Mask generation function: Difference between revisions

Revision as of 11:44, 11 January 2020

Revision as of 09:53, 23 July 2020

Line 66:

def i2osp(integer: int, size: int = 4) -> str:

return ''"".join([chr((integer >> (8 * i)) & 0xFF) for i in reversed(range(size))])

def mgf1(input_str: str, length: int, hash=hashlib.sha1) -> str:

"""Mask generation function."""

counter = 0

output = ''""

while (len(output) < length):

C = i2osp(counter, 4)

output += hash(input_str + C).digest()