def calculate_hamming_distances_a(self):
with open(self.fuzzedfile.path, 'rb') as fd:
fuzzed = fd.read()
a_string = 'x' * len(fuzzed)
self.hd_bits = hamming.bitwise_hd(a_string, fuzzed)
self.hd_bytes = hamming.bytewise_hd(a_string, fuzzed)
def calculate_hamming_distances_a(self):
with open(self.fuzzedfile.path, 'rb') as fd:
fuzzed = fd.read()
a_string = 'x' * len(fuzzed)
self.hd_bits = hamming.bitwise_hd(a_string, fuzzed)
self.hd_bytes = hamming.bytewise_hd(a_string, fuzzed)
def calculate_hamming_distances_a(self):
with open(self.fuzzedfile.path, 'rb') as fd:
fuzzed = fd.read()
a_string = 'x' * len(fuzzed)
self.hd_bits = hamming.bitwise_hd(a_string, fuzzed)
logger.info("crasher=%s bitwise_hd=%d", self.signature, self.hd_bits)
self.hd_bytes = hamming.bytewise_hd(a_string, fuzzed)
logger.info("crasher=%s bytewise_hd=%d", self.signature, self.hd_bytes)
def bitwise_swap2(self, seed, fuzzed):
swapped = []
hd = 0
for (a, b) in itertools.izip(seed, fuzzed):
if a != b:
mask = self._mask()
newbyte = chr((ord(a) & mask) ^ (ord(b) & ~mask))
hd = hamming.bitwise_hd(a, newbyte)
swapped.append(newbyte)
else:
swapped.append(a)
return swapped, hd
def calculate_hamming_distances_a(self):
with open(self.fuzzedfile.path, 'rb') as fd:
fuzzed = fd.read()
a_string = 'x' * len(fuzzed)
self.hd_bits = hamming.bitwise_hd(a_string, fuzzed)
logger.info("crasher=%s bitwise_hd=%d", self.signature, self.hd_bits)
self.hd_bytes = hamming.bytewise_hd(a_string, fuzzed)
logger.info(
"crasher=%s bytewise_hd=%d", self.signature, self.hd_bytes)
def test_bitwise_hd(self):
# '0' = 0110000
# '1' = 0110001
# 'a' = 1100001
# 'c' = 1100011
self.assertEqual(bitwise_hd("0", "1"), 1)
self.assertEqual(bitwise_hd("0", "a"), 3)
self.assertEqual(bitwise_hd("0", "c"), 4)
self.assertEqual(bitwise_hd("1", "a"), 2)
self.assertEqual(bitwise_hd("1", "c"), 3)
self.assertEqual(bitwise_hd("a", "c"), 1)
[self.assertEqual(bitwise_hd(c, c), 0) for c in "01ac"]
def test_bitwise_hd(self):
# '0' = 0110000
# '1' = 0110001
# 'a' = 1100001
# 'c' = 1100011
self.assertEqual(bitwise_hd('0', '1'), 1)
self.assertEqual(bitwise_hd('0', 'a'), 3)
self.assertEqual(bitwise_hd('0', 'c'), 4)
self.assertEqual(bitwise_hd('1', 'a'), 2)
self.assertEqual(bitwise_hd('1', 'c'), 3)
self.assertEqual(bitwise_hd('a', 'c'), 1)
[self.assertEqual(bitwise_hd(c, c), 0) for c in "01ac"]
