public static void main(String[] args) {
try {
AlgorithmParameterGenerator paramGen = AlgorithmParameterGenerator.getInstance("DSA");
paramGen.init(1024);
AlgorithmParameters params = paramGen.generateParameters();
DSAParameterSpec dsaParameterSpec = params.getParameterSpec(DSAParameterSpec.class);
KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("DSA");
keyPairGenerator.initialize(dsaParameterSpec);
KeyPair keyPair = keyPairGenerator.generateKeyPair();
PublicKey publicKey = keyPair.getPublic();
PrivateKey privateKey = keyPair.getPrivate();
saveKey("BpubKey", publicKey);
saveKey("BprivKey", privateKey);
} catch (NoSuchAlgorithmException
| InvalidParameterSpecException
| InvalidAlgorithmParameterException e) {
e.printStackTrace();
}
}
public static void main(String[] args) throws Exception {
byte[] iv_1 = {
(byte) 0x11, (byte) 0x11, (byte) 0x11, (byte) 0x11,
(byte) 0x11, (byte) 0x11, (byte) 0x11, (byte) 0x11,
(byte) 0x33, (byte) 0x33
};
// check that RC2 is supported by our provider
AlgorithmParameters rc2Params = AlgorithmParameters.getInstance("RC2", "SunJCE");
// check that getAlgorithm returns "RC2"
if (!rc2Params.getAlgorithm().equals("RC2")) {
throw new Exception(
"getAlgorithm() returned " + rc2Params.getAlgorithm() + " instead of RC2");
}
// test parameters with effective key size and iv
byte[] encoded = testParams(rc2Params, new RC2ParameterSpec(2, iv_1));
// test parameters with just iv
encoded = testParams(AlgorithmParameters.getInstance("RC2"), new RC2ParameterSpec(0, iv_1));
// test vectors in RFC 2268
runTests(tests);
}
public static Message encrypt(PublicKey pubKey, byte[] input) throws CryptoException {
Message message = new Message();
message.pubKey = pubKey.getEncoded();
KeyGenerator keyGen;
try {
keyGen = KeyGenerator.getInstance("AES");
} catch (NoSuchAlgorithmException e) {
throw new CryptoException(e);
}
keyGen.init(128);
SecretKey secretKey = keyGen.generateKey();
try {
Cipher rsaCipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
rsaCipher.init(Cipher.ENCRYPT_MODE, pubKey);
message.sessionKey = rsaCipher.doFinal(secretKey.getEncoded());
Cipher aesCipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
aesCipher.init(Cipher.ENCRYPT_MODE, secretKey);
AlgorithmParameters params = aesCipher.getParameters();
message.iv = params.getParameterSpec(IvParameterSpec.class).getIV();
message.ciphertext = aesCipher.doFinal(input);
} catch (NoSuchAlgorithmException
| NoSuchPaddingException
| InvalidKeyException
| IllegalBlockSizeException
| BadPaddingException
| InvalidParameterSpecException e) {
throw new CryptoException(e);
}
return message;
}
private DERObject createDERForRecipient(byte[] in, X509Certificate cert)
throws IOException, GeneralSecurityException {
String s = "1.2.840.113549.3.2";
AlgorithmParameterGenerator algorithmparametergenerator =
AlgorithmParameterGenerator.getInstance(s);
AlgorithmParameters algorithmparameters = algorithmparametergenerator.generateParameters();
ByteArrayInputStream bytearrayinputstream =
new ByteArrayInputStream(algorithmparameters.getEncoded("ASN.1"));
ASN1InputStream asn1inputstream = new ASN1InputStream(bytearrayinputstream);
DERObject derobject = asn1inputstream.readObject();
KeyGenerator keygenerator = KeyGenerator.getInstance(s);
keygenerator.init(128);
SecretKey secretkey = keygenerator.generateKey();
Cipher cipher = Cipher.getInstance(s);
cipher.init(1, secretkey, algorithmparameters);
byte[] abyte1 = cipher.doFinal(in);
DEROctetString deroctetstring = new DEROctetString(abyte1);
KeyTransRecipientInfo keytransrecipientinfo =
computeRecipientInfo(cert, secretkey.getEncoded());
DERSet derset = new DERSet(new RecipientInfo(keytransrecipientinfo));
AlgorithmIdentifier algorithmidentifier =
new AlgorithmIdentifier(new DERObjectIdentifier(s), derobject);
EncryptedContentInfo encryptedcontentinfo =
new EncryptedContentInfo(PKCSObjectIdentifiers.data, algorithmidentifier, deroctetstring);
EnvelopedData env = new EnvelopedData(null, derset, encryptedcontentinfo, null);
ContentInfo contentinfo = new ContentInfo(PKCSObjectIdentifiers.envelopedData, env);
return contentinfo.getDERObject();
}
AlgorithmParameters implGetParameters() {
AlgorithmParameters params = null;
if (salt == null) {
// Cipher is not initialized with parameters;
// follow the recommendation in PKCS12 v1.0
// section B.4 to generate salt and iCount.
