mirror of
https://github.com/barronwaffles/dwc_network_server_emulator.git
synced 2026-03-21 17:34:21 -05:00
f9c710af99
Contains enough code to allow Tetris DS to get to the post-login wifi menu. This is very rough, basic code. I expect it to change quite a bit from its current format once I start adding more features. It's nowhere near ready for public use yet.
65 lines
1.5 KiB
Python
65 lines
1.5 KiB
Python
from ctypes import c_uint
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import sys
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import base64
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import hashlib
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# GameSpy uses a slightly modified version of base64 which replaces +/= with []_
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def base64_encode(input):
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output = base64.b64encode(input).replace('+', '[').replace('/',']').replace('=','_')
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return output
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def base64_decode(input):
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output = base64.b64decode(input.replace('[', '+').replace('/',']').replace('_','='))
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return output
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# Parse my custom authtoken generated by the emulated nas.nintendowifi.net/ac
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def parse_authtoken(authtoken):
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messages = {}
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if authtoken[:3] == "NDS":
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authtoken = authtoken[3:]
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dec = base64.standard_b64decode(authtoken)
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for item in dec.split('|'):
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s = item.split('\\')
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messages[s[0]] = s[1]
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return messages
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def generate_response(challenge, ac_challenge, secretkey, authtoken):
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md5 = hashlib.md5()
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md5.update(ac_challenge)
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output = md5.hexdigest()
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output += ' ' * 0x30
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output += authtoken
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output += secretkey
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output += challenge
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output += md5.hexdigest()
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md5_2 = hashlib.md5()
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md5_2.update(output)
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return md5_2.hexdigest()
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# The proof is practically the same thing as the response, except it has the challenge and the secret key swapped.
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# Maybe combine the two functions later?
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def generate_proof(challenge, ac_challenge, secretkey, authtoken):
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md5 = hashlib.md5()
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md5.update(ac_challenge)
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output = md5.hexdigest()
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output += ' ' * 0x30
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output += authtoken
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output += challenge
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output += secretkey
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output += md5.hexdigest()
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md5_2 = hashlib.md5()
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md5_2.update(output)
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return md5_2.hexdigest()
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