Examples with AlgorithmParameterSpec java.security.spec.AlgorithmParameterSpec used on opensource projects

Example 86 with AlgorithmParameterSpec

use of java.security.spec.AlgorithmParameterSpec in project mule by mulesoft.

the class SecretKeyEncryptionStrategy method createAndInitCiphers.

@Override
protected void createAndInitCiphers() throws GeneralSecurityException {
    encryptCipher = Cipher.getInstance(getAlgorithm());
    decryptCipher = Cipher.getInstance(getAlgorithm());
    AlgorithmParameterSpec paramSpec = createAlgorithmParameterSpec();
    if (paramSpec != null) {
        encryptCipher.init(Cipher.ENCRYPT_MODE, (SecretKeySpec) keySpec, paramSpec);
        decryptCipher.init(Cipher.DECRYPT_MODE, (SecretKeySpec) keySpec, paramSpec);
    } else {
        encryptCipher.init(Cipher.ENCRYPT_MODE, (SecretKeySpec) keySpec);
        decryptCipher.init(Cipher.DECRYPT_MODE, (SecretKeySpec) keySpec);
    }
}

Example 87 with AlgorithmParameterSpec

use of java.security.spec.AlgorithmParameterSpec in project BiglyBT by BiglySoftware.

the class PEMUtilities method crypt.

static byte[] crypt(boolean encrypt, String provider, byte[] bytes, char[] password, String dekAlgName, byte[] iv) throws IOException {
    AlgorithmParameterSpec paramSpec = new IvParameterSpec(iv);
    String alg;
    String blockMode = "CBC";
    String padding = "PKCS5Padding";
    Key sKey;
    // Figure out block mode and padding.
    if (dekAlgName.endsWith("-CFB")) {
        blockMode = "CFB";
        padding = "NoPadding";
    }
    if (dekAlgName.endsWith("-ECB") || "DES-EDE".equals(dekAlgName) || "DES-EDE3".equals(dekAlgName)) {
        // ECB is actually the default (though seldom used) when OpenSSL
        // uses DES-EDE (des2) or DES-EDE3 (des3).
        blockMode = "ECB";
        paramSpec = null;
    }
    if (dekAlgName.endsWith("-OFB")) {
        blockMode = "OFB";
        padding = "NoPadding";
    }
    // Figure out algorithm and key size.
    if (dekAlgName.startsWith("DES-EDE")) {
        alg = "DESede";
        // "DES-EDE" is actually des2 in OpenSSL-speak!
        // "DES-EDE3" is des3.
        boolean des2 = !dekAlgName.startsWith("DES-EDE3");
        sKey = getKey(password, alg, 24, iv, des2);
    } else if (dekAlgName.startsWith("DES-")) {
        alg = "DES";
        sKey = getKey(password, alg, 8, iv);
    } else if (dekAlgName.startsWith("BF-")) {
        alg = "Blowfish";
        sKey = getKey(password, alg, 16, iv);
    } else if (dekAlgName.startsWith("RC2-")) {
        alg = "RC2";
        int keyBits = 128;
        if (dekAlgName.startsWith("RC2-40-")) {
            keyBits = 40;
        } else if (dekAlgName.startsWith("RC2-64-")) {
            keyBits = 64;
        }
        sKey = getKey(password, alg, keyBits / 8, iv);
        if (// ECB block mode
        paramSpec == null) {
            paramSpec = new RC2ParameterSpec(keyBits);
        } else {
            paramSpec = new RC2ParameterSpec(keyBits, iv);
        }
    } else if (dekAlgName.startsWith("AES-")) {
        alg = "AES";
        byte[] salt = iv;
        if (salt.length > 8) {
            salt = new byte[8];
            System.arraycopy(iv, 0, salt, 0, 8);
        }
        int keyBits;
        if (dekAlgName.startsWith("AES-128-")) {
            keyBits = 128;
        } else if (dekAlgName.startsWith("AES-192-")) {
            keyBits = 192;
        } else if (dekAlgName.startsWith("AES-256-")) {
            keyBits = 256;
        } else {
            throw new IOException("unknown AES encryption with private key");
        }
        sKey = getKey(password, "AES", keyBits / 8, salt);
    } else {
        throw new IOException("unknown encryption with private key");
    }
    String transformation = alg + "/" + blockMode + "/" + padding;
    try {
        Cipher c = Cipher.getInstance(transformation, provider);
        int mode = encrypt ? Cipher.ENCRYPT_MODE : Cipher.DECRYPT_MODE;
        if (// ECB block mode
        paramSpec == null) {
            c.init(mode, sKey);
        } else {
            c.init(mode, sKey, paramSpec);
        }
        return c.doFinal(bytes);
    } catch (Exception e) {
        throw new IOException("exception using cipher: " + e.toString());
    }
}

Example 88 with AlgorithmParameterSpec

use of java.security.spec.AlgorithmParameterSpec in project AppCenter-SDK-Android by Microsoft.

the class CryptoDefaultKeyGeneratorMockTest method checkParametersPassingForKeyGenerator.

@Test
public void checkParametersPassingForKeyGenerator() throws Exception {
    mockStatic(KeyGenerator.class);
    KeyGenerator mockKeyGenerator = mock(KeyGenerator.class);
    when(KeyGenerator.getInstance(anyString(), anyString())).thenReturn(mockKeyGenerator);
    CryptoUtils.IKeyGenerator keyGenerator = CryptoUtils.DEFAULT_CRYPTO_FACTORY.getKeyGenerator("AES", "MockProvider");
    AlgorithmParameterSpec parameters = mock(AlgorithmParameterSpec.class);
    keyGenerator.init(parameters);
    verify(mockKeyGenerator).init(parameters);
    keyGenerator.generateKey();
    verify(mockKeyGenerator).generateKey();
}

Example 89 with AlgorithmParameterSpec

use of java.security.spec.AlgorithmParameterSpec in project jmulticard by ctt-gob-es.

the class JseCryptoHelper method getEcPoint.

@Override
public AlgorithmParameterSpec getEcPoint(final byte[] nonceS, final byte[] sharedSecretH, final EcCurve curveName) {
    final AlgorithmParameterSpec ecParams = ECNamedCurveTable.getParameterSpec(curveName.toString());
    final BigInteger affineX = os2i(sharedSecretH);
    final BigInteger affineY = computeAffineY(affineX, (ECParameterSpec) ecParams);
    final ECPoint sharedSecretPointH = new ECPoint(affineX, affineY);
    return mapNonceGMWithECDH(os2i(nonceS), sharedSecretPointH, (ECParameterSpec) ecParams);
}

Example 90 with AlgorithmParameterSpec

use of java.security.spec.AlgorithmParameterSpec in project conceal by facebook.

the class AESCipher method getInstance.

public static AESCipher getInstance() {
    byte[] iv = new byte[16];
    byte[] key = new byte[16];
    SecureRandom random = new SecureRandom();
    random.nextBytes(iv);
    random.nextBytes(key);
    AlgorithmParameterSpec spec = new IvParameterSpec(iv);
    return new AESCipher(spec, new SecretKeySpec(key, "AES"));
}