salt = new byte[DEFAULT_SALT_LENGTH];
SunJCE.getRandom().nextBytes(salt);
iCount = DEFAULT_COUNT;
}
PBEParameterSpec pbeSpec = new PBEParameterSpec(salt, iCount);
try {
params = AlgorithmParameters.getInstance(pbeAlgo, "SunJCE");
} catch (GeneralSecurityException gse) {
// should never happen
throw new RuntimeException("SunJCE provider is not configured properly");
}
try {
params.init(pbeSpec);
} catch (InvalidParameterSpecException ipse) {
// should never happen
throw new RuntimeException("PBEParameterSpec not supported");
}
return params;
}
/**
* Generate a spec from a curve name
*
* @return null if fail
*/
private static ECParameterSpec genSpec(String name) {
// convert the ECGenParameterSpecs to ECParameterSpecs for several reasons:
// 1) to check availability
// 2) efficiency
// 3) SigUtil must cast the AlgorithmParameterSpec to a ECParameterSpec
// to convert a I2P key to a Java key. Sadly, a ECGenParameterSpec
// is not a ECParameterSpec.
try {
AlgorithmParameters ap;
try {
ap = AlgorithmParameters.getInstance("EC");
} catch (Exception e) {
if (BC_AVAILABLE) {
log("Named curve " + name + " is not available, trying BC", e);
ap = AlgorithmParameters.getInstance("EC", "BC");
log("Fallback to BC worked for named curve " + name);
} else {
throw e;
}
}
ECGenParameterSpec ecgps = new ECGenParameterSpec(name);
ap.init(ecgps);
ECParameterSpec rv = ap.getParameterSpec(ECParameterSpec.class);
log("Named curve " + name + " loaded");
return rv;
} catch (Exception e) {
log("Named curve " + name + " is not available", e);
return null;
}
}
/** {@inheritDoc} */
@Override
public byte[] encrypt(final byte[] bytes) throws EncyptionException {
try {
final javax.crypto.Cipher cipher = javax.crypto.Cipher.getInstance("AES/CBC/PKCS5Padding");
cipher.init(javax.crypto.Cipher.ENCRYPT_MODE, this.secretKey);
final AlgorithmParameters params = cipher.getParameters();
final byte[] ivBytes = params.getParameterSpec(IvParameterSpec.class).getIV();
final byte[] dataBytes = cipher.doFinal(bytes);
final byte[] secret = ArrayOfBytesType.TYPE.toBytes(ivBytes, dataBytes);
return secret;
} catch (final NoSuchAlgorithmException problem) {
throw new EncyptionException(problem);
} catch (final NoSuchPaddingException problem) {
throw new EncyptionException(problem);
} catch (final InvalidKeyException problem) {
throw new EncyptionException(problem);
} catch (final InvalidParameterSpecException problem) {
throw new EncyptionException(problem);
} catch (final IllegalBlockSizeException problem) {
throw new EncyptionException(problem);
} catch (final BadPaddingException problem) {
throw new EncyptionException(problem);
}
}
/**
* @tests javax.crypto.Cipher#getParameters()
* @tests javax.crypto.Cipher#init(int, java.security.Key, java.security.AlgorithmParameters,
* java.security.SecureRandom)
*/
public void test_getParameters() throws Exception {
/*
* If this test is changed, implement the following:
* test_initILjava_security_KeyLjava_security_AlgorithmParametersLjava_security_SecureRandom()
*/
SecureRandom sr = new SecureRandom();
Cipher cipher = null;
byte[] apEncoding = null;
byte[] iv = new byte[8];
sr.nextBytes(iv);
AlgorithmParameters ap = AlgorithmParameters.getInstance("DESede");
ap.init(iv, "RAW");
apEncoding = ap.getEncoded("ASN.1");
cipher = Cipher.getInstance(algorithm + "/CBC/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, cipherKey, ap, sr);
byte[] cipherParmsEnc = cipher.getParameters().getEncoded("ASN.1");
assertTrue("Parameters differ", Arrays.equals(apEncoding, cipherParmsEnc));
}
protected void engineInit(
int paramInt,
Key paramKey,
AlgorithmParameters paramAlgorithmParameters,
SecureRandom paramSecureRandom) {
Object localObject2 = null;
Object localObject3 = null;
