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一个简单的php加密解密函数(动态加密)_PHP教程

复制代码 代码如下:
function encode_pass($tex,$key,$type=encode){
    $chrarr=array('a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z',
                  'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z',
                  '0','1','2','3','4','5','6','7','8','9');
    if($type==decode){
        if(strlen($tex)        $verity_str=substr($tex, 0,8);
        $tex=substr($tex, 8);
        if($verity_str!=substr(md5($tex),0,8)){
            //完整性验证失败
            return false;
        }   
    }
    $key_b=$type==decode?substr($tex,0,6):$chrarr[rand()%62].$chrarr[rand()%62].$chrarr[rand()%62].$chrarr[rand()%62].$chrarr[rand()%62].$chrarr[rand()%62];
    $rand_key=$key_b.$key;
    $rand_key=md5($rand_key);
    $tex=$type==decode?base64_decode(substr($tex, 6)):$tex;
    $texlen=strlen($tex);
    $reslutstr=;
    for($i=0;$i        $reslutstr.=$tex{$i}^$rand_key{$i%32};
    }
    if($type!=decode){
        $reslutstr=trim($key_b.base64_encode($reslutstr),==);
        $reslutstr=substr(md5($reslutstr), 0,8).$reslutstr;
    }
    return $reslutstr;
}
$psa=encode_pass(phpcode,taintainxousad);
echo $psa;
echo encode_pass($psa,taintainxousad,'decode');
http://www.bkjia.com/phpjc/327689.htmlwww.bkjia.comtruehttp://www.bkjia.com/phpjc/327689.htmltecharticle复制代码 代码如下: function encode_pass($tex,$key,$type=encode){ $chrarr=array('a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w'...
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