Examples with InvalidCipherTextException org.bouncycastle.crypto.InvalidCipherTextException used on opensource projects

Example 41 with InvalidCipherTextException

use of org.bouncycastle.crypto.InvalidCipherTextException in project rskj by rsksmart.

the class ECIESCoder method encrypt.

public static byte[] encrypt(ECPoint toPub, byte[] plaintext, byte[] macData) {
    ECKeyPairGenerator eGen = new ECKeyPairGenerator();
    SecureRandom random = new SecureRandom();
    KeyGenerationParameters gParam = new ECKeyGenerationParameters(CURVE, random);
    eGen.init(gParam);
    byte[] iv = new byte[KEY_SIZE / 8];
    new SecureRandom().nextBytes(iv);
    AsymmetricCipherKeyPair ephemPair = eGen.generateKeyPair();
    BigInteger prv = ((ECPrivateKeyParameters) ephemPair.getPrivate()).getD();
    ECPoint pub = ((ECPublicKeyParameters) ephemPair.getPublic()).getQ();
    EthereumIESEngine iesEngine = makeIESEngine(true, toPub, prv, iv);
    ECKeyGenerationParameters keygenParams = new ECKeyGenerationParameters(CURVE, random);
    ECKeyPairGenerator generator = new ECKeyPairGenerator();
    generator.init(keygenParams);
    ECKeyPairGenerator gen = new ECKeyPairGenerator();
    gen.init(new ECKeyGenerationParameters(ECKey.CURVE, random));
    byte[] cipher;
    try {
        cipher = iesEngine.processBlock(plaintext, 0, plaintext.length, macData);
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        bos.write(pub.getEncoded(false));
        bos.write(iv);
        bos.write(cipher);
        return bos.toByteArray();
    } catch (InvalidCipherTextException e) {
        throw Throwables.propagate(e);
    } catch (IOException e) {
        throw Throwables.propagate(e);
    }
}

Example 42 with InvalidCipherTextException

use of org.bouncycastle.crypto.InvalidCipherTextException in project zeppelin by apache.

the class Encryptor method decrypt.

public String decrypt(String base64Input) throws IOException {
    byte[] input = Base64.decode(base64Input);
    byte[] result = new byte[decryptCipher.getOutputSize(input.length)];
    int size = decryptCipher.processBytes(input, 0, input.length, result, 0);
    try {
        size += decryptCipher.doFinal(result, size);
        byte[] out = new byte[size];
        System.arraycopy(result, 0, out, 0, size);
        return new String(out);
    } catch (InvalidCipherTextException e) {
        throw new IOException("Cannot decrypt: " + e.getMessage(), e);
    }
}

Example 43 with InvalidCipherTextException

use of org.bouncycastle.crypto.InvalidCipherTextException in project zeppelin by apache.

the class Encryptor method encrypt.

public String encrypt(String inputString) throws IOException {
    byte[] input = inputString.getBytes();
    byte[] result = new byte[encryptCipher.getOutputSize(input.length)];
    int size = encryptCipher.processBytes(input, 0, input.length, result, 0);
    try {
        size += encryptCipher.doFinal(result, size);
        byte[] out = new byte[size];
        System.arraycopy(result, 0, out, 0, size);
        return new String(Base64.encode(out));
    } catch (InvalidCipherTextException e) {
        throw new IOException("Cannot encrypt: " + e.getMessage(), e);
    }
}

Example 44 with InvalidCipherTextException

use of org.bouncycastle.crypto.InvalidCipherTextException in project OsmAnd-tools by osmandapp.

the class SigningUtils method decryptPassphrase.

/**
 * Steps (4) to (7): Decrypt passphrase with secret key
 * @param pass passphrase from withdrawal request
 * @param key secret key
 * @return decrypted passphrase for next steps
 * @throws BlockIOException
 */
static byte[] decryptPassphrase(byte[] pass, byte[] key) throws BlockIOException {
    PaddedBufferedBlockCipher aes = new PaddedBufferedBlockCipher(new AESEngine());
    CipherParameters aesKey = new KeyParameter(key);
    aes.init(false, aesKey);
    try {
        return cipherData(aes, pass);
    } catch (InvalidCipherTextException e) {
        throw new BlockIOException("Unexpected error while signing transaction. Please file an issue report.");
    }
}

Example 45 with InvalidCipherTextException

use of org.bouncycastle.crypto.InvalidCipherTextException in project OsmAnd-tools by osmandapp.

the class SigningUtils method encryptPassphrase.

/**
 * Used only for testing: encrypt secret passphrase
 * @param plain plain passphrase
 * @param key secret key
 * @return encrypted passphrase
 * @throws BlockIOException
 */
static byte[] encryptPassphrase(String plain, byte[] key) throws BlockIOException {
    PaddedBufferedBlockCipher aes = new PaddedBufferedBlockCipher(new AESEngine());
    CipherParameters aesKey = new KeyParameter(key);
    aes.init(true, aesKey);
    try {
        return cipherData(aes, plain.getBytes("UTF-8"));
    } catch (InvalidCipherTextException e) {
        throw new BlockIOException("Unexpected error while signing transaction. Please file an issue report.");
    } catch (UnsupportedEncodingException e) {
        throw new BlockIOException("Your system does not seem to support UTF-8 encoding! Aborting signing process.");
    }
}