if (paramAlgorithmParameters != null) {
int i = 0;
for (; ; ) {
Object localObject1 = localObject3;
if (i == this.aXo.length) {
break;
}
try {
localObject1 = paramAlgorithmParameters.getParameterSpec(this.aXo[i]);
} catch (Exception localException) {
i += 1;
}
}
localObject2 = localException;
if (localException == null) {
throw new InvalidAlgorithmParameterException(
"can't handle parameter " + paramAlgorithmParameters.toString());
}
}
this.aXe = paramAlgorithmParameters;
engineInit(paramInt, paramKey, localObject2, paramSecureRandom);
}
private void setSignatureParameters(Signature var1, DEREncodable var2)
throws NoSuchAlgorithmException, SignatureException, InvalidKeyException {
if (var2 != null) {
if (!DERNull.INSTANCE.equals(var2)) {
String var3 = var1.getAlgorithm();
Provider var4 = var1.getProvider();
AlgorithmParameters var5 = AlgorithmParameters.getInstance(var3, var4);
try {
byte[] var6 = var2.getDERObject().getDEREncoded();
var5.init(var6);
} catch (IOException var17) {
StringBuilder var9 = (new StringBuilder()).append("IOException decoding parameters: ");
String var10 = var17.getMessage();
String var11 = var9.append(var10).toString();
throw new SignatureException(var11);
}
if (var1.getAlgorithm().endsWith("MGF1")) {
try {
AlgorithmParameterSpec var7 = var5.getParameterSpec(PSSParameterSpec.class);
var1.setParameter(var7);
} catch (GeneralSecurityException var16) {
StringBuilder var13 = (new StringBuilder()).append("Exception extracting parameters: ");
String var14 = var16.getMessage();
String var15 = var13.append(var14).toString();
throw new SignatureException(var15);
}
}
}
}
}
/**
* Method getAlgParam.
*
* @return AlgorithmParameters
* @param jceName The name of the algorithm parameters which may depend on the provider
*/
public AlgorithmParameters getAlgParam(String jceName)
throws NoSuchAlgorithmException, IOException {
if (this.param == null) {
return null;
}
AlgorithmParameters ap = AlgorithmParameters.getInstance(jceName);
ap.init(this.param.getValue());
return ap;
}
/**
* Generates and returns {@link DHParameterSpec}.
*
* @return {@link String}
* @see AlgorithmParameters
* @see AlgorithmParameterGenerator
*/
public static DHParameterSpec generateDiffieHellmanValues()
throws NoSuchAlgorithmException, InvalidParameterSpecException {
AlgorithmParameterGenerator parameterGenerator = AlgorithmParameterGenerator.getInstance("DH");
parameterGenerator.init(1024);
AlgorithmParameters parameters = parameterGenerator.generateParameters();
return (DHParameterSpec) parameters.getParameterSpec(DHParameterSpec.class);
}
/** Can be used to generate new parameters */
public static void main(String[] args) throws Exception {
AlgorithmParameterGenerator paramGen = AlgorithmParameterGenerator.getInstance(ALGORITHM);
paramGen.init(1024);
AlgorithmParameters params = paramGen.generateParameters();
DHParameterSpec dhSpec = params.getParameterSpec(DHParameterSpec.class);
System.out.println("l=" + dhSpec.getL());
System.out.println("g=" + dhSpec.getG());
System.out.println("p=" + dhSpec.getP());
}
/** Parse the key. Called by X509Key. */
protected void parseKeyBits() throws InvalidKeyException {
try {
AlgorithmParameters algParams = this.algid.getParameters();
params = algParams.getParameterSpec(ECParameterSpec.class);
w = ECParameters.decodePoint(key, params.getCurve());
} catch (IOException e) {
throw new InvalidKeyException("Invalid EC key", e);
} catch (InvalidParameterSpecException e) {
throw new InvalidKeyException("Invalid EC key", e);
}
}
public AlgorithmParameters getAlgParameters() {
if (params == null && encodedParams != null) {
try {
params = AlgorithmParameters.getInstance(getAlgName());
params.init(encodedParams);
} catch (NoSuchAlgorithmException ignore) {
// FIXME throw exception?
