def _start_puzzle(self, ssid):
"""
Handle the puzzle.
Read puzzle from the SSID encrypted with first PreImage, return Puzzle encrypted with first PreImage
"""
self.startPuzzleTime = time.time()
bitSize = ssid.getBitSize()
if (bitSize == 0): # No Puzzle required! Connect to network!
logging.info("Required Puzzle Size is 0! Not solving Puzzle!")
return self.request[1]
else:
recvhash = bytearray(ssid.getHash()) # received "Hash"
logging.debug("Received Hash: %s length: %s" %
(recvhash, len(recvhash)))
hash2 = bytearray(self.request[1]) # expected Answer
logging.debug("Expected hash: %s length: %s" % (hash2, len(hash2)))
puzzle = sofi_crypt.xorDecode(
recvhash, hash2
) # decode the received Hash with the expected Hash, this gives us the puzzle.
logging.debug("Puzzle received: %s with length: %s" %
(puzzle, len(puzzle)))
p = sofi_puzzle.mk_preimage_puzzle()
start = time.clock()
solution = p.solvePuzzleS(
puzzle, bitSize=bitSize) # Solve the received Puzzle
self.solution = solution
logging.debug("Puzzle solved in %.06f seconds." %
(time.clock() - start))
logging.debug("Calculated Puzzle Solution: %s" % solution)
solEnc = sofi_crypt.xorDecode(
solution, hash2
) # encode the solution with the expected Hash. This is the final ssid.
logging.debug("Final search Hash: %s" % solEnc)
self.endPuzzleTime = time.time()
return solEnc
def _start_puzzle(self,ssid):
"""
Handle the puzzle.
Read puzzle from the SSID encrypted with first PreImage, return Puzzle encrypted with first PreImage
"""
self.startPuzzleTime = time.time()
bitSize = ssid.getBitSize()
if(bitSize == 0): # No Puzzle required! Connect to network!
logging.info("Required Puzzle Size is 0! Not solving Puzzle!")
return self.request[1]
else:
recvhash = bytearray(ssid.getHash()) # received "Hash"
logging.debug("Received Hash: %s length: %s" %(recvhash,len(recvhash)))
hash2 = bytearray(self.request[1]) # expected Answer
logging.debug("Expected hash: %s length: %s" %(hash2,len(hash2)))
puzzle = sofi_crypt.xorDecode(recvhash, hash2) # decode the received Hash with the expected Hash, this gives us the puzzle.
logging.debug("Puzzle received: %s with length: %s" %(puzzle,len(puzzle)))
p = sofi_puzzle.mk_preimage_puzzle()
start = time.clock()
solution = p.solvePuzzleS(puzzle,bitSize=bitSize) # Solve the received Puzzle
self.solution = solution
logging.debug("Puzzle solved in %.06f seconds." %(time.clock()-start))
logging.debug("Calculated Puzzle Solution: %s" %solution)
solEnc = sofi_crypt.xorDecode(solution, hash2) # encode the solution with the expected Hash. This is the final ssid.
logging.debug("Final search Hash: %s" %solEnc)
self.endPuzzleTime = time.time()
return solEnc
def main():
logging.basicConfig(filename='sofi_listener.log', level=logging.DEBUG, datefmt='%d.%m %H:%M:%S')
logging.info('So-Fi started listening for requests!')
database = sofi_db.APdb()
puzzler = sofi_puzzle.mk_preimage_puzzle()
statelist = []
listener = Listener(database,statelist,puzzler)
listener.listen()
