/**
* Sign a message, using your secret key
*
* @param string|resource $sealed
* @param EncryptionPublicKey $publicKey
* @return string
*/
public function signAsymmetric($message, SignatureSecretKey $secretKey, array $options = []) : string
{
$signature = '';
$signed = \openssl_sign($message, $signature, $secretKey->getPEM(), 'sha384WithRSAEncryption');
if ($signed) {
return binhex($signature);
}
}
// WTF IS HEXADECIMAL REPRESENTATION IF IT DOESN'T CONVERT TO REAL HEX?
// F**k?!
// Converts binary to ( --> hexadecimal representation <-- )
echo bin2hex(11111111) . PHP_EOL;
// 3131313131313131
/*
This function is for converting binary data into a hexadecimal string representation.
This function is not for converting strings representing binary digits into hexadecimal.
If you want that functionality, you can simply do this:
*/
$binary = "11111111";
$hex = dechex(bindec($binary));
echo $hex . PHP_EOL;
// Another example from php.net:
// -------------------------------------------------------------------------------------------
// I thought it'll give me an "F" if i give it a "1111"...
// Here's something to convert a binary-string into a hex-string and other direction too:
function hexbin($hex)
{
$bin = decbin(hexdec($hex));
return $bin;
}
function binhex($bin)
{
$hex = dechex(bindec($bin));
return $hex;
}
echo hexbin('F') . PHP_EOL;
// 1111
echo binhex('1111') . PHP_EOL;
// f
function pdu2str($pduanswer)
{
$pdu = pack("H*", $pduanswer);
$bin = "";
for ($i = 0; $i < strlen($pdu); $i++) {
$bin .= strrev(sprintf("%08b", ord($pdu[$i])));
}
$hex = "";
while (strlen($bin) >= 7) {
$symbol = substr($bin, 0, 7);
$bin = substr($bin, 7);
$symbol = "0" . strrev($symbol);
$hex .= binhex(substr($symbol, 0, 4)) . binhex(substr($symbol, 4));
}
return pack("H*", $hex);
}