PHP对AES解密

jieqi

https://bbs.125.la/forum.php?mod ... ;highlight=CryptoJS
站内这个模块可以解密

第三方平台也能解出来https://www.idcd.com/tool/encrypt/aes


我用PHP就是解不出

密文：U2FsdGVkX18tv01fcZrQVFqchiCK3gPn9zRRQH898D9ZVpODDIRGH2iP5vEhupiHWVXQK67d0anJafQ6qaM0lhp3jJvKqkoiOAXBcqOzVrhDcnYIUNLpZJ4T0SxZbhxzuTZbYmT9yx2FEnBO/Mz9bg==
密码：8?)i_~Nk7qv0IX;



补充内容 (2023-8-22 02:03):
来个会PHP的

番茄吧

[PHP] 纯文本查看 复制代码

<?php

function evpKDF($password, $salt, $keySize = 8, $ivSize = 4, $iterations = 1, $hashAlgorithm = "md5") {
$targetKeySize = $keySize + $ivSize;

$derivedBytes = "";

$numberOfDerivedWords = 0;

$block = NULL;

$hasher = hash_init($hashAlgorithm);

while ($numberOfDerivedWords < $targetKeySize) {
if ($block != NULL) {
hash_update($hasher, $block);

}

hash_update($hasher, $password);

hash_update($hasher, $salt);

$block = hash_final($hasher, TRUE);

$hasher = hash_init($hashAlgorithm);

// Iterations

for ($i = 1; $i < $iterations; $i++) {
hash_update($hasher, $block);

$block = hash_final($hasher, TRUE);

$hasher = hash_init($hashAlgorithm);

}

$derivedBytes .= substr($block, 0, min(strlen($block), ($targetKeySize - $numberOfDerivedWords) * 4));

$numberOfDerivedWords += strlen($block)/4;

}

return array(

"key" => substr($derivedBytes, 0, $keySize * 4),

"iv" => substr($derivedBytes, $keySize * 4, $ivSize * 4)

);

}

function decrypt($ciphertext, $password){
$ciphertext = base64_decode($ciphertext);

if( substr($ciphertext, 0, 8) != "Salted__" ){
return false;

}

$salt = substr($ciphertext, 8, 8);

$keyAndIV = evpKDF($password, $salt);

$decryptPassword = openssl_decrypt(

substr($ciphertext, 16),

"aes-256-cbc",

$keyAndIV["key"],

OPENSSL_RAW_DATA, // base64 was already decoded

$keyAndIV["iv"]);

return $decryptPassword;

}

$ciphertext="U2FsdGVkX18tv01fcZrQVFqchiCK3gPn9zRRQH898D9ZVpODDIRGH2iP5vEhupiHWVXQK67d0anJafQ6qaM0lhp3jJvKqkoiOAXBcqOzVrhDcnYIUNLpZJ4T0SxZbhxzuTZbYmT9yx2FEnBO/Mz9bg==";

$password="8?)i_~Nk7qv0IX;";

echo decrypt($ciphertext,$password);
?>

这样就可以了

逍遥一仙LSG

参见：https://bbs.125.la/forum.php?mod ... 14699359&extra=

可自行改写为php

帅怨

PHP中AES加解密源码 https://bbs.125.la/forum.php?mod=viewthread&tid=14793338 (出处: 精易论坛)

番茄吧

逍遥一仙LSG 发表于 2023-8-22 09:30
参见：https://bbs.125.la/forum.php?mod=viewthread&tid=14699359&extra=

可自行改写为php

早上研究一早上，才研究明白，没想到早就有了，感觉这东西肯定有个标准，只是没见过