Package javax.crypto

Examples of javax.crypto.EncryptedPrivateKeyInfo

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                AlgorithmParameters ap = AlgorithmParameters
                        .getInstance(EncryptedPrivateKeyInfoData.algName0[i][0]);
                // use pregenerated AlgorithmParameters encodings
                ap.init(EncryptedPrivateKeyInfoData.getParametersEncoding(
                        EncryptedPrivateKeyInfoData.algName0[i][0]));
                EncryptedPrivateKeyInfo epki = new EncryptedPrivateKeyInfo(ap,
                        EncryptedPrivateKeyInfoData.encryptedData);
                assertEquals(EncryptedPrivateKeyInfoData.algName0[i][1], epki
                        .getAlgName());
                performed = true;
            } catch (NoSuchAlgorithmException allowedFailure) {
            }
        }
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     * @param encryptedPrivateKey The raw data of the private key
     * @param keyFile The file containing the private key
     */
    private static KeySpec decryptPrivateKey(byte[] encryptedPrivateKey)
            throws GeneralSecurityException {
        EncryptedPrivateKeyInfo epkInfo;
        try {
            epkInfo = new EncryptedPrivateKeyInfo(encryptedPrivateKey);
        } catch (IOException ex) {
            // Probably not an encrypted key.
            return null;
        }

        char[] password = readPassword().toCharArray();

        SecretKeyFactory skFactory = SecretKeyFactory.getInstance(epkInfo.getAlgName());
        Key key = skFactory.generateSecret(new PBEKeySpec(password));

        Cipher cipher = Cipher.getInstance(epkInfo.getAlgName());
        cipher.init(Cipher.DECRYPT_MODE, key, epkInfo.getAlgParameters());

        try {
            return epkInfo.getKeySpec(cipher);
        } catch (InvalidKeySpecException ex) {
            System.err.println("signapk: Password for keyFile may be bad.");
            throw ex;
        }
    }
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        if (password == null || password.length == 0) {
            return new PKCS8EncodedKeySpec(key);
        }

        EncryptedPrivateKeyInfo encryptedPrivateKeyInfo = new EncryptedPrivateKeyInfo(key);
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(encryptedPrivateKeyInfo.getAlgName());
        PBEKeySpec pbeKeySpec = new PBEKeySpec(password);
        SecretKey pbeKey = keyFactory.generateSecret(pbeKeySpec);

        Cipher cipher = Cipher.getInstance(encryptedPrivateKeyInfo.getAlgName());
        cipher.init(Cipher.DECRYPT_MODE, pbeKey, encryptedPrivateKeyInfo.getAlgParameters());

        return encryptedPrivateKeyInfo.getKeySpec(cipher);
    }
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      Cipher cipher = Cipher.getInstance(PBE_CIPHER);
      cipher.init(
          Cipher.ENCRYPT_MODE, pkcs8EncryptionKey, new PBEParameterSpec(salt, PBE_ITERATION_COUNT));
      byte[] encryptedKey = cipher.doFinal(key.getEncoded());
      EncryptedPrivateKeyInfo inf = new EncryptedPrivateKeyInfo(cipher.getParameters(), encryptedKey);
      return inf.getEncoded();
    } catch (GeneralSecurityException e) {
      throw new KeyczarException(Messages.getString("KeyczarTool.FailedToEncryptPrivateKey"), e);
    } catch (IOException e) {
      // This should be impossible.
      throw new KeyczarException(Messages.getString("KeyczarTool.FailedToEncryptPrivateKey"), e);
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  {
    if (trustedCerts.containsKey(alias))
      throw new KeyStoreException("\"" + alias + "\" is a trusted certificate entry");
    try
      {
        new EncryptedPrivateKeyInfo(encodedKey);
      }
    catch (IOException ioe)
      {
        throw new KeyStoreException("encoded key is not an EncryptedPrivateKeyInfo");
      }
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  private static byte[] decryptKey(byte[] encryptedPKI, byte[] passwd)
    throws UnrecoverableKeyException
  {
    try
      {
        EncryptedPrivateKeyInfo epki =
          new EncryptedPrivateKeyInfo(encryptedPKI);
        byte[] encr = epki.getEncryptedData();
        byte[] keystream = new byte[20];
        System.arraycopy(encr, 0, keystream, 0, 20);
        byte[] check = new byte[20];
        System.arraycopy(encr, encr.length-20, check, 0, 20);
        byte[] key = new byte[encr.length - 40];
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        sha.update(passwd);
        sha.update(k);
        sha.digest(encrypted, encrypted.length - 20, 20);
        // 1.3.6.1.4.1.42.2.17.1.1 is Sun's private OID for this
        // encryption algorithm.
        return new EncryptedPrivateKeyInfo("1.3.6.1.4.1.42.2.17.1.1",
                                           encrypted).getEncoded();
      }
    catch (Exception x)
      {
        throw new KeyStoreException(x.getMessage());
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        if (password == null || password.length == 0) {
            return new PKCS8EncodedKeySpec(key);
        }

        EncryptedPrivateKeyInfo encryptedPrivateKeyInfo = new EncryptedPrivateKeyInfo(key);
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(encryptedPrivateKeyInfo.getAlgName());
        PBEKeySpec pbeKeySpec = new PBEKeySpec(password);
        SecretKey pbeKey = keyFactory.generateSecret(pbeKeySpec);

        Cipher cipher = Cipher.getInstance(encryptedPrivateKeyInfo.getAlgName());
        cipher.init(Cipher.DECRYPT_MODE, pbeKey, encryptedPrivateKeyInfo.getAlgParameters());

        return encryptedPrivateKeyInfo.getKeySpec(cipher);
    }
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