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61f3119467
* f-string update rsa_cipher.py * f-string update rsa_key_generator.py * f-string update burrows_wheeler.py * f-string update non_recursive_segment_tree.py * f-string update red_black_tree.py * f-string update deque_doubly.py * f-string update climbing_stairs.py * f-string update iterating_through_submasks.py * f-string update knn_sklearn.py * f-string update 3n_plus_1.py * f-string update quadratic_equations_complex_numbers.py * f-string update nth_fibonacci_using_matrix_exponentiation.py * f-string update sherman_morrison.py * f-string update levenshtein_distance.py * fix lines that were too long
61 lines
1.8 KiB
Python
61 lines
1.8 KiB
Python
import os
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import random
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import sys
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from typing import Tuple
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from . import cryptomath_module as cryptoMath
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from . import rabin_miller as rabinMiller
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def main():
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print("Making key files...")
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makeKeyFiles("rsa", 1024)
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print("Key files generation successful.")
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def generateKey(keySize: int) -> Tuple[Tuple[int, int], Tuple[int, int]]:
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print("Generating prime p...")
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p = rabinMiller.generateLargePrime(keySize)
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print("Generating prime q...")
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q = rabinMiller.generateLargePrime(keySize)
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n = p * q
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print("Generating e that is relatively prime to (p - 1) * (q - 1)...")
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while True:
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e = random.randrange(2 ** (keySize - 1), 2 ** (keySize))
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if cryptoMath.gcd(e, (p - 1) * (q - 1)) == 1:
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break
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print("Calculating d that is mod inverse of e...")
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d = cryptoMath.findModInverse(e, (p - 1) * (q - 1))
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publicKey = (n, e)
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privateKey = (n, d)
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return (publicKey, privateKey)
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def makeKeyFiles(name: int, keySize: int) -> None:
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if os.path.exists("%s_pubkey.txt" % (name)) or os.path.exists(
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"%s_privkey.txt" % (name)
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):
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print("\nWARNING:")
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print(
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'"%s_pubkey.txt" or "%s_privkey.txt" already exists. \n'
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"Use a different name or delete these files and re-run this program."
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% (name, name)
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)
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sys.exit()
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publicKey, privateKey = generateKey(keySize)
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print("\nWriting public key to file %s_pubkey.txt..." % name)
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with open("%s_pubkey.txt" % name, "w") as out_file:
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out_file.write(f"{keySize},{publicKey[0]},{publicKey[1]}")
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print("Writing private key to file %s_privkey.txt..." % name)
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with open("%s_privkey.txt" % name, "w") as out_file:
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out_file.write(f"{keySize},{privateKey[0]},{privateKey[1]}")
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if __name__ == "__main__":
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main()
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