mirror of
https://github.com/TheAlgorithms/Python.git
synced 2024-11-27 15:01:08 +00:00
07e991d553
* ci(pre-commit): Add pep8-naming to `pre-commit` hooks (#7038) * refactor: Fix naming conventions (#7038) * Update arithmetic_analysis/lu_decomposition.py Co-authored-by: Christian Clauss <cclauss@me.com> * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * refactor(lu_decomposition): Replace `NDArray` with `ArrayLike` (#7038) * chore: Fix naming conventions in doctests (#7038) * fix: Temporarily disable project euler problem 104 (#7069) * chore: Fix naming conventions in doctests (#7038) Co-authored-by: Christian Clauss <cclauss@me.com> Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
58 lines
1.8 KiB
Python
58 lines
1.8 KiB
Python
import os
|
|
import random
|
|
import sys
|
|
|
|
from . import cryptomath_module as cryptoMath # noqa: N812
|
|
from . import rabin_miller as rabinMiller # noqa: N812
|
|
|
|
|
|
def main() -> None:
|
|
print("Making key files...")
|
|
make_key_files("rsa", 1024)
|
|
print("Key files generation successful.")
|
|
|
|
|
|
def generate_key(key_size: int) -> tuple[tuple[int, int], tuple[int, int]]:
|
|
print("Generating prime p...")
|
|
p = rabinMiller.generate_large_prime(key_size)
|
|
print("Generating prime q...")
|
|
q = rabinMiller.generate_large_prime(key_size)
|
|
n = p * q
|
|
|
|
print("Generating e that is relatively prime to (p - 1) * (q - 1)...")
|
|
while True:
|
|
e = random.randrange(2 ** (key_size - 1), 2 ** (key_size))
|
|
if cryptoMath.gcd(e, (p - 1) * (q - 1)) == 1:
|
|
break
|
|
|
|
print("Calculating d that is mod inverse of e...")
|
|
d = cryptoMath.find_mod_inverse(e, (p - 1) * (q - 1))
|
|
|
|
public_key = (n, e)
|
|
private_key = (n, d)
|
|
return (public_key, private_key)
|
|
|
|
|
|
def make_key_files(name: str, key_size: int) -> None:
|
|
if os.path.exists(f"{name}_pubkey.txt") or os.path.exists(f"{name}_privkey.txt"):
|
|
print("\nWARNING:")
|
|
print(
|
|
'"%s_pubkey.txt" or "%s_privkey.txt" already exists. \n'
|
|
"Use a different name or delete these files and re-run this program."
|
|
% (name, name)
|
|
)
|
|
sys.exit()
|
|
|
|
public_key, private_key = generate_key(key_size)
|
|
print(f"\nWriting public key to file {name}_pubkey.txt...")
|
|
with open(f"{name}_pubkey.txt", "w") as out_file:
|
|
out_file.write(f"{key_size},{public_key[0]},{public_key[1]}")
|
|
|
|
print(f"Writing private key to file {name}_privkey.txt...")
|
|
with open(f"{name}_privkey.txt", "w") as out_file:
|
|
out_file.write(f"{key_size},{private_key[0]},{private_key[1]}")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|