复制代码 代码如下:
0){
        if($type==decode){
            $modcountstr=substr($tex,6,1);
            $modcount=$modcountstr==a?10:floor($modcountstr);
            $modnum=substr($tex,7,$modcount);
            $rand_key=$rand_key.(floor((time()-$modnum)/$expiry));
        }else{
            $modnum=time()%$expiry;
            $modcount=strlen($modnum);
            $modcountstr=$modcount==10?a:$modcount;
$rand_key=$rand_key.(floor(time()/$expiry));           
        }
        $tex=$type==decode?base64_decode(substr($tex, (7+$modcount))):xugui.$tex;
    }else{
        $tex=$type==decode?base64_decode(substr($tex, 6)):xugui.$tex;
    }
    $rand_key=md5($rand_key);
    $texlen=strlen($tex);
    $reslutstr=;
    for($i=0;$i        $reslutstr.=$tex{$i}^$rand_key{$i%32};
    }
    if($type!=decode){
        $reslutstr=trim(base64_encode($reslutstr),==);
        $reslutstr=$modcount?$modcountstr.$modnum.$reslutstr:$reslutstr;
        $reslutstr=$key_b.$reslutstr;
        $reslutstr=substr(md5($reslutstr), 0,8).$reslutstr;
    }else{
        if(substr($reslutstr,0, 5)!=xugui){
            return false;
        }
        $reslutstr=substr($reslutstr, 5);
    }
    return $reslutstr;
}
$psa=encode_pass(woshi ceshi yong de ,taintainxousad,encode,120);
echo $psa;
echo \r\n解密：;
echo encode_pass($psa,taintainxousad,'decode',120);
?>
该函数具有时效性，只要过期就不能解密！通过时间动态加密 加密后数据多样化，增加破解难度
http://www.bkjia.com/phpjc/327688.htmlwww.bkjia.comtruehttp://www.bkjia.com/phpjc/327688.htmltecharticle复制代码 代码如下: ?php function encode_pass($tex,$key,$type=encode,$expiry=0){ $chrarr=array('a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s',...