Examples of javax.crypto.Cipher.unwrap()

javax.crypto.Cipher.unwrap()
@com.intel.drl.spec_ref

            if (oaepParameters == null) {
                c.init(Cipher.UNWRAP_MODE, key);
            } else {
                c.init(Cipher.UNWRAP_MODE, key, oaepParameters);
            }
            ret = c.unwrap(encryptedBytes, jceKeyAlgorithm, Cipher.SECRET_KEY);
        } catch (InvalidKeyException ike) {
            throw new XMLEncryptionException("empty", ike);
        } catch (NoSuchAlgorithmException nsae) {
            throw new XMLEncryptionException("empty", nsae);
        } catch (InvalidAlgorithmParameterException e) {

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        SecretKeyFactory fact = OpenSSLReal.getSecretKeyFactoryBC(algorithm); // need to use BC for PKCS12PBEParams.
        SecretKey key = fact.generateSecret(new PBEKeySpec(password));


        cipher.init(Cipher.UNWRAP_MODE, key, pbeParams);
        // wrappedKeyAlgorithm is unknown ("")
        return (PrivateKey) cipher.unwrap(eIn.getEncryptedData(), "", Cipher.PRIVATE_KEY);
    }


    private static PrivateKey derivePrivateKeyPBES2(org.bouncycastle.asn1.pkcs.EncryptedPrivateKeyInfo eIn, AlgorithmIdentifier algId, char[] password)
            throws GeneralSecurityException, InvalidCipherTextException {
        PBES2Parameters pbeParams = new PBES2Parameters((ASN1Sequence) algId.getParameters());

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                // Key wrapping specified
                Cipher cipher = securityProvider == null ? Cipher
                        .getInstance(keyWrapAlgo) : Cipher.getInstance(
                        keyWrapAlgo, securityProvider);
                cipher.init(Cipher.UNWRAP_MODE, kek);
                return (SecretKey) cipher.unwrap(cekSecured, keyWrapAlgo,
                        Cipher.SECRET_KEY);
            }
            // fall back to the Encryption Only (EO) key decrypting method
            Cipher cipher;
            if (securityProvider != null) {

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      }


      tripleDESWrapper.init(Cipher.UNWRAP_MODE,
                            new SecretKeySpec(KEKbytes, "DESEDE"));


      Key plaintextKey = tripleDESWrapper.unwrap(realCipherTextBytes, "DESEDE",
                                                 Cipher.SECRET_KEY);
      byte realPlainTextBytes[] = plaintextKey.getEncoded();


      if (!MessageDigest.isEqual(realPlainTextBytes, keyDataBytes)) {
         return false;

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         return false;
      }


      aesWrapper.init(Cipher.UNWRAP_MODE, new SecretKeySpec(KEKbytes, "AES"));


      Key plaintextKey = aesWrapper.unwrap(realCipherTextBytes, "AES",
                                           Cipher.SECRET_KEY);
      byte realPlainTextBytes[] = plaintextKey.getEncoded();


      if (!MessageDigest.isEqual(realPlainTextBytes, keyDataBytes)) {
         return false;

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            if (oaepParameters == null) {
                c.init(Cipher.UNWRAP_MODE, key);
            } else {
                c.init(Cipher.UNWRAP_MODE, key, oaepParameters);
            }
            ret = c.unwrap(encryptedBytes, jceKeyAlgorithm, Cipher.SECRET_KEY);
        } catch (InvalidKeyException ike) {
            throw new XMLEncryptionException("empty", ike);
        } catch (NoSuchAlgorithmException nsae) {
            throw new XMLEncryptionException("empty", nsae);
        } catch (InvalidAlgorithmParameterException e) {

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                                            Key unwrapperKey,
                                            KeyProperties keyProps,
                                            int wrappedKeyType)  throws SecurityException {
        try {
            Cipher c = initCipher(unwrapperKey, keyProps, Cipher.UNWRAP_MODE);
            return c.unwrap(wrappedBytes, wrappedKeyAlgo, wrappedKeyType);
        } catch (Exception ex) {
            throw new SecurityException(ex);
        }    
    }

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                // Key wrapping specified
                Cipher cipher = securityProvider == null ? Cipher
                        .getInstance(keyWrapAlgo) : Cipher.getInstance(
                        keyWrapAlgo, securityProvider);
                cipher.init(Cipher.UNWRAP_MODE, kek);
                return (SecretKey) cipher.unwrap(cekSecured, keyWrapAlgo,
                        Cipher.SECRET_KEY);
            }
            // fall back to the Encryption Only (EO) key decrypting method
            Cipher cipher;
            if (securityProvider != null) {

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        byte[] encryptedEphemeralKey = null;
        byte[] decryptedBytes = null;
        try {
            encryptedEphemeralKey = getDecodedBase64EncodedData(xencCipherValue);
            String keyAlgorithm = JCEMapper.translateURItoJCEID(encryptedKeyTransportMethod);
            decryptedBytes = cipher.unwrap(encryptedEphemeralKey, keyAlgorithm, Cipher.SECRET_KEY).getEncoded();
        } catch (IllegalStateException ex) {
            throw new WSSecurityException(WSSecurityException.ErrorCode.FAILED_CHECK, ex);
        } catch (Exception ex) {
            decryptedBytes = getRandomKey(dataRefURIs, elem.getOwnerDocument(), wsDocInfo);
        }

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    Key ret;


    try {    
      c.init(Cipher.UNWRAP_MODE, _key);
      ret = c.unwrap(encryptedBytes, jceKeyAlgorithm, Cipher.SECRET_KEY);
      
    } catch (InvalidKeyException ike) {
      throw new XMLEncryptionException("empty", ike);
    } catch (NoSuchAlgorithmException nsae) {
      throw new XMLEncryptionException("empty", nsae);

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