin over the SafeBags.
*/
for (int i = 0; i < count; i++) {
ObjectIdentifier bagId;
DerInputStream sbi;
DerValue bagValue;
Object bagItem = null;
sbi = safeBags[i].toDerInputStream();
bagId = sbi.getOID();
bagValue = sbi.getDerValue();
if (!bagValue.isContextSpecific((byte) 0)) {
throw new IOException("unsupported PKCS12 bag value type " + bagValue.tag);
}
bagValue = bagValue.data.getDerValue();
if (bagId.equals(PKCS8ShroudedKeyBag_OID)) {
// got what we were looking for. Return it.
returnValue = bagValue.toByteArray();
} else {
// log error message for "unsupported PKCS12 bag type"
System.out.println("Unsupported bag type '" + bagId + "'");
}
}
return returnValue;
}
// Makes sure serialized form can be deserialized
private static void check(byte[] in, String oid) throws Exception {
ObjectIdentifier o =
(ObjectIdentifier) (new ObjectInputStream(new ByteArrayInputStream(in)).readObject());
if (!o.toString().equals(oid)) {
throw new Exception("Read Fail " + o + ", not " + oid);
}
}
@SuppressWarnings("deprecation")
private byte[] fetchPrivateKeyFromBag(byte[] privateKeyInfo)
throws IOException, NoSuchAlgorithmException, CertificateException {
byte[] returnValue = null;
DerValue val = new DerValue(new ByteArrayInputStream(privateKeyInfo));
DerInputStream s = val.toDerInputStream();
int version = s.getInteger();
if (version != 3) {
throw new IOException("PKCS12 keystore not in version 3 format");
}
/*
* Read the authSafe.
*/
byte[] authSafeData;
ContentInfo authSafe = new ContentInfo(s);
ObjectIdentifier contentType = authSafe.getContentType();
if (contentType.equals(ContentInfo.DATA_OID)) {
authSafeData = authSafe.getData();
} else /* signed data */ {
throw new IOException("public key protected PKCS12 not supported");
}
DerInputStream as = new DerInputStream(authSafeData);
DerValue[] safeContentsArray = as.getSequence(2);
int count = safeContentsArray.length;
/*
* Spin over the ContentInfos.
*/
for (int i = 0; i < count; i++) {
byte[] safeContentsData;
ContentInfo safeContents;
DerInputStream sci;
byte[] eAlgId = null;
sci = new DerInputStream(safeContentsArray[i].toByteArray());
safeContents = new ContentInfo(sci);
contentType = safeContents.getContentType();
safeContentsData = null;
if (contentType.equals(ContentInfo.DATA_OID)) {
safeContentsData = safeContents.getData();
} else if (contentType.equals(ContentInfo.ENCRYPTED_DATA_OID)) {
// The password was used to export the private key from the keychain.
// The Keychain won't export the key with encrypted data, so we don't need
// to worry about it.
continue;
} else {
throw new IOException("public key protected PKCS12" + " not supported");
}
DerInputStream sc = new DerInputStream(safeContentsData);
returnValue = extractKeyData(sc);
}
return returnValue;
}
/**
* Returns the key associated with the given alias, using the given password to recover it.
*
* @param alias the alias name
* @param password the password for recovering the key. This password is used internally as the
* key is exported in a PKCS12 format.
* @return the requested key, or null if the given alias does not exist or does not identify a
* <i>key entry</i>.
* @exception NoSuchAlgorithmException if the algorithm for recovering the key cannot be found
* @exception UnrecoverableKeyException if the key cannot be recovered (e.g., the given password
* is wrong).
*/
public Key engineGetKey(String alias, char[] password)
throws NoSuchAlgorithmException, UnrecoverableKeyException {
permissionCheck();
// An empty password is rejected by MacOS API, no private key data
// is exported. If no password is passed (as is the case when
// this implementation is used as browser keystore in various
// deployment scenarios like Webstart, JFX and applets), create
// a dummy password so MacOS API is happy.
if (password == null || password.length == 0) {
// Must not be a char array with only a 0, as this is an empty
// string.
if (random == null) {
random = new SecureRandom();
}
password = Long.toString(random.nextLong()).toCharArray();
}
Object entry = entries.get(alias.toLowerCase());
if (entry == null || !(entry instanceof KeyEntry)) {
return null;
}
// This call gives us a PKCS12 bag, with the key inside it.
