brealid-python-lib

brealid python library

Installation

pip install brealid

Structure

• brealid
  • utils
    • benchmark
  • ctf
    • crypto
      • some useful functions
        • bytes_xor
      • GF2n

Usage

ctf

from brealid.ctf import *
from brealid.ctf.crypto import GF2n

print(bytes_xor(b'hello, world', b'\x06\nL\x01\x00^EW\t\x1e\r\x03'))
# b'no more flag'

num = GF2n(0x13) * GF2n(0x13)
print(num)
print(repr(num))
# 261
# GF2n<GaloisField(2^512), poly=0x125> (0x105)