Examples with PBEParameterSpec javax.crypto.spec.PBEParameterSpec used on opensource projects

Example 46 with PBEParameterSpec

use of javax.crypto.spec.PBEParameterSpec in project android-delicious by lexs.

the class ObscuredSharedPreferences method encrypt.

protected String encrypt(String value) {
    try {
        final byte[] bytes = value != null ? value.getBytes(UTF8) : new byte[0];
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("PBEWithMD5AndDES");
        SecretKey key = keyFactory.generateSecret(new PBEKeySpec(secret));
        Cipher pbeCipher = Cipher.getInstance("PBEWithMD5AndDES");
        pbeCipher.init(Cipher.ENCRYPT_MODE, key, new PBEParameterSpec(getSalt(), 20));
        return new String(Base64.encode(pbeCipher.doFinal(bytes), Base64.NO_WRAP), UTF8);
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

Example 47 with PBEParameterSpec

use of javax.crypto.spec.PBEParameterSpec in project android-delicious by lexs.

the class ObscuredSharedPreferences method decrypt.

protected String decrypt(String value) {
    try {
        final byte[] bytes = value != null ? Base64.decode(value, Base64.DEFAULT) : new byte[0];
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("PBEWithMD5AndDES");
        SecretKey key = keyFactory.generateSecret(new PBEKeySpec(secret));
        Cipher pbeCipher = Cipher.getInstance("PBEWithMD5AndDES");
        pbeCipher.init(Cipher.DECRYPT_MODE, key, new PBEParameterSpec(getSalt(), 20));
        return new String(pbeCipher.doFinal(bytes), UTF8);
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

Example 48 with PBEParameterSpec

use of javax.crypto.spec.PBEParameterSpec in project platformlayer by platformlayer.

the class NexusLdapPasswords method buildCipher.

private Cipher buildCipher(String passphrase, byte[] salt, int mode) throws InvalidKeySpecException, NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException, InvalidAlgorithmParameterException {
    KeySpec keySpec = new PBEKeySpec(passphrase.toCharArray());
    SecretKey key = SecretKeyFactory.getInstance(KEY_ALGORITHM, bouncyCastleProvider).generateSecret(keySpec);
    Cipher cipher = Cipher.getInstance(KEY_ALGORITHM, bouncyCastleProvider);
    PBEParameterSpec paramSpec = new PBEParameterSpec(salt, iterationCount);
    cipher.init(mode, key, paramSpec);
    return cipher;
}

Example 49 with PBEParameterSpec

use of javax.crypto.spec.PBEParameterSpec in project ButterRemote-Android by se-bastiaan.

the class ObscuredSharedPreferences method decrypt.

protected String decrypt(String value) {
    try {
        final byte[] bytes = value != null ? Base64.decode(value, Base64.DEFAULT) : new byte[0];
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(PBE_WITH_MD5_AND_DES);
        SecretKey key = keyFactory.generateSecret(new PBEKeySpec(SEKRIT));
        Cipher pbeCipher = Cipher.getInstance(PBE_WITH_MD5_AND_DES);
        pbeCipher.init(Cipher.DECRYPT_MODE, key, new PBEParameterSpec(Settings.Secure.getString(context.getContentResolver(), Settings.System.ANDROID_ID).getBytes(UTF8), 20));
        return new String(pbeCipher.doFinal(bytes), UTF8);
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

Example 50 with PBEParameterSpec

use of javax.crypto.spec.PBEParameterSpec in project symmetric-ds by JumpMind.

the class SecurityService method initializeCipher.

protected void initializeCipher(Cipher cipher, int mode) throws Exception {
    AlgorithmParameterSpec paramSpec = Cipher.getMaxAllowedParameterSpec(cipher.getAlgorithm());
    if (paramSpec instanceof PBEParameterSpec || (paramSpec == null && cipher.getAlgorithm().startsWith("PBE"))) {
        paramSpec = new PBEParameterSpec(SecurityConstants.SALT, SecurityConstants.ITERATION_COUNT);
        cipher.init(mode, secretKey, paramSpec);
    } else if (paramSpec instanceof IvParameterSpec) {
        paramSpec = new IvParameterSpec(SecurityConstants.SALT);
        cipher.init(mode, secretKey, paramSpec);
    } else {
        cipher.init(mode, secretKey, (AlgorithmParameterSpec) null);
    }
}