byte[] exportedKeyInfo = _getEncodedKeyData(((KeyEntry) entry).keyRef, password);
if (exportedKeyInfo == null) {
return null;
}
PrivateKey returnValue = null;
try {
byte[] pkcs8KeyData = fetchPrivateKeyFromBag(exportedKeyInfo);
byte[] encryptedKey;
AlgorithmParameters algParams;
ObjectIdentifier algOid;
try {
// get the encrypted private key
EncryptedPrivateKeyInfo encrInfo = new EncryptedPrivateKeyInfo(pkcs8KeyData);
encryptedKey = encrInfo.getEncryptedData();
// parse Algorithm parameters
DerValue val = new DerValue(encrInfo.getAlgorithm().encode());
DerInputStream in = val.toDerInputStream();
algOid = in.getOID();
algParams = parseAlgParameters(in);
} catch (IOException ioe) {
UnrecoverableKeyException uke =
new UnrecoverableKeyException(
"Private key not stored as " + "PKCS#8 EncryptedPrivateKeyInfo: " + ioe);
uke.initCause(ioe);
throw uke;
}
// Use JCE to decrypt the data using the supplied password.
SecretKey skey = getPBEKey(password);
Cipher cipher = Cipher.getInstance(algOid.toString());
cipher.init(Cipher.DECRYPT_MODE, skey, algParams);
byte[] decryptedPrivateKey = cipher.doFinal(encryptedKey);
PKCS8EncodedKeySpec kspec = new PKCS8EncodedKeySpec(decryptedPrivateKey);
// Parse the key algorithm and then use a JCA key factory to create the private key.
DerValue val = new DerValue(decryptedPrivateKey);
DerInputStream in = val.toDerInputStream();
// Ignore this -- version should be 0.
int i = in.getInteger();
// Get the Algorithm ID next
DerValue[] value = in.getSequence(2);
AlgorithmId algId = new AlgorithmId(value[0].getOID());
String algName = algId.getName();
// Get a key factory for this algorithm. It's likely to be 'RSA'.
KeyFactory kfac = KeyFactory.getInstance(algName);
returnValue = kfac.generatePrivate(kspec);
} catch (Exception e) {
UnrecoverableKeyException uke =
new UnrecoverableKeyException("Get Key failed: " + e.getMessage());
uke.initCause(e);
throw uke;
}
return returnValue;
}
public void acceptSecContext(InputStream inStream, OutputStream outStream) throws GSSException {
if (mechCtxt != null && currentState != IN_PROGRESS) {
throw new GSSExceptionImpl(GSSException.FAILURE, "Illegal call to acceptSecContext");
}
GSSHeader gssHeader = null;
int inTokenLen = -1;
GSSCredentialSpi credElement = null;
try {
if (mechCtxt == null) {
// mechOid will be null for an acceptor's context
gssHeader = new GSSHeader(inStream);
inTokenLen = gssHeader.getMechTokenLength();
/*
* Convert ObjectIdentifier to Oid
*/
objId = gssHeader.getOid();
mechOid = new Oid(objId.toString());
// System.out.println("Entered GSSContextImpl.acceptSecContext"
// + " with mechanism = " + mechOid);
if (myCred != null) {
credElement = myCred.getElement(mechOid, false);
}
mechCtxt = gssManager.getMechanismContext(credElement, mechOid);
mechCtxt.setChannelBinding(channelBindings);
currentState = IN_PROGRESS;
} else {
if (mechCtxt.getProvider().getName().equals("SunNativeGSS")
|| (GSSUtil.isSpNegoMech(mechOid))) {
// do not parse GSS header for native provider and SPNEGO
} else {
// parse GSS Header
gssHeader = new GSSHeader(inStream);
if (!gssHeader.getOid().equals((Object) objId))
throw new GSSExceptionImpl(
GSSException.DEFECTIVE_TOKEN,
"Mechanism not equal to " + mechOid.toString() + " in acceptSecContext token");
inTokenLen = gssHeader.getMechTokenLength();
}
}
byte[] obuf = mechCtxt.acceptSecContext(inStream, inTokenLen);
if (obuf != null) {
int retVal = obuf.length;
if (mechCtxt.getProvider().getName().equals("SunNativeGSS")
|| (GSSUtil.isSpNegoMech(mechOid))) {
// do not add GSS header for native provider and SPNEGO
} else {
// add GSS header
gssHeader = new GSSHeader(objId, obuf.length);
retVal += gssHeader.encode(outStream);
}
outStream.write(obuf);
}
if (mechCtxt.isEstablished()) {
currentState = READY;
}
} catch (IOException e) {
throw new GSSExceptionImpl(GSSException.DEFECTIVE_TOKEN, e.getMessage());
}
}
/* */ static ECParameterSpec getECParameterSpec(ObjectIdentifier paramObjectIdentifier)
/* */ {
/* 76 */ return getECParameterSpec(paramObjectIdentifier.toString());
/* */ }
/*
* Create an OCSP response from its ASN.1 DER encoding.
