<?php
function padding($msg,$nb_chars)
{
$charset = array('a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z','0','1','2','3','4','5','6','7','8','9');
for($cpt=0;$cpt<$nb_chars;$cpt++)
{
$rand = rand(0,61);
print("!!!!!!!!!!!!!!!!!".$rand);
$msg .= $charset[$rand];
}
return $msg;
}
function mac($msg)
{
$key = "7h3_1337_k3y";
$nonce = "5uc3m01";
$bloc_size = 64;
if(strlen($msg)<$bloc_size)
{
$msg = padding($msg,$bloc_size-strlen($msg));
$mac = $msg;
}
else if(strlen($msg)==$bloc_size)
{
$mac = $msg;
}
else if(strlen($msg)>$bloc_size)
{
$mac = hash_hmac("sha512",$msg.$nonce,$key,true);
}
return crypt($mac,'$6$rounds=5000$OhMyG05h!');
}
$lemessage="UNMESSAGEASSEZLONGPOURTOMBERDANSLECASDUHASHMAPETREGENERERUNHASHAVECLEHASHDECETTEVALEUR";
$mac = mac($lemessage);
$valuemac=hash_hmac("sha512","123456789012345678901234567890123456789012345678901234567890123455uc3m01","7h3_1337_k3y",false);
print("**".strlen($valuemac)."***".$valuemac."*******");
$mac2=eval('return hex2bin("c210825a47af7f8869fb6e11adc9dd3eceb85735c47807badaff958f0af386f5e3f7e24c15034ff6dc71d117697f5853da05bb76ec7086d07f25b53f707d9477");');
$b=mac($mac2);
if($mac==$b)
{
print("OK");
}
else{
print("KO");
}
print($mac);
print($b);
preferences:
41.78 ms | 402 KiB | 5 Q