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我試圖在PHP和Javascript中加密/解密由隨機函數生成的$ session_key字符串。它適用,但不適用於所有字符串。如果使用一些$ session_key,結果就不一樣了。您可以看到打開瀏覽器控制檯的結果。XOR加密Javascript和PHP失敗,並帶有一些密鑰
<?php
function xor_this($str, $key) {
$result = '';
for ($i = 0; $i < strlen($str); $i++) {
$tmp = $str[$i];
for ($j = 0; $j < strlen($key); $j++) {
$tmp = chr(ord($tmp)^ord($key[$j]));
}
$result .= $tmp;
}
return $result;
}
#session_key generated by substr(str_shuffle("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"), 0, 40)
$session_key = 'h9PYAE6KceX5g7081SnjCFBpVfux3bRtmdyDWwHq';
$password = '9b06a9342b5ac4a825088a0f0c2a2e7cc091393f';
echo xor_this($session_key, $password);
?>
<html>
<script>
function xor_this(str,key)
{
var xor = "";
for (var i = 0; i < str.length; ++i) {
tmp = str[i];
for(var j = 0; j < key.length; ++j) {
tmp = String.fromCharCode(tmp.charCodeAt(0)^key.charCodeAt(j));
}
xor += tmp;
}
return xor;
}
var session_key = '<?php echo $session_key?>';
var password = '<?php echo $password?>';
console.log(xor_this(session_key,password));
</script>
</html>
也許我可以用base64編碼解決之前的字符串回聲它 –