} catch (IOException ignore) {
}
}
return params;
}
private void testGCMGeneric(byte[] K, byte[] N, byte[] A, byte[] P, byte[] C)
throws InvalidKeyException, NoSuchAlgorithmException, NoSuchPaddingException,
IllegalBlockSizeException, BadPaddingException, InvalidAlgorithmParameterException,
NoSuchProviderException, IOException, InvalidParameterSpecException {
Cipher eax = Cipher.getInstance("AES/GCM/NoPadding", "BC");
SecretKeySpec key = new SecretKeySpec(K, "AES");
// GCMParameterSpec mapped to AEADParameters and overrides default MAC
// size
GCMParameterSpec spec = new GCMParameterSpec(128, N);
eax.init(Cipher.ENCRYPT_MODE, key, spec);
eax.updateAAD(A);
byte[] c = eax.doFinal(P);
if (!areEqual(C, c)) {
fail("JCE encrypt with additional data and GCMParameterSpec failed.");
}
eax = Cipher.getInstance("GCM", "BC");
eax.init(Cipher.DECRYPT_MODE, key, spec);
eax.updateAAD(A);
byte[] p = eax.doFinal(C);
if (!areEqual(P, p)) {
fail("JCE decrypt with additional data and GCMParameterSpec failed.");
}
AlgorithmParameters algParams = eax.getParameters();
byte[] encParams = algParams.getEncoded();
GCMParameters gcmParameters = GCMParameters.getInstance(encParams);
if (!Arrays.areEqual(spec.getIV(), gcmParameters.getNonce())
|| spec.getTLen() != gcmParameters.getIcvLen()) {
fail("parameters mismatch");
}
GCMParameterSpec gcmSpec = algParams.getParameterSpec(GCMParameterSpec.class);
if (!Arrays.areEqual(gcmSpec.getIV(), gcmParameters.getNonce())
|| gcmSpec.getTLen() != gcmParameters.getIcvLen() * 8) {
fail("spec parameters mismatch");
}
if (!Arrays.areEqual(eax.getIV(), gcmParameters.getNonce())) {
fail("iv mismatch");
}
}
private AlgorithmParameters checkParameters(Cipher c, byte[] salt, int iCount)
throws InvalidParameterSpecException {
AlgorithmParameters param = c.getParameters();
PBEParameterSpec spec = (PBEParameterSpec) param.getParameterSpec(PBEParameterSpec.class);
if (!Arrays.areEqual(salt, spec.getSalt())) {
fail("" + algorithm + "failed salt test");
}
if (iCount != spec.getIterationCount()) {
fail("" + algorithm + "failed count test");
}
return param;
}
protected AlgorithmParameters engineGetParameters() {
if (engineParams == null) {
if (paramSpec != null) {
try {
engineParams = AlgorithmParameters.getInstance("OAEP", "DFBC");
engineParams.init(paramSpec);
} catch (Exception e) {
throw new RuntimeException(e.toString());
}
}
}
return engineParams;
}
public void testAES256CCM() throws Exception {
byte[] data = "Eric H. Echidna".getBytes();
ASN1ObjectIdentifier macAlg = CMSAlgorithm.AES256_CCM;
AlgorithmParameters algParams = AlgorithmParameters.getInstance("CCM", BC);
algParams.init(new CCMParameters(Hex.decode("000102030405060708090a0b"), 16).getEncoded());
CMSAuthenticatedDataGenerator adGen = new CMSAuthenticatedDataGenerator();
X509CertificateHolder origCert = new X509CertificateHolder(_origCert.getEncoded());
adGen.setOriginatorInfo(new OriginatorInfoGenerator(origCert).generate());
adGen.addRecipientInfoGenerator(
new JceKeyTransRecipientInfoGenerator(_reciCert).setProvider(BC));
CMSAuthenticatedData ad =
adGen.generate(
new CMSProcessableByteArray(data),
new JceCMSMacCalculatorBuilder(macAlg)
.setAlgorithmParameters(algParams)
.setProvider(BC)
.build());
assertTrue(ad.getOriginatorInfo().getCertificates().getMatches(null).contains(origCert));
RecipientInformationStore recipients = ad.getRecipientInfos();
assertEquals(ad.getMacAlgOID(), macAlg.getId());
