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You aren't gonna be able to figure out the encryption just by looking at the bytes of the packet. You are gonna have to attach a debugger or using IDA and break down the code into something you can read.
Login packets usually work with some sort of md5 hash or whatever on the password and the username is in plain text with whatever data they add to the login packet structure.
So in order to crack the encryption use IDA or debugger break point on the client recv function and backtrack backwards using the buffer that is holding the data. More backwards you go you will eventually find the buffer pointer or buffer itself that isn't encrypted and once you do you can then import it to your program language.
My suggestion is take a smaller packet like a character packet or a chat packet something that has less data in it. Its alot of work but if you have any questions feel free to ask.
You aren't gonna be able to figure out the encryption just by looking at the bytes of the packet. You are gonna have to attach a debugger or using IDA and break down the code into something you can read.
Login packets usually work with some sort of md5 hash or whatever on the password and the username is in plain text with whatever data they add to the login packet structure.
So in order to crack the encryption use IDA or debugger break point on the client recv function and backtrack backwards using the buffer that is holding the data. More backwards you go you will eventually find the buffer pointer or buffer itself that isn't encrypted and once you do you can then import it to your program language.
My suggestion is take a smaller packet like a character packet or a chat packet something that has less data in it. Its alot of work but if you have any questions feel free to ask.