RELEASE63-201405071257-197450526 handshake

[Gaby]

Hello RZ!

After trying for hours and hours, you guys are my last hope!

I'm updating Butterfly r105 to RELEASE63-201405071257-197450526 (PlusEmu R 2.1's version). The handshake goes well untill AFTER the secret key is generated. I can't explain it any differently than the emulator just stops doing anything and after a minute or so, the user will get disconnected.

I have checked literally everything: the generated key IS valid, the message gets send, the packets (incoming and outgoing) are all correct. I just don't know what I have done wrong.

The code I use is partly copied from PlusEmu. I know
var globalCrypto = new HabboCrypto();
is probably not the best way, any tips on that would also be greatly appreciated.

string CipherPublickey = Request.ReadString();
var globalCrypto = new HabboCrypto();
if (!globalCrypto.InitializeRC4ToSession(CipherPublickey))
{
    Session.SendNotif("There was an error logging you in, please try again!");
    return;
}
ServerMessage message = PacketHandelingManager.GetRecycledItem(OutputCode.SecretKeyComposer);
message.AddString(globalCrypto.PublicKey.ToString());
Session.SendMessage(message); 

Even telling me which packet would be handled after the secret key generating would help me out a bit, but I hope somebody knows what I did wrong or what I forgot.

[MentaL]

[K Camp]

what is the main problem and did you connect it together, so it connects to have it right handled?

[Gaby]

what is the main problem and did you connect it together, so it connects to have it right handled?

Everything should be connected yeah and the main problem is that the emulator doesn't go any further than generating the secret key and sending it, while all the handlers for the whole handshake are already coded and should be working.

[AKllX]

Mostly like you didn't handle the crypto correctly. I installed the plus crypto into this B105 and it works through it's not fully updated. Might help you.
https://mega.co.nz/#!MY9UlQhL!B5d5Rm...OdLLvXb8BJbFZY

Use the same banner as Plus.

[Gaby]

Mostly like you didn't handle the crypto correctly. I installed the plus crypto into this B105 and it works through it's not fully updated. Might help you.
https://mega.co.nz/#!MY9UlQhL!B5d5Rm...OdLLvXb8BJbFZY

Use the same banner as Plus.

That's amazing! I'm going to take a look at it tomorrow!

[Jonteh]

Where you call

var globalCrypto = new HabboCrypto(); 

could you not do

HabboCrypto crypto = new HabboCrypto(); 

instead of doing it as a var? You said your way might not be the best, so maybe that will be better.

This thread stuck out to me cause I'm also working on the new UI, except once I handle id 4000 it skips to GetUserInfo, I was wondering if this was because I don't have RC4 in my emulator? Sorry for not really going on your topic, but yeah.

[Gaby]

Where you call

var globalCrypto = new HabboCrypto(); 

could you not do

HabboCrypto crypto = new HabboCrypto(); 

instead of doing it as a var? You said your way might not be the best, so maybe that will be better.

This thread stuck out to me cause I'm also working on the new UI, except once I handle id 4000 it skips to GetUserInfo, I was wondering if this was because I don't have RC4 in my emulator? Sorry for not really going on your topic, but yeah.

Thanks for the advice on calling the HabboCrypto. (: And your problem should be because you don't have RC4 in your emulator then, aren't there any unhandled packets?

- - - Updated - - -

Mostly like you didn't handle the crypto correctly. I installed the plus crypto into this B105 and it works through it's not fully updated. Might help you.
https://mega.co.nz/#!MY9UlQhL!B5d5Rm...OdLLvXb8BJbFZY

Use the same banner as Plus.

This emu definitely helped me out! Now the handshake gets stuck after the client vars get handled. The packet for setting the machineid just doesn't get send. There's not much I can do wrong with the client vars packet I think, since it's not getting handled in Plus at all... Would there still be something wrong with the secret key then?

[Gaby]

I still got no luck in fixing it. After the clientvars packet(340), nothing gets received anymore. I've been busy with it all day, it's probably something small I'm doing wrong, but I can't get my finger on it.
There's nothing wrong with my SWFs by the way, I tried Plus on the same SWFs and everything's going fine there.

[Sledmore]

Could you show us your global crypto class or the InitializeRC4ToSession method?

Also, do the prime and generator keys match the keys in the banner/encryption file called by the client?

This thread stuck out to me cause I'm also working on the new UI, except once I handle id 4000 it skips to GetUserInfo, I was wondering if this was because I don't have RC4 in my emulator? Sorry for not really going on your topic, but yeah.

