use of com.github.zhenwei.core.asn1.ASN1OctetString in project XobotOS by xamarin.
the class JCEECPublicKey method populateFromPubKeyInfo.
private void populateFromPubKeyInfo(SubjectPublicKeyInfo info) {
// BEGIN android-removed
// if (info.getAlgorithmId().getObjectId().equals(CryptoProObjectIdentifiers.gostR3410_2001))
// {
// DERBitString bits = info.getPublicKeyData();
// ASN1OctetString key;
// this.algorithm = "ECGOST3410";
//
// try
// {
// key = (ASN1OctetString) ASN1Object.fromByteArray(bits.getBytes());
// }
// catch (IOException ex)
// {
// throw new IllegalArgumentException("error recovering public key");
// }
//
// byte[] keyEnc = key.getOctets();
// byte[] x = new byte[32];
// byte[] y = new byte[32];
//
// for (int i = 0; i != x.length; i++)
// {
// x[i] = keyEnc[32 - 1 - i];
// }
//
// for (int i = 0; i != y.length; i++)
// {
// y[i] = keyEnc[64 - 1 - i];
// }
//
// gostParams = new GOST3410PublicKeyAlgParameters((ASN1Sequence)info.getAlgorithmId().getParameters());
//
// ECNamedCurveParameterSpec spec = ECGOST3410NamedCurveTable.getParameterSpec(ECGOST3410NamedCurves.getName(gostParams.getPublicKeyParamSet()));
//
// ECCurve curve = spec.getCurve();
// EllipticCurve ellipticCurve = EC5Util.convertCurve(curve, spec.getSeed());
//
// this.q = curve.createPoint(new BigInteger(1, x), new BigInteger(1, y), false);
//
// ecSpec = new ECNamedCurveSpec(
// ECGOST3410NamedCurves.getName(gostParams.getPublicKeyParamSet()),
// ellipticCurve,
// new ECPoint(
// spec.getG().getX().toBigInteger(),
// spec.getG().getY().toBigInteger()),
// spec.getN(), spec.getH());
//
// }
// else
// END android-removed
{
X962Parameters params = new X962Parameters((DERObject) info.getAlgorithmId().getParameters());
ECCurve curve;
EllipticCurve ellipticCurve;
if (params.isNamedCurve()) {
DERObjectIdentifier oid = (DERObjectIdentifier) params.getParameters();
X9ECParameters ecP = ECUtil.getNamedCurveByOid(oid);
curve = ecP.getCurve();
ellipticCurve = EC5Util.convertCurve(curve, ecP.getSeed());
ecSpec = new ECNamedCurveSpec(ECUtil.getCurveName(oid), ellipticCurve, new ECPoint(ecP.getG().getX().toBigInteger(), ecP.getG().getY().toBigInteger()), ecP.getN(), ecP.getH());
} else if (params.isImplicitlyCA()) {
ecSpec = null;
curve = ProviderUtil.getEcImplicitlyCa().getCurve();
} else {
X9ECParameters ecP = new X9ECParameters((ASN1Sequence) params.getParameters());
curve = ecP.getCurve();
ellipticCurve = EC5Util.convertCurve(curve, ecP.getSeed());
this.ecSpec = new ECParameterSpec(ellipticCurve, new ECPoint(ecP.getG().getX().toBigInteger(), ecP.getG().getY().toBigInteger()), ecP.getN(), ecP.getH().intValue());
}
DERBitString bits = info.getPublicKeyData();
byte[] data = bits.getBytes();
ASN1OctetString key = new DEROctetString(data);
//
if (data[0] == 0x04 && data[1] == data.length - 2 && (data[2] == 0x02 || data[2] == 0x03)) {
int qLength = new X9IntegerConverter().getByteLength(curve);
if (qLength >= data.length - 3) {
try {
key = (ASN1OctetString) ASN1Object.fromByteArray(data);
} catch (IOException ex) {
throw new IllegalArgumentException("error recovering public key");
}
}
}
X9ECPoint derQ = new X9ECPoint(curve, key);
this.q = derQ.getPoint();
}
}
use of com.github.zhenwei.core.asn1.ASN1OctetString in project XobotOS by xamarin.
the class JCEECPublicKey method getEncoded.
public byte[] getEncoded() {
ASN1Encodable params;
SubjectPublicKeyInfo info;
// BEGIN android-removed
// if (algorithm.equals("ECGOST3410"))
// {
// if (gostParams != null)
// {
// params = gostParams;
// }
// else
// {
// if (ecSpec instanceof ECNamedCurveSpec)
// {
// params = new GOST3410PublicKeyAlgParameters(
// ECGOST3410NamedCurves.getOID(((ECNamedCurveSpec)ecSpec).getName()),
// CryptoProObjectIdentifiers.gostR3411_94_CryptoProParamSet);
// }
// else
// { // strictly speaking this may not be applicable...
