



import os
import random
import sys

from . import cryptomath_module as cryptoMath  # noqa: N812
from . import rabin_miller as rabinMiller  # noqa: N812


def 	UpperCAmelCase__      (      )     ->   List[Any]:






 '''simple docstring'''

 print("Making key files..."					)
 make_key_files("rsa" ,					10_24					)
 print("Key files generation successful."					)


def 	UpperCAmelCase__      (      UpperCAmelCase__ :int					)     ->   Dict:






 '''simple docstring'''

 print("Generating prime p..."					)
 a						=		rabinMiller.generate_large_prime(UpperCAmelCase__					)
 print("Generating prime q..."					)
 a						=		rabinMiller.generate_large_prime(UpperCAmelCase__					)
 a						=		p * q

 print("Generating e that is relatively prime to (p - 1) * (q - 1)..."					)
 while True:
  a						=		random.randrange(2 ** (key_size - 1) ,					2 ** (key_size)					)
  if cryptoMath.gcd(UpperCAmelCase__ ,					(p - 1) * (q - 1)					) == 1:
   break

 print("Calculating d that is mod inverse of e..."					)
 a						=		cryptoMath.find_mod_inverse(UpperCAmelCase__ ,					(p - 1) * (q - 1)					)

 a						=		(n, e)
 a						=		(n, d)
 return (public_key, private_key)


def 	UpperCAmelCase__      (      UpperCAmelCase__ :str ,					UpperCAmelCase__ :int					)     ->   str:






 '''simple docstring'''

 if os.path.exists(F"""{name}_pubkey.txt"""					) or os.path.exists(F"""{name}_privkey.txt"""					):
  print("\nWARNING:"					)
  print(
      F"""\"{name}_pubkey.txt\" or \"{name}_privkey.txt\" already exists. \n"""
      "Use a different name or delete these files and re-run this program."					)
  sys.exit()

 a		,  a						=		generate_key(UpperCAmelCase__					)
 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()






def 	UpperCAmelCase__      (      UpperCAmelCase__ :Any					):






 '''simple docstring'''

 if not head:
  return True
 # split the list to two parts
 a		,  a						=		head.next, head
 while fast and fast.next:
  a						=		fast.next.next
  a						=		slow.next
 a						=		slow.next
 a						=		None  # Don't forget here! But forget still works!
 # reverse the second part
 a						=		None
 while second:
  a						=		second.next
  a						=		node
  a						=		second
  a						=		nxt
 # compare two parts
 # second part has the same or one less node
 while node:
  if node.val != head.val:
   return False
  a						=		node.next
  a						=		head.next
 return True


def 	UpperCAmelCase__      (      UpperCAmelCase__ :str					):






 '''simple docstring'''

 if not head or not head.next:
  return True

 # 1. Get the midpoint (slow)
 a						=		a						=		a						=		head
 while fast and fast.next:
  a		,  a						=		fast.next.next, slow.next

 # 2. Push the second half into the stack
 a						=		[slow.val]
 while slow.next:
  a						=		slow.next
  stack.append(slow.val					)

 # 3. Comparison
 while stack:
  if stack.pop() != cur.val:
   return False
  a						=		cur.next

 return True




def 	UpperCAmelCase__      (      UpperCAmelCase__ :Any					):






 '''simple docstring'''

 if not head or not head.next:
  return True
 a						=		{}
 a						=		0
 while head:
  if head.val in d:
   d[head.val].append(UpperCAmelCase__					)
  else:
   a						=		[pos]
  a						=		head.next
  pos += 1
 a						=		pos - 1
 a						=		0
 for v in d.values():
  if len(UpperCAmelCase__					) % 2 != 0:
   middle += 1
  else:
   a						=		0
   for i in range(0 ,					len(UpperCAmelCase__					)					):
    if v[i] + v[len(UpperCAmelCase__					) - 1 - step] != checksum:
     return False
    step += 1
  if middle > 1:
   return False
 return True