Naw, RC4 shouldn't be the cause of that. What revision are you working from? But just for a heads up, it should be in a similar order to;

GetClientVersionEvent (4000 always)
InitCryptoEvent -> Send the InitCryptoComposer
GenerateSecretKeyEvent -> Send the SecretKeyComposer
ClientVariablesEvent
UniqueIDEvent -> Send the SetUniqueIdComposer
SSO Ticket Event -> Manage auth, but within here you must send the AuthenticationOKComposer to actually successfully authenticate the user.

Just a thought, if it skips to GetUserInfo, then perhaps GetUserInfo is using the InitCryptoEvent packet.

[The General]

After sending the secretkey, does your emulator get another response from the client?

[Gaby]

Could you show us your global crypto class or the InitializeRC4ToSession method?

Also, do the prime and generator keys match the keys in the banner/encryption file called by the client?



Naw, RC4 shouldn't be the cause of that. What revision are you working from? But just for a heads up, it should be in a similar order to;

GetClientVersionEvent (4000 always)
InitCryptoEvent -> Send the InitCryptoComposer
GenerateSecretKeyEvent -> Send the SecretKeyComposer
ClientVariablesEvent
UniqueIDEvent -> Send the SetUniqueIdComposer
SSO Ticket Event -> Manage auth, but within here you must send the AuthenticationOKComposer to actually successfully authenticate the user.

Just a thought, if it skips to GetUserInfo, then perhaps GetUserInfo is using the InitCryptoEvent packet.

This is the HabboEncryption class:

using Butterfly.HabboHotel.GameClients;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;


namespace HabboEncryption
{
    public class HabboEncryption : DiffieHellman
    {
        private static BigInteger n = new BigInteger("86851DD364D5C5CECE3C883171CC6DDC5760779B992482BD1E20DD296888DF91B33B936A7B93F06D29E8870F703A216257DEC7C81DE0058FEA4CC5116F75E6EFC4E9113513E45357DC3FD43D4EFAB5963EF178B78BD61E81A14C603B24C8BCCE0A12230B320045498EDC29282FF0603BC7B7DAE8FC1B05B52B2F301A9DC783B7", 16);
        private static BigInteger e = new BigInteger(3);
        private static BigInteger d = new BigInteger("59AE13E243392E89DED305764BDD9E92E4EAFA67BB6DAC7E1415E8C645B0950BCCD26246FD0D4AF37145AF5FA026C0EC3A94853013EAAE5FF1888360F4F9449EE023762EC195DFF3F30CA0B08B8C947E3859877B5D7DCED5C8715C58B53740B84E11FBC71349A27C31745FCEFEEEA57CFF291099205E230E0C7C27E8E1C0512B", 16);


        private RSA RSA;


        public HabboEncryption()
            : base(new BigInteger("114670925920269957593299136150366957983142588366300079186349531", 10), new BigInteger("1589935137502239924254699078669119674538324391752663931735947", 10))
        {
            this.RSA = new RSA(n, e, d, 0, 0, 0, 0, 0);
        }


        public Boolean InitializeRC4ToSession(GameClient Session, string ctext)
        {
            try
            {
                string publickey = this.RSA.Decrypt(ctext);


                base.GenerateSharedKey(publickey.Replace(((char)0).ToString(), ""));


                RC4.Init(base.SharedKey.getBytes(), ref Session.RC4Client);
                Session.CryptoInitialized = true;


                return true;
            }
            catch
            {
                return false;
            }
        }
    }
} 

I've just checked the prime and generator keys and they match the ones in rs4.php

- - - Updated - - -

After sending the secretkey, does your emulator get another response from the client?

Yes, the clientvars get send and after that nothing happens anymore.

[James]

What about the n and e keys inside of your habbo.swf?

Did you open your habbo.swf via AS3Sorcerer and check those

[Gaby]

What about the n and e keys inside of your habbo.swf?

Did you open your habbo.swf via AS3Sorcerer and check those

I didn't do that. I assumed they would be OK, since I took them right from PlusEmu, which uses the same SWF revision. But to be sure, I'm going to check them!

[Daniel1811]

Hello,

I have the same problem

I have to replace my:


for this?

[Gaby]

What about the n and e keys inside of your habbo.swf?

Did you open your habbo.swf via AS3Sorcerer and check those

I've checked them now and they're correct..

- - - Updated - - -

Hello,

I have the same problem

I have to replace my:


for this?

You should definitely do that as far as I'm concerned.