// ECCurve curve = EC5Util.convertCurve(ecSpec.getCurve());
//
// X9ECParameters ecP = new X9ECParameters(
// curve,
// EC5Util.convertPoint(curve, ecSpec.getGenerator(), withCompression),
// ecSpec.getOrder(),
// BigInteger.valueOf(ecSpec.getCofactor()),
// ecSpec.getCurve().getSeed());
//
// params = new X962Parameters(ecP);
// }
// }
//
// BigInteger bX = this.q.getX().toBigInteger();
// BigInteger bY = this.q.getY().toBigInteger();
// byte[] encKey = new byte[64];
//
// extractBytes(encKey, 0, bX);
// extractBytes(encKey, 32, bY);
//
// info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(CryptoProObjectIdentifiers.gostR3410_2001, params.getDERObject()), new DEROctetString(encKey));
// }
// else
// END android-removed
{
if (ecSpec instanceof ECNamedCurveSpec) {
DERObjectIdentifier curveOid = ECUtil.getNamedCurveOid(((ECNamedCurveSpec) ecSpec).getName());
if (curveOid == null) {
curveOid = new DERObjectIdentifier(((ECNamedCurveSpec) ecSpec).getName());
}
params = new X962Parameters(curveOid);
} else if (ecSpec == null) {
params = new X962Parameters(DERNull.INSTANCE);
} else {
ECCurve curve = EC5Util.convertCurve(ecSpec.getCurve());
X9ECParameters ecP = new X9ECParameters(curve, EC5Util.convertPoint(curve, ecSpec.getGenerator(), withCompression), ecSpec.getOrder(), BigInteger.valueOf(ecSpec.getCofactor()), ecSpec.getCurve().getSeed());
params = new X962Parameters(ecP);
}
ECCurve curve = this.engineGetQ().getCurve();
ASN1OctetString p = (ASN1OctetString) new X9ECPoint(curve.createPoint(this.getQ().getX().toBigInteger(), this.getQ().getY().toBigInteger(), withCompression)).getDERObject();
info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params.getDERObject()), p.getOctets());
}
return info.getDEREncoded();
}
use of com.github.zhenwei.core.asn1.ASN1OctetString in project XobotOS by xamarin.
the class JDKPKCS12KeyStore method engineGetCertificateChain.
public Certificate[] engineGetCertificateChain(String alias) {
if (alias == null) {
throw new IllegalArgumentException("null alias passed to getCertificateChain.");
}
if (!engineIsKeyEntry(alias)) {
return null;
}
Certificate c = engineGetCertificate(alias);
if (c != null) {
Vector cs = new Vector();
while (c != null) {
X509Certificate x509c = (X509Certificate) c;
Certificate nextC = null;
byte[] bytes = x509c.getExtensionValue(X509Extensions.AuthorityKeyIdentifier.getId());
if (bytes != null) {
try {
ASN1InputStream aIn = new ASN1InputStream(bytes);
byte[] authBytes = ((ASN1OctetString) aIn.readObject()).getOctets();
aIn = new ASN1InputStream(authBytes);
AuthorityKeyIdentifier id = new AuthorityKeyIdentifier((ASN1Sequence) aIn.readObject());
if (id.getKeyIdentifier() != null) {
nextC = (Certificate) chainCerts.get(new CertId(id.getKeyIdentifier()));
}
} catch (IOException e) {
throw new RuntimeException(e.toString());
}
}
if (nextC == null) {
//
// no authority key id, try the Issuer DN
//
Principal i = x509c.getIssuerDN();
Principal s = x509c.getSubjectDN();
if (!i.equals(s)) {
Enumeration e = chainCerts.keys();
while (e.hasMoreElements()) {
X509Certificate crt = (X509Certificate) chainCerts.get(e.nextElement());
Principal sub = crt.getSubjectDN();
if (sub.equals(i)) {
try {
x509c.verify(crt.getPublicKey());
nextC = crt;
break;
} catch (Exception ex) {
// continue
}
}
}
}
}
cs.addElement(c);
if (// self signed - end of the chain
nextC != c) {
c = nextC;
} else {
c = null;
}
}
Certificate[] certChain = new Certificate[cs.size()];
for (int i = 0; i != certChain.length; i++) {
certChain[i] = (Certificate) cs.elementAt(i);
}
return certChain;
}
return null;
}
use of com.github.zhenwei.core.asn1.ASN1OctetString in project XobotOS by xamarin.
