from Tools import Binary
with open('./ch8.txt') as file:
lineCounter = 0
for line in file:
lineCounter += 1
line = line.rstrip()
data = Binary(line, 16)
repeatedGroups = 0
step = 8 * 16 # 16 bytes
for i in range(0, len(data) - step, step):
group = data[i:i + step]
for ii in range(i + step, len(data) - step, step):
anotherGroup = data[ii:ii + step]
if group == anotherGroup:
repeatedGroups += 1
if repeatedGroups > 0:
print('Number: {}\nLine: {}\nRepeated:{}'.format(
lineCounter, data.toHex(), repeatedGroups))
from Tools import Binary
b = Binary('YELLOW SUBMARINE', 128)
padded = b.pkcs_7(21*8)
print('Before padding: {}'.format(b.toHex()))
print('After padding: {}'.format(padded.toHex()))