因为老版本与线上环境的mcrypt不兼容,在php7.1上使用会报错,官网也说了:Warning
This function has been DEPRECATED as of PHP 7.1.0. Relying on this function is highly discouraged.
这里贴上解决办法。
先上7.0之前的代码:
<?php
class Security
{
public static function encrypt($input, $key, $iv) {
$localIV = $iv;
$module = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, $localIV);
mcrypt_generic_init($module, $key, $localIV);
$size = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC);
$input = Security::pkcs5_pad($input, $size);
$data = mcrypt_generic($module, $input);
mcrypt_generic_deinit($module);
mcrypt_module_close($module);
$data = base64_encode($data);
return $data;
}
private static function pkcs5_pad ($text, $blocksize) {
$pad = $blocksize - (strlen($text) % $blocksize);
return $text . str_repeat(chr($pad), $pad);
}
public static function decrypt($sStr, $key, $iv) {
$localIV = $iv;
$module = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, $localIV);
mcrypt_generic_init($module, $key, $localIV);
$encryptedData = base64_decode($sStr);
$encryptedData = mdecrypt_generic($module, $encryptedData);
$dec_s = strlen($encryptedData);
$padding = ord($encryptedData[$dec_s-1]);
$decrypted = substr($encryptedData, 0, -$padding);
mcrypt_generic_deinit($module);
mcrypt_module_close($module);
if(!$decrypted){
throw new Exception("Decrypt Error,Please Check SecretKey");
}
return $decrypted;
}
}
$key = 'abcdefghijklmnop'; // 16位(也可以不是16位,但当它大于16位时,7.1的openssl函数会截取前16位,有点坑)
$iv = '1234567890123456'; // 16位
echo '用来加密的串:------------------------';
echo $str = '中文数字123字母ABC符号!@#$%^&*()';
echo '<br />用7.1之前的mcrypt加密:------------------------';
echo $strEncode = Security::encrypt($str, $key, $iv);
echo '<br />用7.1之前的mcrypt解密:------------------------';
echo Security::decrypt($strEncode, $key, $iv);
然后是7.1的:
echo '<br />用PHP 7.1的openssl加密:------------------------';
echo base64_encode(openssl_encrypt($str, 'aes-128-cbc', $key, true, $iv));
echo '<br />用PHP 7.1的openssl解密:------------------------';
echo openssl_decrypt(base64_decode($strEncode), 'aes-128-cbc', $key, true, $iv);
输出结果:
用来加密的串:------------------------中文数字123字母ABC符号!@#$%^&*()
用7.1之前的mcrypt加密:------------------------l73zMo3B2Q73cXvPUjlgWNSJJKYWxOx3dj1f4E/Ml3LGa43mY2xHkqqf3HiyohIb
用7.1之前的mcrypt解密:------------------------中文数字123字母ABC符号!@#$%^&*()
用PHP 7.1的openssl加密:------------------------l73zMo3B2Q73cXvPUjlgWNSJJKYWxOx3dj1f4E/Ml3LGa43mY2xHkqqf3HiyohIb
用PHP 7.1的openssl解密:------------------------中文数字123字母ABC符号!@#$%^&*()
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