the class JDKPKCS12KeyStore method doStore.
private void doStore(OutputStream stream, char[] password, boolean useDEREncoding) throws IOException {
if (password == null) {
throw new NullPointerException("No password supplied for PKCS#12 KeyStore.");
}
//
// handle the key
//
ASN1EncodableVector keyS = new ASN1EncodableVector();
Enumeration ks = keys.keys();
while (ks.hasMoreElements()) {
byte[] kSalt = new byte[SALT_SIZE];
random.nextBytes(kSalt);
String name = (String) ks.nextElement();
PrivateKey privKey = (PrivateKey) keys.get(name);
PKCS12PBEParams kParams = new PKCS12PBEParams(kSalt, MIN_ITERATIONS);
byte[] kBytes = wrapKey(keyAlgorithm.getId(), privKey, kParams, password);
AlgorithmIdentifier kAlgId = new AlgorithmIdentifier(keyAlgorithm, kParams.getDERObject());
org.bouncycastle.asn1.pkcs.EncryptedPrivateKeyInfo kInfo = new org.bouncycastle.asn1.pkcs.EncryptedPrivateKeyInfo(kAlgId, kBytes);
boolean attrSet = false;
ASN1EncodableVector kName = new ASN1EncodableVector();
if (privKey instanceof PKCS12BagAttributeCarrier) {
PKCS12BagAttributeCarrier bagAttrs = (PKCS12BagAttributeCarrier) privKey;
//
// make sure we are using the local alias on store
//
DERBMPString nm = (DERBMPString) bagAttrs.getBagAttribute(pkcs_9_at_friendlyName);
if (nm == null || !nm.getString().equals(name)) {
bagAttrs.setBagAttribute(pkcs_9_at_friendlyName, new DERBMPString(name));
}
//
if (bagAttrs.getBagAttribute(pkcs_9_at_localKeyId) == null) {
Certificate ct = engineGetCertificate(name);
bagAttrs.setBagAttribute(pkcs_9_at_localKeyId, createSubjectKeyId(ct.getPublicKey()));
}
Enumeration e = bagAttrs.getBagAttributeKeys();
while (e.hasMoreElements()) {
DERObjectIdentifier oid = (DERObjectIdentifier) e.nextElement();
ASN1EncodableVector kSeq = new ASN1EncodableVector();
kSeq.add(oid);
kSeq.add(new DERSet(bagAttrs.getBagAttribute(oid)));
attrSet = true;
kName.add(new DERSequence(kSeq));
}
}
if (!attrSet) {
//
// set a default friendly name (from the key id) and local id
//
ASN1EncodableVector kSeq = new ASN1EncodableVector();
Certificate ct = engineGetCertificate(name);
kSeq.add(pkcs_9_at_localKeyId);
kSeq.add(new DERSet(createSubjectKeyId(ct.getPublicKey())));
kName.add(new DERSequence(kSeq));
kSeq = new ASN1EncodableVector();
kSeq.add(pkcs_9_at_friendlyName);
kSeq.add(new DERSet(new DERBMPString(name)));
kName.add(new DERSequence(kSeq));
}
SafeBag kBag = new SafeBag(pkcs8ShroudedKeyBag, kInfo.getDERObject(), new DERSet(kName));
keyS.add(kBag);
}
byte[] keySEncoded = new DERSequence(keyS).getDEREncoded();
BERConstructedOctetString keyString = new BERConstructedOctetString(keySEncoded);
//
// certificate processing
//
byte[] cSalt = new byte[SALT_SIZE];
random.nextBytes(cSalt);
ASN1EncodableVector certSeq = new ASN1EncodableVector();
PKCS12PBEParams cParams = new PKCS12PBEParams(cSalt, MIN_ITERATIONS);
