| private static createContext ( $clientPublicKey, $serverPublicKey ) : string | ||
| $clientPublicKey | string The client's public key | |
| $serverPublicKey | string Our public key | |
| return | string | |
private static function createContext($clientPublicKey, $serverPublicKey)
{
if (Utils::safeStrlen($clientPublicKey) !== 65) {
throw new \ErrorException('Invalid client public key length');
}
// This one should never happen, because it's our code that generates the key
if (Utils::safeStrlen($serverPublicKey) !== 65) {
throw new \ErrorException('Invalid server public key length');
}
$len = chr(0) . 'A';
// 65 as Uint16BE
return chr(0) . $len . $clientPublicKey . $len . $serverPublicKey;
}