def isValidPuzzle(self,puzzle):
puzzle = "%s" %puzzle
crc1 = sofi_crypt.crc16(puzzle[0:18])
crc2, = struct.unpack('>H',puzzle[18:20])
if(crc1 == crc2):
return True
else:
return False
def isValidPuzzle(self, puzzle):
puzzle = "%s" % puzzle
crc1 = sofi_crypt.crc16(puzzle[0:18])
crc2, = struct.unpack('>H', puzzle[18:20])
if (crc1 == crc2):
return True
else:
return False
def createPuzzle(self,preimageSize=4):
self.count=0
if(preimageSize>20):
return None
try:
randgen = random.SystemRandom()
except:
randgen = random
b = bytearray()
for _i in xrange(preimageSize):
b.append(randgen.randint(0,255))
s = hashlib.sha1("%s" %b).digest()
z = bytearray(struct.pack('>18sH',s[0:18],sofi_crypt.crc16(s[0:18])))
return z
def createPuzzle(self, preimageSize=4):
self.count = 0
if (preimageSize > 20):
return None
try:
randgen = random.SystemRandom()
except:
randgen = random
b = bytearray()
for _i in xrange(preimageSize):
b.append(randgen.randint(0, 255))
s = hashlib.sha1("%s" % b).digest()
z = bytearray(struct.pack('>18sH', s[0:18], sofi_crypt.crc16(s[0:18])))
return z