AlgorithmIdentifier cAlgId = new AlgorithmIdentifier(certAlgorithm, cParams.getDERObject());
Hashtable doneCerts = new Hashtable();
Enumeration cs = keys.keys();
while (cs.hasMoreElements()) {
try {
String name = (String) cs.nextElement();
Certificate cert = engineGetCertificate(name);
boolean cAttrSet = false;
CertBag cBag = new CertBag(x509Certificate, new DEROctetString(cert.getEncoded()));
ASN1EncodableVector fName = new ASN1EncodableVector();
if (cert instanceof PKCS12BagAttributeCarrier) {
PKCS12BagAttributeCarrier bagAttrs = (PKCS12BagAttributeCarrier) cert;
//
// make sure we are using the local alias on store
//
DERBMPString nm = (DERBMPString) bagAttrs.getBagAttribute(pkcs_9_at_friendlyName);
if (nm == null || !nm.getString().equals(name)) {
bagAttrs.setBagAttribute(pkcs_9_at_friendlyName, new DERBMPString(name));
}
//
if (bagAttrs.getBagAttribute(pkcs_9_at_localKeyId) == null) {
bagAttrs.setBagAttribute(pkcs_9_at_localKeyId, createSubjectKeyId(cert.getPublicKey()));
}
Enumeration e = bagAttrs.getBagAttributeKeys();
while (e.hasMoreElements()) {
DERObjectIdentifier oid = (DERObjectIdentifier) e.nextElement();
ASN1EncodableVector fSeq = new ASN1EncodableVector();
fSeq.add(oid);
fSeq.add(new DERSet(bagAttrs.getBagAttribute(oid)));
fName.add(new DERSequence(fSeq));
cAttrSet = true;
}
}
if (!cAttrSet) {
ASN1EncodableVector fSeq = new ASN1EncodableVector();
fSeq.add(pkcs_9_at_localKeyId);
fSeq.add(new DERSet(createSubjectKeyId(cert.getPublicKey())));
fName.add(new DERSequence(fSeq));
fSeq = new ASN1EncodableVector();
fSeq.add(pkcs_9_at_friendlyName);
fSeq.add(new DERSet(new DERBMPString(name)));
fName.add(new DERSequence(fSeq));
}
SafeBag sBag = new SafeBag(certBag, cBag.getDERObject(), new DERSet(fName));
certSeq.add(sBag);
doneCerts.put(cert, cert);
} catch (CertificateEncodingException e) {
throw new IOException("Error encoding certificate: " + e.toString());
}
}
cs = certs.keys();
while (cs.hasMoreElements()) {
try {
String certId = (String) cs.nextElement();
Certificate cert = (Certificate) certs.get(certId);
boolean cAttrSet = false;
if (keys.get(certId) != null) {
continue;
}
CertBag cBag = new CertBag(x509Certificate, new DEROctetString(cert.getEncoded()));
ASN1EncodableVector fName = new ASN1EncodableVector();
if (cert instanceof PKCS12BagAttributeCarrier) {
PKCS12BagAttributeCarrier bagAttrs = (PKCS12BagAttributeCarrier) cert;
//
// make sure we are using the local alias on store
//
DERBMPString nm = (DERBMPString) bagAttrs.getBagAttribute(pkcs_9_at_friendlyName);
if (nm == null || !nm.getString().equals(certId)) {
bagAttrs.setBagAttribute(pkcs_9_at_friendlyName, new DERBMPString(certId));
}
Enumeration e = bagAttrs.getBagAttributeKeys();
while (e.hasMoreElements()) {
DERObjectIdentifier oid = (DERObjectIdentifier) e.nextElement();
// If we find one, we'll prune it out.
