Crypt_MHAC example
hash($_COOKIE['data'])) {
echo "Validated!\n";
} else {
echo "";
}
} else {
$_COOKIE['data'] = '00110100011';
$_COOKIE['stamp'] = $hash->hash($_COOKIE['data']);
}
?>]]>
%pear install Crypt_HMAC%
RFC 2104 implementation
MD5 and SHA1 supported