Collection c = recipients.getRecipients();
assertEquals(1, c.size());
Iterator it = c.iterator();
while (it.hasNext()) {
RecipientInformation recipient = (RecipientInformation) it.next();
assertEquals(recipient.getKeyEncryptionAlgOID(), PKCSObjectIdentifiers.rsaEncryption.getId());
byte[] recData =
recipient.getContent(
new JceKeyTransAuthenticatedRecipient(_reciKP.getPrivate()).setProvider(BC));
assertTrue(Arrays.equals(data, recData));
assertEquals(16, ad.getMac().length);
assertTrue(Arrays.equals(ad.getMac(), recipient.getMac()));
}
}
/*
* Generate PBE Algorithm Parameters
*/
private AlgorithmParameters getAlgorithmParameters(String algorithm) throws IOException {
AlgorithmParameters algParams = null;
// create PBE parameters from salt and iteration count
PBEParameterSpec paramSpec = new PBEParameterSpec(getSalt(), iterationCount);
try {
algParams = AlgorithmParameters.getInstance(algorithm);
algParams.init(paramSpec);
} catch (Exception e) {
IOException ioe = new IOException("getAlgorithmParameters failed: " + e.getMessage());
ioe.initCause(e);
throw ioe;
}
return algParams;
}
protected AlgorithmParameters engineGetParameters() {
if (engineParam == null) {
if (engineParams != null) {
String name = "IES";
try {
engineParam = AlgorithmParameters.getInstance(name, BouncyCastleProvider.PROVIDER_NAME);
engineParam.init(engineParams);
} catch (Exception e) {
throw new RuntimeException(e.toString());
}
}
}
return engineParam;
}
// see JCE spec
protected AlgorithmParameters engineGetParameters() {
if (iv == null) {
return null;
}
IvParameterSpec ivSpec = new IvParameterSpec(iv);
try {
AlgorithmParameters params =
AlgorithmParameters.getInstance(keyAlgorithm, P11Util.getSunJceProvider());
params.init(ivSpec);
return params;
} catch (GeneralSecurityException e) {
// NoSuchAlgorithmException, NoSuchProviderException
// InvalidParameterSpecException
throw new ProviderException("Could not encode parameters", e);
}
}
private AlgorithmParameters getParameters() throws NoSuchAlgorithmException {
AlgorithmParameters ap = AlgorithmParameters.getInstance(this.getAlgName());
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
DEROutputStream dOut = new DEROutputStream(bOut);
try {
dOut.writeObject(infoObj.getEncryptionAlgorithm().getParameters());
dOut.close();
ap.init(bOut.toByteArray());
} catch (IOException e) {
throw new NoSuchAlgorithmException("unable to parse parameters");
}
return ap;
}
private void tryKekAlgorithm(SecretKey kek, ASN1ObjectIdentifier algOid, byte[] encodedParameters)
throws NoSuchAlgorithmException, NoSuchProviderException, CMSException,
OperatorCreationException, IOException {
byte[] data = "Eric H. Echidna".getBytes();
CMSAuthenticatedDataGenerator adGen = new CMSAuthenticatedDataGenerator();
byte[] kekId = new byte[] {1, 2, 3, 4, 5};
adGen.addRecipientInfoGenerator(new JceKEKRecipientInfoGenerator(kekId, kek).setProvider(BC));
AlgorithmParameters algParams =
AlgorithmParameters.getInstance(CMSAlgorithm.DES_EDE3_CBC.getId(), "BC");
algParams.init(encodedParameters);
CMSAuthenticatedData ad =
adGen.generate(
new CMSProcessableByteArray(data),
new JceCMSMacCalculatorBuilder(CMSAlgorithm.DES_EDE3_CBC)
.setAlgorithmParameters(algParams)
.setProvider(BC)
.build());
RecipientInformationStore recipients = ad.getRecipientInfos();
Collection c = recipients.getRecipients();
Iterator it = c.iterator();
