java 加密解密工具类

jlusdy

/** * @param input * @return * @throws Exception */public static String encryptData(String input) throws Exception {SecureRandom sr = new SecureRandom();byte rawKeyData[] = "ABCDEFGH".getBytes();DESKeySpec dks = new DESKeySpec(rawKeyData);SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");SecretKey key = keyFactory.generateSecret(dks);Cipher c = Cipher.getInstance("DES");c.init(Cipher.ENCRYPT_MODE, key, sr);byte[] cipherByte = c.doFinal(input.getBytes());String dec = new BASE64Encoder().encode(cipherByte);return dec;}/** * @param input * @return * @throws Exception */public static String decryptData(String input) throws Exception {byte[] dec = new BASE64Decoder().decodeBuffer(input);SecureRandom sr = new SecureRandom();byte rawKeyData[] = "ABCDEFGH".getBytes();DESKeySpec dks = new DESKeySpec(rawKeyData);SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");SecretKey key = keyFactory.generateSecret(dks);Cipher c = Cipher.getInstance("DES");c.init(Cipher.DECRYPT_MODE, key, sr);byte[] clearByte = c.doFinal(dec);return new String(clearByte);}