将mcrypt_generic转换为openssl_encrypt [英] Convert mcrypt_generic to openssl_encrypt

问题描述

PHP不再支持mcrypt.我必须做出一个具有完全相同输出的OpenSSL替代方案，因为我只能访问一半的代码库.我的尝试都失败了.如您所见，以下操作系统与MC不匹配.我尝试了不同的 $methods 和OPENSSL_RAW_DATA | OPENSSL_ZERO_PADDING的组合.

PHP no longer supports mcrypt. I have to make an OpenSSL alternative that has the exact same output as I only have access to half the code base. My attempts have all failed. As you can see below OS doesn't match MC. I've tried different $methods and combinations of OPENSSL_RAW_DATA | OPENSSL_ZERO_PADDING.

我要去哪里错了?

const n = "\n";
$text= 'hello my friends';
$method = 'AES-128-CBC';
$key = base64_decode('AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA');
$text = base64_decode('MDEyMzQ1Njc4OUFCQ0RFRgAAAAYxMjM0NTYxMjMDAwM=');
$size = openssl_cipher_iv_length($method);
$iv = substr($key, 0, $size);

// MCRYPT METHOD
$module = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, '');
mcrypt_generic_init($module, $key, $iv);
$mcrypt = mcrypt_generic($module, $text);

// OPENSSL METHOD
$method = 'AES-128-CBC';
$openssl = openssl_encrypt($text, $method, $key, OPENSSL_RAW_DATA | OPENSSL_ZERO_PADDING, $iv);

echo "MC: " . base64_encode($mcrypt) . n;
echo "OS: " . base64_encode($openssl) . n;

/*
MC: 9+gMhSSAHhJ4g4rdjwP02YQJTfU2qEThBco+W9ob9UU=
OS: Qsz5HitF4X+2DV48wh7ExCjWjGEOAl88MKXk/g24Z/I=
*/

推荐答案

Mcrypts: MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC

等效于:

OPENSSL: AES-256-CBC

我不知道为什么会有区别，但是更改128 to 256可以为我解决.

I have no idea why there's the difference, but changing the 128 to 256 solved it for me.

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