assertEquals(ad.getMacAlgOID(), CMSAuthenticatedDataGenerator.DES_EDE3_CBC);
assertEquals(
ad.getMacAlgorithm().getParameters(), ASN1Primitive.fromByteArray(encodedParameters));
if (it.hasNext()) {
RecipientInformation recipient = (RecipientInformation) it.next();
assertEquals(recipient.getKeyEncryptionAlgOID(), algOid.getId());
byte[] recData = recipient.getContent(new JceKEKAuthenticatedRecipient(kek).setProvider(BC));
assertTrue(Arrays.equals(data, recData));
assertTrue(Arrays.equals(ad.getMac(), recipient.getMac()));
} else {
fail("no recipient found");
}
}
protected AlgorithmParameters engineGetParameters() {
if (engineParams == null) {
if (pbeSpec != null) {
try {
AlgorithmParameters engineParams =
AlgorithmParameters.getInstance(pbeAlgorithm, BouncyCastleProvider.PROVIDER_NAME);
engineParams.init(pbeSpec);
return engineParams;
} catch (Exception e) {
return null;
}
}
}
return engineParams;
}
/**
* Create a new <code>EncryptedPrivateKeyInfo</code> object from raw encrypted data and the
* parameters used for encryption.
*
* <p>The <code>encryptedData</code> array is cloned.
*
* @param params The encryption algorithm parameters.
* @param encryptedData The encrypted key data.
* @throws java.lang.IllegalArgumentException If the <code>encryptedData</code> array is empty
* (zero-length).
* @throws java.security.NoSuchAlgorithmException If the algorithm specified in the parameters is
* not supported.
* @throws java.lang.NullPointerException If <code>encryptedData</code> is null.
*/
public EncryptedPrivateKeyInfo(AlgorithmParameters params, byte[] encryptedData)
throws IllegalArgumentException, NoSuchAlgorithmException {
if (encryptedData.length == 0) {
throw new IllegalArgumentException("0-length encryptedData");
}
this.params = params;
algName = params.getAlgorithm();
algOid = getOid(algName);
this.encryptedData = (byte[]) encryptedData.clone();
}
@Override
protected void engineInit(int opmode, Key key, AlgorithmParameters params, SecureRandom random)
throws InvalidKeyException, InvalidAlgorithmParameterException {
if (params != null) {
throw new InvalidAlgorithmParameterException(
"unknown param type: " + params.getClass().getName());
}
engineInitInternal(opmode, key);
}
protected AlgorithmParameters engineGetParameters() {
if (engineParams == null) {
if (ivParam != null) {
String name = cipher.getUnderlyingCipher().getAlgorithmName();
if (name.indexOf('/') >= 0) {
name = name.substring(0, name.indexOf('/'));
}
try {
engineParams = AlgorithmParameters.getInstance(name, BouncyCastleProvider.PROVIDER_NAME);
engineParams.init(ivParam.getIV());
} catch (Exception e) {
throw new RuntimeException(e.toString());
}
}
}
return engineParams;
}
protected AlgorithmParameters engineGenerateParameters() {
byte[] iv = new byte[8];
if (random == null) {
random = new SecureRandom();
}
random.nextBytes(iv);
AlgorithmParameters params;
try {
params = createParametersInstance("DES");
params.init(new IvParameterSpec(iv));
} catch (Exception e) {
throw new RuntimeException(e.getMessage());
}
return params;
}
protected AlgorithmParameters engineGenerateParameters() {
byte[] iv = new byte[8];
if (random == null) {
random = new SecureRandom();
}
random.nextBytes(iv);
AlgorithmParameters params;
try {
params = AlgorithmParameters.getInstance("CAST5", BouncyCastleProvider.PROVIDER_NAME);
params.init(new IvParameterSpec(iv));
} catch (Exception e) {
throw new RuntimeException(e.getMessage());
}
return params;
}