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Full support for both parties

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This commit is contained in:
Yazawazi
2022-07-13 12:30:56 +08:00
committed by Luke H-W
parent 0a557ccfcd
commit ae8b5e30ac
4 changed files with 41 additions and 46 deletions
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46
src/main/java/emu/grasscutter/server/packet/recv/HandlerGetPlayerTokenReq.java
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@@ -101,9 +101,29 @@ public class HandlerGetPlayerTokenReq extends PacketHandler {
// Only >= 2.7.50 has this
if (req.getKeyId() > 0) {
if (GAME_OPTIONS.uaPatchCompatible) {
// More love for ua patch plz 😭
try {
Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
cipher.init(Cipher.DECRYPT_MODE, Crypto.CUR_SIGNING_KEY);
var client_seed_encrypted = Utils.base64Decode(req.getClientSeed());
var client_seed = ByteBuffer.wrap(cipher.doFinal(client_seed_encrypted))
.getLong();
byte[] seed_bytes = ByteBuffer.wrap(new byte[8])
.putLong(Crypto.ENCRYPT_SEED ^ client_seed)
.array();
//Kind of a hack, but whatever
cipher.init(Cipher.ENCRYPT_MODE, req.getKeyId() == 3 ? Crypto.CUR_OS_ENCRYPT_KEY : Crypto.CUR_CN_ENCRYPT_KEY);
var seed_encrypted = cipher.doFinal(seed_bytes);
Signature privateSignature = Signature.getInstance("SHA256withRSA");
privateSignature.initSign(Crypto.CUR_SIGNING_KEY);
privateSignature.update(seed_bytes);
session.send(new PacketGetPlayerTokenRsp(session, Utils.base64Encode(seed_encrypted), Utils.base64Encode(privateSignature.sign())));
} catch (Exception ignore) {
// Only UA Patch users will have exception
byte[] clientBytes = Utils.base64Decode(req.getClientSeed());
byte[] seed = ByteHelper.longToBytes(Crypto.ENCRYPT_SEED);
Crypto.xor(clientBytes, seed);
@@ -111,29 +131,7 @@ public class HandlerGetPlayerTokenReq extends PacketHandler {
String base64str = Utils.base64Encode(clientBytes);
session.send(new PacketGetPlayerTokenRsp(session, base64str, "bm90aGluZyBoZXJl"));
return;
}
Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
cipher.init(Cipher.DECRYPT_MODE, Crypto.CUR_SIGNING_KEY);
var client_seed_encrypted = Utils.base64Decode(req.getClientSeed());
var client_seed = ByteBuffer.wrap(cipher.doFinal(client_seed_encrypted))
.getLong();
byte[] seed_bytes = ByteBuffer.wrap(new byte[8])
.putLong(Crypto.ENCRYPT_SEED ^ client_seed)
.array();
//Kind of a hack, but whatever
cipher.init(Cipher.ENCRYPT_MODE, req.getKeyId() == 3 ? Crypto.CUR_OS_ENCRYPT_KEY : Crypto.CUR_CN_ENCRYPT_KEY);
var seed_encrypted = cipher.doFinal(seed_bytes);
Signature privateSignature = Signature.getInstance("SHA256withRSA");
privateSignature.initSign(Crypto.CUR_SIGNING_KEY);
privateSignature.update(seed_bytes);
session.send(new PacketGetPlayerTokenRsp(session, Utils.base64Encode(seed_encrypted), Utils.base64Encode(privateSignature.sign())));
}
else {
// Send packet