*/
OCSPResponse(byte[] bytes) throws IOException {
if (dump) {
HexDumpEncoder hexEnc = new HexDumpEncoder();
System.out.println("OCSPResponse bytes are...");
System.out.println(hexEnc.encode(bytes));
}
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 = Collections.<X509CertImpl>emptyList();
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) {
if (debug != null) {
X500Principal responderName = new X500Principal(seq.getData().toByteArray());
debug.println("OCSP Responder name: " + responderName);
}
} else if (tag == KEY_TAG) {
if (debug != null) {
byte[] responderKey = seq.getData().getOctetString();
debug.println("OCSP Responder key: " + Debug.toString(responderKey));
}
} 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++) {
certs.add(new X509CertImpl(derCerts[i].toByteArray()));
}
} catch (CertificateException ce) {
throw new IOException("Bad encoding in X509 Certificate", ce);
}
} else {
certs = Collections.<X509CertImpl>emptyList();
}
}
/**
* 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 = false;
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 List<X509CertImpl> certs;
private final AlgorithmId sigAlgId;
private final byte[] signature;
private final byte[] tbsResponseData;
private final byte[] responseNonce;
/*
* Create an OCSP response from its ASN.1 DER encoding.
*/
OCSPResponse(byte[] bytes) throws IOException {
if (dump) {
HexDumpEncoder hexEnc = new HexDumpEncoder();
System.out.println("OCSPResponse bytes are...");
System.out.println(hexEnc.encode(bytes));
}
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 = Collections.<X509CertImpl>emptyList();
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) {
if (debug != null) {
X500Principal responderName = new X500Principal(seq.getData().toByteArray());
debug.println("OCSP Responder name: " + responderName);
}
} else if (tag == KEY_TAG) {
if (debug != null) {
byte[] responderKey = seq.getData().getOctetString();
debug.println("OCSP Responder key: " + Debug.toString(responderKey));
}
} 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++) {
certs.add(new X509CertImpl(derCerts[i].toByteArray()));
}
} catch (CertificateException ce) {
throw new IOException("Bad encoding in X509 Certificate", ce);
}
} else {
certs = Collections.<X509CertImpl>emptyList();
}
}
void verify(List<CertId> certIds, 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());
}
}
// Check whether the cert returned by the responder is trusted
if (!certs.isEmpty()) {
X509CertImpl cert = certs.get(0);
// First check if the cert matches the expected responder cert
if (cert.equals(responderCert)) {
// cert is trusted, now verify the signed response
// Next check if the cert was issued by the responder cert
// which was set locally.
} else if (cert.getIssuerX500Principal().equals(responderCert.getSubjectX500Principal())) {
// Check for the OCSPSigning key purpose
try {
List<String> keyPurposes = cert.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(responderCert, null));
algChecker.init(false);
algChecker.check(cert, Collections.<String>emptySet());
// check the validity
try {
if (date == null) {
cert.checkValidity();
} else {
cert.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 = cert.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 {
cert.verify(responderCert.getPublicKey());
responderCert = cert;
// cert is trusted, now verify the signed response
} catch (GeneralSecurityException e) {
responderCert = 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 (responderCert != null) {
// Check algorithm constraints specified in security property
// "jdk.certpath.disabledAlgorithms".
AlgorithmChecker.check(responderCert.getPublicKey(), sigAlgId);
if (!verifySignature(responderCert)) {
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.
* The responder's cert is implicitly trusted.
*/
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);
}
/*
* A class representing a single OCSP response.
*/
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 = 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();
}
}
}
