php - PHP 中的 AES-256 加密

Question

我需要一个 PHP 函数，AES256_encode($dataToEcrypt) 将 $data 加密为 AES-256 和另一个 AES256_decode($encryptedData) 做相反的事情。有谁知道这个函数应该有什么代码？

Answer 1

看看mcrypt module

AES-Rijndael 示例取自 here

$iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC);
$iv = mcrypt_create_iv($iv_size, MCRYPT_DEV_URANDOM);
$key = pack('H*', "bcb04b7e103a0cd8b54763051cef08bc55abe029fdebae5e1d417e2ffb2a00a3");
# show key size use either 16, 24 or 32 byte keys for AES-128, 192
# and 256 respectively
$key_size =  strlen($key);
echo "Key size: " . $key_size . "\n";
$text = "Meet me at 11 o'clock behind the monument.";
echo strlen($text) . "\n";

$crypttext = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key, $text, MCRYPT_MODE_CBC, $iv);
echo strlen($crypttext) . "\n";

这是 decrypt function