Shoutr tools

gen_dictionary.py

# Part of SPMS project at UTwente
# Generator of all possible WPA passphrases used by Shoutr

for i in range(10000):
    print "%04d%04d" % (i, i)

generate_ssid.py

import time
import struct


def calc_checksum(ssid):
    ssid = list(ssid)
    ssid[22] = chr(123)
    result = 15
    for char in ssid:
        result ^= ord(char)
    ssid[22] = chr(result)
    return "".join(ssid)

def generate_shoutid():
    # username padded with spaces
    username = "FAKE_USER"
    result = username + " " * (16 - len(username))
    # timestamp
    result += struct.pack(">I", int(time.time()))
    # content type - e.g.: 0x0008 is public text message
    result += "\x00\x08"
    # checksum, we still don't know the value so just put a placeholder
    result += "\x00"
    # type of shout - e.g.: 0x00 is file transfer
    result += "\x00"
    # calculate checksum
    result = calc_checksum(result)
    return result.encode('base64').strip()

if __name__ == "__main__":
    print "SSID: {}".format(generate_shoutid())