if (oid.equals(PKCSObjectIdentifiers.pkcs_9_at_localKeyId)) {
continue;
}
ASN1EncodableVector fSeq = new ASN1EncodableVector();
fSeq.add(oid);
fSeq.add(new DERSet(bagAttrs.getBagAttribute(oid)));
fName.add(new DERSequence(fSeq));
cAttrSet = true;
}
}
if (!cAttrSet) {
ASN1EncodableVector fSeq = new ASN1EncodableVector();
fSeq.add(pkcs_9_at_friendlyName);
fSeq.add(new DERSet(new DERBMPString(certId)));
fName.add(new DERSequence(fSeq));
}
SafeBag sBag = new SafeBag(certBag, cBag.getDERObject(), new DERSet(fName));
certSeq.add(sBag);
doneCerts.put(cert, cert);
} catch (CertificateEncodingException e) {
throw new IOException("Error encoding certificate: " + e.toString());
}
}
cs = chainCerts.keys();
while (cs.hasMoreElements()) {
try {
CertId certId = (CertId) cs.nextElement();
Certificate cert = (Certificate) chainCerts.get(certId);
if (doneCerts.get(cert) != null) {
continue;
}
CertBag cBag = new CertBag(x509Certificate, new DEROctetString(cert.getEncoded()));
ASN1EncodableVector fName = new ASN1EncodableVector();
if (cert instanceof PKCS12BagAttributeCarrier) {
PKCS12BagAttributeCarrier bagAttrs = (PKCS12BagAttributeCarrier) cert;
Enumeration e = bagAttrs.getBagAttributeKeys();
while (e.hasMoreElements()) {
DERObjectIdentifier oid = (DERObjectIdentifier) e.nextElement();
// If we find one, we'll prune it out.
if (oid.equals(PKCSObjectIdentifiers.pkcs_9_at_localKeyId)) {
continue;
}
ASN1EncodableVector fSeq = new ASN1EncodableVector();
fSeq.add(oid);
fSeq.add(new DERSet(bagAttrs.getBagAttribute(oid)));
fName.add(new DERSequence(fSeq));
}
}
SafeBag sBag = new SafeBag(certBag, cBag.getDERObject(), new DERSet(fName));
certSeq.add(sBag);
} catch (CertificateEncodingException e) {
throw new IOException("Error encoding certificate: " + e.toString());
}
}
byte[] certSeqEncoded = new DERSequence(certSeq).getDEREncoded();
byte[] certBytes = cryptData(true, cAlgId, password, false, certSeqEncoded);
EncryptedData cInfo = new EncryptedData(data, cAlgId, new BERConstructedOctetString(certBytes));
ContentInfo[] info = new ContentInfo[] { new ContentInfo(data, keyString), new ContentInfo(encryptedData, cInfo.getDERObject()) };
AuthenticatedSafe auth = new AuthenticatedSafe(info);
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
DEROutputStream asn1Out;
if (useDEREncoding) {
asn1Out = new DEROutputStream(bOut);
} else {
asn1Out = new BEROutputStream(bOut);
}
asn1Out.writeObject(auth);
byte[] pkg = bOut.toByteArray();
ContentInfo mainInfo = new ContentInfo(data, new BERConstructedOctetString(pkg));
//
// create the mac
//
byte[] mSalt = new byte[20];
int itCount = MIN_ITERATIONS;
random.nextBytes(mSalt);
byte[] data = ((ASN1OctetString) mainInfo.getContent()).getOctets();
MacData mData;
try {
byte[] res = calculatePbeMac(id_SHA1, mSalt, itCount, password, false, data);
// BEGIN android-changed
AlgorithmIdentifier algId = new AlgorithmIdentifier(id_SHA1, DERNull.INSTANCE);
// END android-changed
DigestInfo dInfo = new DigestInfo(algId, res);
mData = new MacData(dInfo, mSalt, itCount);
} catch (Exception e) {
throw new IOException("error constructing MAC: " + e.toString());
}
//
// output the Pfx
//
Pfx pfx = new Pfx(mainInfo, mData);
if (useDEREncoding) {
asn1Out = new DEROutputStream(stream);
} else {
asn1Out = new BEROutputStream(stream);
}
asn1Out.writeObject(pfx);
}
use of com.github.zhenwei.core.asn1.ASN1OctetString in project nhin-d by DirectProject.
the class ViewTrustBundlePKCS7 method viewBundle.
