ISV Server解密手机号和邮箱

代码调用如下图所示。

/**
*
* 解密手机号码或邮箱
* @param key 秘钥
* @param str 密文
* @param encryptLength 加密长度
* @return 解密结果
*/
public static String decryptMobilePhoneOrEMail(String key, String str, int encryptLength)
{
if(null != str && str.length() > 16)
{
String iv = str.substring(0, 16);
String encryptStr = str.substring(16);
String result = null;
try
{
result = decryptAESCBCEncode(encryptStr,
key,
iv,
encryptLength);
}
catch (InvalidKeyException | NoSuchAlgorithmException
| NoSuchPaddingException | InvalidAlgorithmParameterException
| IllegalBlockSizeException | BadPaddingException e)
{
//TODO:异常处理
}
return result;
}
return null;
}

/**
* 解密AES CBC
* @param content 原文
* @param key 秘钥
* @param iv 盐值
* @return 解密结果
* @throws BadPaddingException
* @throws IllegalBlockSizeException
* @throws InvalidAlgorithmParameterException
* @throws NoSuchPaddingException
* @throws NoSuchAlgorithmException
* @throws InvalidKeyException
*/
public static String decryptAESCBCEncode(String content, String key,
String iv, int encryptType) throws InvalidKeyException, NoSuchAlgorithmException, NoSuchPaddingException, InvalidAlgorithmParameterException, IllegalBlockSizeException, BadPaddingException
{
if (StringUtils.isEmpty(content) || StringUtils.isEmpty(key)
|| StringUtils.isEmpty(iv))
{
return null;
}
return new String(decryptAESCBC(Base64.decodeBase64(content.getBytes()),
key.getBytes(),
iv.getBytes(),encryptType));
}

public static byte[] decryptAESCBC(byte[] content, byte[] keyBytes,
byte[] iv, int encryptType) throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException, InvalidAlgorithmParameterException, IllegalBlockSizeException, BadPaddingException
{
KeyGenerator keyGenerator = KeyGenerator.getInstance("AES");
SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG");
secureRandom.setSeed(keyBytes);
keyGenerator.init(encryptType, secureRandom);
SecretKey key = keyGenerator.generateKey();
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
cipher.init(Cipher.DECRYPT_MODE, key, new IvParameterSpec(iv));
byte[] result = cipher.doFinal(content);
return result;
}