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

Example 56 with DESKeySpec

use of javax.crypto.spec.DESKeySpec in project protools by SeanDragon.

the class ToolDES method toKey.

/**
 * 转换密钥
 *
 * @param key
 *         二进制密钥
 *
 * @return Key 密钥
 *
 * @throws Exception
 */
private static Key toKey(byte[] key) throws InvalidKeyException, NoSuchAlgorithmException, InvalidKeySpecException {
    // 实例化DES密钥材料
    DESKeySpec dks = new DESKeySpec(key);
    // 实例化秘密密钥工厂
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(KEY_ALGORITHM);
    // 生成秘密密钥
    SecretKey secretKey = keyFactory.generateSecret(dks);
    return secretKey;
}

Example 57 with DESKeySpec

use of javax.crypto.spec.DESKeySpec in project happy-dns-android by qiniu.

the class DES method encrypt.

/**
 * Convert data to encrypted hex string
 * @param data data to encrypt
 * @param key encrypt key
 * @return hex string
 */
public static String encrypt(String data, String key) {
    try {
        Cipher c = Cipher.getInstance("DES/ECB/PKCS5Padding");
        c.init(Cipher.ENCRYPT_MODE, SecretKeyFactory.getInstance("DES").generateSecret(new DESKeySpec(key.getBytes())));
        return Hex.encodeHexString(c.doFinal(data.getBytes()));
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

Example 58 with DESKeySpec

use of javax.crypto.spec.DESKeySpec in project afwall by ukanth.

the class Api method unhideCrypt.

/**
 * Decrypt the password
 *
 * @param key
 * @param data
 * @return
 */
public static String unhideCrypt(String key, String data) {
    if (key == null || data == null)
        return null;
    String decryptStr = null;
    try {
        byte[] dataBytes = Base64.decode(data, base64Mode);
        DESKeySpec desKeySpec = new DESKeySpec(key.getBytes(charsetName));
        SecretKeyFactory secretKeyFactory = SecretKeyFactory.getInstance(algorithm);
        SecretKey secretKey = secretKeyFactory.generateSecret(desKeySpec);
        Cipher cipher = Cipher.getInstance(algorithm);
        cipher.init(Cipher.DECRYPT_MODE, secretKey);
        byte[] dataBytesDecrypted = (cipher.doFinal(dataBytes));
        decryptStr = new String(dataBytesDecrypted);
    } catch (Exception e) {
        Log.e(TAG, e.getLocalizedMessage());
    }
    return decryptStr;
}

Example 59 with DESKeySpec

use of javax.crypto.spec.DESKeySpec in project afwall by ukanth.

the class Api method hideCrypt.

/**
 * Encrypt the password
 *
 * @param key
 * @param data
 * @return
 */
public static String hideCrypt(String key, String data) {
    if (key == null || data == null)
        return null;
    String encodeStr = null;
    try {
        DESKeySpec desKeySpec = new DESKeySpec(key.getBytes(charsetName));
        SecretKeyFactory secretKeyFactory = SecretKeyFactory.getInstance(algorithm);
        SecretKey secretKey = secretKeyFactory.generateSecret(desKeySpec);
        byte[] dataBytes = data.getBytes(charsetName);
        Cipher cipher = Cipher.getInstance(algorithm);
        cipher.init(Cipher.ENCRYPT_MODE, secretKey);
        encodeStr = Base64.encodeToString(cipher.doFinal(dataBytes), base64Mode);
    } catch (Exception e) {
        Log.e(TAG, e.getLocalizedMessage());
    }
    return encodeStr;
}

Example 60 with DESKeySpec

use of javax.crypto.spec.DESKeySpec in project XUtil by xuexiangjys.

the class CipherUtils method getDESKey.

/**
 * 返回可逆算法DES的密钥
 *
 * @param key 前8字节将被用来生成密钥。
 * @return 生成的密钥
 * @throws Exception
 */
public static Key getDESKey(byte[] key) throws Exception {
    DESKeySpec des = new DESKeySpec(key);
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
    return keyFactory.generateSecret(des);
}