@SuppressWarnings({ "rawtypes" })
public boolean viewBundle(File trustDir) {
try {
//System.out.println("File:"+trustDir.getName());
if (!trustDir.getName().endsWith(".p7m")) {
byte[] trustBundleByte = loadFileData(trustDir);
CertificateFactory cf = CertificateFactory.getInstance("X.509");
CMSSignedData dataParser = new CMSSignedData(trustBundleByte);
ContentInfo contentInfo = dataParser.getContentInfo();
SignedData signedData = SignedData.getInstance(contentInfo.getContent());
Enumeration certificates = signedData.getCertificates().getObjects();
StringBuffer output = new StringBuffer();
int counter = 1;
String chk = "Absent";
while (certificates.hasMoreElements()) {
DERObject certObj = (DERObject) certificates.nextElement();
InputStream in = new ByteArrayInputStream(certObj.getDEREncoded());
X509Certificate cert = (X509Certificate) cf.generateCertificate(in);
X500Name x500name = new JcaX509CertificateHolder(cert).getSubject();
RDN cn = x500name.getRDNs(BCStyle.CN)[0];
output.append("Trust Anchor :" + counter + "\n");
output.append("Common Name :" + IETFUtils.valueToString(cn.getFirst().getValue()) + "\n");
output.append("DN :" + cert.getSubjectDN().getName() + "\n\n");
counter++;
}
if (signedData.getEncapContentInfo().getContent() != null) {
//chk = new String(signedData.getEncapContentInfo().getContent().getDERObject().getEncoded(),"UTF-8");
chk = new String(signedData.getEncapContentInfo().getContent().getDERObject().getDEREncoded(), "UTF-8");
}
output.append("Meta Data :\n" + chk);
error = output.toString();
} else //end of if check of file type
{
StringBuffer output = new StringBuffer();
int counter = 1;
String chk = "Absent";
byte[] trustBundleByte = loadFileData(trustDir);
CMSSignedData dataParser = new CMSSignedData(trustBundleByte);
ContentInfo contentInfo = dataParser.getContentInfo();
SignedData signedData = SignedData.getInstance(contentInfo.getContent());
CMSSignedData encapInfoBundle = new CMSSignedData(new CMSProcessableByteArray(signedData.getEncapContentInfo().getContent().getDERObject().getEncoded()), contentInfo);
SignedData encapMetaData = SignedData.getInstance(encapInfoBundle.getContentInfo().getContent());
//System.out.println("ENCAP META DATA"+new String(encapMetaData.getEncapContentInfo().getContent().getDERObject().getEncoded(),"UTF-8"));
CMSProcessableByteArray cin = new CMSProcessableByteArray(((ASN1OctetString) encapMetaData.getEncapContentInfo().getContent()).getOctets());
CertificateFactory ucf = CertificateFactory.getInstance("X.509");
CMSSignedData unsignedParser = new CMSSignedData(cin.getInputStream());
ContentInfo unsginedEncapInfo = unsignedParser.getContentInfo();
SignedData metaData = SignedData.getInstance(unsginedEncapInfo.getContent());
Enumeration certificates = metaData.getCertificates().getObjects();
while (certificates.hasMoreElements()) {
DERObject certObj = (DERObject) certificates.nextElement();
InputStream bin = new ByteArrayInputStream(certObj.getDEREncoded());
X509Certificate cert = (X509Certificate) ucf.generateCertificate(bin);
X500Name x500name = new JcaX509CertificateHolder(cert).getSubject();
RDN cn = x500name.getRDNs(BCStyle.CN)[0];
output.append("Trust Anchor :" + counter + "\n");
output.append("Common Name :" + IETFUtils.valueToString(cn.getFirst().getValue()) + "\n");
output.append("DN :" + cert.getSubjectDN().getName() + "\n\n");
counter++;
}
if (metaData.getEncapContentInfo().getContent() != null) {
//chk = new String(signedData.getEncapContentInfo().getContent().getDERObject().getEncoded(),"UTF-8");
chk = new String(metaData.getEncapContentInfo().getContent().getDERObject().getDEREncoded(), "UTF-8");
}
output.append("Meta Data :\n" + chk);
error = output.toString();
}
//end of .p7m check if
}//end of try
catch (IOException io) {
//io.printStackTrace(System.err);
return false;
} catch (CMSException cm) {
//cm.printStackTrace(System.err);
return false;
} catch (Exception e) {
//e.printStackTrace(System.err);
return false;
}
return true;
}
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