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

Example 26 with DESKeySpec

use of javax.crypto.spec.DESKeySpec in project smartmodule by carozhu.

the class DESUtils method encrypt.

/**
 * 加密
 *
 * @param bytesContent
 *            待加密内容
 * @param key
 *            加密的密钥
 * @return
 */
public static byte[] encrypt(byte[] bytesContent, String key) {
    try {
        SecureRandom random = new SecureRandom();
        DESKeySpec desKey = new DESKeySpec(key.getBytes());
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
        SecretKey securekey = keyFactory.generateSecret(desKey);
        Cipher cipher = Cipher.getInstance("DES");
        cipher.init(Cipher.ENCRYPT_MODE, securekey, random);
        byte[] result = cipher.doFinal(bytesContent);
        return result;
    } catch (Throwable e) {
        e.printStackTrace();
    }
    return null;
}

Example 27 with DESKeySpec

use of javax.crypto.spec.DESKeySpec in project yyl_example by Relucent.

the class DesExample method encrypt.

/**
 * 根据密匙加密数据*
 */
public static byte[] encrypt(byte[] data, byte[] keydate) throws Exception {
    DESKeySpec dks = new DESKeySpec(keydate);
    // 创建一个密匙工厂
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
    SecretKey key = keyFactory.generateSecret(dks);
    // Cipher对象实际完成加密操作
    Cipher cipher = Cipher.getInstance("DES");
    // 用密匙初始化Cipher对象
    cipher.init(Cipher.ENCRYPT_MODE, key, new SecureRandom());
    // 执行加密操作
    return cipher.doFinal(data);
}

Example 28 with DESKeySpec

use of javax.crypto.spec.DESKeySpec in project yyl_example by Relucent.

the class DesExample method decode.

public static byte[] decode(byte[] bytes, byte[] keydate) throws Exception {
    // 从原始密匙数据创建一个DESKeySpec对象
    DESKeySpec dks = new DESKeySpec(keydate);
    // 创建一个密匙工厂获得SecretKey对象
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
    SecretKey key = keyFactory.generateSecret(dks);
    // Cipher对象实际完成解密操作
    Cipher cipher = Cipher.getInstance("DES");
    // 用密匙初始化Cipher对象
    cipher.init(Cipher.DECRYPT_MODE, key, new SecureRandom());
    // 执行解密操作
    return cipher.doFinal(bytes);
}

Example 29 with DESKeySpec

use of javax.crypto.spec.DESKeySpec in project newsrob by marianokamp.

the class EntryManager method getSecretKey.

private static SecretKey getSecretKey() throws InvalidKeyException, UnsupportedEncodingException, NoSuchAlgorithmException, InvalidKeySpecException {
    DESKeySpec keySpec = new DESKeySpec("EntryManager.class".getBytes("UTF8"));
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
    SecretKey secretKey = keyFactory.generateSecret(keySpec);
    return secretKey;
}

Example 30 with DESKeySpec

use of javax.crypto.spec.DESKeySpec in project DataX by alibaba.

the class DESCipher method encrypt.

/**
 * 　　* 加密
 *
 * 　　*
 *
 * 　　* @param src
 *
 * 　　* 明文(字节)
 *
 * 　　* @param key
 *
 * 　　* 密钥，长度必须是8的倍数
 *
 * 　　* @return 密文(字节)
 *
 * 　　* @throws Exception
 *
 * 　　
 */
public static byte[] encrypt(byte[] src, byte[] key) throws Exception {
    // DES算法要求有一个可信任的随机数源
    SecureRandom sr = new SecureRandom();
    // 从原始密匙数据创建DESKeySpec对象
    DESKeySpec dks = new DESKeySpec(key);
    // 创建一个密匙工厂，然后用它把DESKeySpec转换成
    // 一个SecretKey对象
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(DES);
    SecretKey securekey = keyFactory.generateSecret(dks);
    // Cipher对象实际完成加密操作
    Cipher cipher = Cipher.getInstance(DES);
    // 用密匙初始化Cipher对象
    cipher.init(Cipher.ENCRYPT_MODE, securekey, sr);
    return cipher.doFinal(src);
}