mirrors/PocketMine-MP
1
0
Fork 0
mirror of https://github.com/pmmp/PocketMine-MP.git synced 2025-09-07 10:22:56 +00:00
Code Issues Projects Releases Wiki Activity

Extract more general-purpose logic to JwtUtils

Browse Source 
this code could now be reused for creating custom login packets.
This commit is contained in:
Dylan K. Taylor
2020-05-13 20:46:01 +01:00
parent 161ac468f3
commit d7eb4f9651
3 changed files with 89 additions and 53 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
src/network/mcpe/encryption/EncryptionUtils.php
View File

@ -25,17 +25,12 @@ namespace pocketmine\network\mcpe\encryption;
use Mdanter\Ecc\Crypto\Key\PrivateKeyInterface;
use Mdanter\Ecc\Crypto\Key\PublicKeyInterface;
use Mdanter\Ecc\Serializer\PrivateKey\DerPrivateKeySerializer;
use Mdanter\Ecc\Serializer\PrivateKey\PemPrivateKeySerializer;
use Mdanter\Ecc\Serializer\PublicKey\DerPublicKeySerializer;
use Mdanter\Ecc\Serializer\Signature\DerSignatureSerializer;
use pocketmine\network\mcpe\JwtUtils;
use function base64_encode;
use function gmp_strval;
use function hex2bin;
use function json_encode;
use function openssl_digest;
use function openssl_sign;
use function str_pad;
final class EncryptionUtils{
@ -53,23 +48,15 @@ final class EncryptionUtils{
}
public static function generateServerHandshakeJwt(PrivateKeyInterface $serverPriv, string $salt) : string{
$jwtBody = JwtUtils::b64UrlEncode(json_encode([
"x5u" => base64_encode((new DerPublicKeySerializer())->serialize($serverPriv->getPublicKey())),
"alg" => "ES384"
])
) . "." . JwtUtils::b64UrlEncode(json_encode([
"salt" => base64_encode($salt)
])
);
openssl_sign($jwtBody, $sig, (new PemPrivateKeySerializer(new DerPrivateKeySerializer()))->serialize($serverPriv), OPENSSL_ALGO_SHA384);
$decodedSig = (new DerSignatureSerializer())->parse($sig);
$jwtSig = JwtUtils::b64UrlEncode(
hex2bin(str_pad(gmp_strval($decodedSig->getR(), 16), 96, "0", STR_PAD_LEFT)) .
hex2bin(str_pad(gmp_strval($decodedSig->getS(), 16), 96, "0", STR_PAD_LEFT))
return JwtUtils::create(
[
"x5u" => base64_encode((new DerPublicKeySerializer())->serialize($serverPriv->getPublicKey())),
"alg" => "ES384"
],
[
"salt" => base64_encode($salt)
],
$serverPriv
);
return "$jwtBody.$jwtSig";
}
}