Package javax.crypto

Examples of javax.crypto.Cipher.unwrap()

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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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    try {
      Cipher cipher = Cipher.getInstance("RSA");

      cipher.init(Cipher.UNWRAP_MODE, _authKeyPair.getPrivate());

      Key key = cipher.unwrap(encKey, keyAlgorithm, Cipher.SECRET_KEY);

      return key;
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
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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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        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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            wrapper.init(Cipher.UNWRAP_MODE, new SecretKeySpec(kek, alg));

            try
            {
                Key  pText = wrapper.unwrap(out, alg, Cipher.SECRET_KEY);
                if (!equalArray(pText.getEncoded(), in))
                {
                    fail("failed unwrap test " + id  + " expected " + new String(Hex.encode(in)) + " got " + new String(Hex.encode(pText.getEncoded())));
                }
            }
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                Cipher cipher = Cipher.getInstance(algorithm.getId(), bcProvider);

                cipher.init(Cipher.UNWRAP_MODE, k, defParams);

                // we pass "" as the key algorithm type as it is unknown at this point
                return (PrivateKey)cipher.unwrap(data, "", Cipher.PRIVATE_KEY);
            }
            else if (algorithm.equals(PKCSObjectIdentifiers.id_PBES2))
            {
                PBES2Parameters alg = PBES2Parameters.getInstance(algId.getParameters());
                PBKDF2Params func = PBKDF2Params.getInstance(alg.getKeyDerivationFunc().getParameters());
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                Cipher cipher = Cipher.getInstance(alg.getEncryptionScheme().getAlgorithm().getId(), bcProvider);

                cipher.init(Cipher.UNWRAP_MODE, k, new IvParameterSpec(ASN1OctetString.getInstance(alg.getEncryptionScheme().getParameters()).getOctets()));

                // we pass "" as the key algorithm type as it is unknown at this point
                return (PrivateKey)cipher.unwrap(data, "", Cipher.PRIVATE_KEY);
            }
        }
        catch (Exception e)
        {
            throw new IOException("exception unwrapping private key - " + e.toString());
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            Key wrapKey = keyGen.generateKey();
            cipher.init(Cipher.WRAP_MODE, wrapKey);
            byte[] wrappedKey = cipher.wrap(priKey);

            cipher.init(Cipher.UNWRAP_MODE, wrapKey);
            Key key = cipher.unwrap(wrappedKey, "RSA", Cipher.PRIVATE_KEY);

            if (!MessageDigest.isEqual(priKey.getEncoded(), key.getEncoded()))
            {
                return new SimpleTestResult(false, "Unwrapped key does not match");
            }
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        Cipher simpleCipher = Cipher.getInstance(simpleName, "BC");

        simpleCipher.init(Cipher.UNWRAP_MODE, pbeKey, pbeParamSpec);

        SecretKey unwrappedKey = (SecretKey)simpleCipher.unwrap(symKeyBytes, "AES", Cipher.SECRET_KEY);

        if (!Arrays.areEqual(unwrappedKey.getEncoded(), key.getEncoded()))
        {
            fail("key mismatch on unwrapping");
        }
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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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