我想将这段PHP代码$a ^ $b
(其中a的长度为16,b的长度为32)转换成javascript代码。以下是我的实现。
var xor = "";
for (var i = 0; i < a.length; i++) {
xor += String.fromCharCode(a.charCodeAt(i) ^ b.charCodeAt(i));
}
xor = b.substr(-16) + xor;
然而,结果并不相同。请帮我想办法解决问题。谢谢。
顺便说一下,这是我正在处理的代码部分:
var secret = "secret";
var password = "password";
var chal = "2ba5565a539c57c1ce2356e218faa321";
var hexchal = php.pack('H32', chal);
var newchal, newpwd, pappassword;
newchal = php.pack('H*', php.md5(hexchal + secret));
newpwd = php.pack("a32", password);
var xor = "";
for (var i = 0; i < newchal.length; i++) {
xor += String.fromCharCode(newchal.charCodeAt(i) ^ newpwd.charCodeAt(i));
}
xor = newpwd.substr(-16) + xor;
对应的PHP代码:
<?php
$secret = "secret";
$password = "password";
$chal = "2ba5565a539c57c1ce2356e218faa321";
$hexchal = pack ("H32", $chal);
$newchal = pack ("H*", md5($hexchal . $secret));
$newpwd = pack("a32", $password);
$pappassword = implode ("", unpack("H32", ($newpwd ^ $newchal)));
echo $pappassword;
?>
其中a和b分别是newchal和newpwd,php.func()函数来源于http://phpjs.org/。预期输出结果为"821f984aa1062e56dbdc8f77454e5eb3"。
f27eeb39d6695c32dbdc8f77454e5eb3
异或7461746573740000000000000000000000000000000000000000000000000000
的结果为861f9f5ca51d5c32dbdc8f77454e5eb3
- 你能否也发布一个可工作的PHP版本? :) - Ja͢ck