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PHP源码RC4加解密源码对应E4A的RC4加解密全网唯一[复制链接]
PHP源码RC4加解密源码对应E4A的RC4加解密全网唯一
网页加解密源码对接E4A的RC4加解密!
<?php
/*
* rc4加密算法,对接E4A的RC4加解密
* $pwd 密钥
* $data 要加密的数据
*/
//"==========e4a加密调用=============";
$key ='qq125934506';//--密钥
$enstr = bin2hex(rc4('作者QQ:125934506', $key));
echo 'rc4-对应e4a加密:'.$enstr. '<br> <br>';
//"==========e4a解密调用=============";
$destr = rc4(hex2bin($enstr), $key);
echo "rc4-对应e4a解密:" . $destr;
function rc4($data, $pwd) {
$key[] = "";
$box[] = "";
$pwd_length = strlen($pwd);
$data_length = strlen($data);
$cipher = '';
for ($i = 0; $i < 256; $i++) {
$key[$i] = ord($pwd[$i % $pwd_length]);
$box[$i] = $i;
}
for ($j = $i = 0; $i < 256; $i++) {
$j = ($j + $box[$i] + $key[$i]) % 256;
$tmp = $box[$i];
$box[$i] = $box[$j];
$box[$j] = $tmp;
}
for ($a = $j = $i = 0; $i < $data_length; $i++) {
$a = ($a + 1) % 256;
$j = ($j + $box[$a]) % 256;
$tmp = $box[$a];
$box[$a] = $box[$j];
$box[$j] = $tmp;
$k = $box[(($box[$a] + $box[$j]) % 256)];
$cipher .= chr(ord($data[$i]) ^ $k);
}
return $cipher;
}
?>
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