





import os
import sys

from . import rsa_key_generator as rkg

__lowerCAmelCase			:Union[str, Any]	 =     1_28
__lowerCAmelCase			:Union[str, Any]	 =     2_56







def  A					(				UpperCAmelCase	,	UpperCAmelCase = DEFAULT_BLOCK_SIZE					):
					_snake_case							:       Dict												= message.encode("ascii"					)

					_snake_case							:       Dict												= []
					for block_start in range(0	,	len(lowercase__					)	,	lowercase__					):
										_snake_case							:       List[Any]												= 0
										for i in range(lowercase__	,	min(block_start + block_size	,	len(lowercase__					)					)					):
															block_int += message_bytes[i] * (BYTE_SIZE ** (i % block_size))
										block_ints.append(lowercase__					)
					return block_ints







def  A					(				UpperCAmelCase	,	UpperCAmelCase	,	UpperCAmelCase = DEFAULT_BLOCK_SIZE					):
					_snake_case							:       Optional[int]												= []
					for block_int in block_ints:
										_snake_case							:       List[str]												= []
										for i in range(block_size - 1	,	-1	,	-1					):
															if len(lowercase__					) + i < message_length:
																				_snake_case							:       Optional[Any]												= block_int // (BYTE_SIZE**i)
																				_snake_case							:       int												= block_int % (BYTE_SIZE**i)
																				block_message.insert(0	,	chr(lowercase__					)					)
										message.extend(lowercase__					)
					return "".join(lowercase__					)







def  A					(				UpperCAmelCase	,	UpperCAmelCase	,	UpperCAmelCase = DEFAULT_BLOCK_SIZE					):
					_snake_case							:       List[Any]												= []
					_snake_case							,			_snake_case							:       Union[str, Any]												= key

					for block in get_blocks_from_text(lowercase__	,	lowercase__					):
										encrypted_blocks.append(pow(lowercase__	,	lowercase__	,	lowercase__					)					)
					return encrypted_blocks







def  A					(				UpperCAmelCase	,	UpperCAmelCase	,	UpperCAmelCase	,	UpperCAmelCase = DEFAULT_BLOCK_SIZE	,	):
					_snake_case							:       List[str]												= []
					_snake_case							,			_snake_case							:       List[Any]												= key
					for block in encrypted_blocks:
										decrypted_blocks.append(pow(lowercase__	,	lowercase__	,	lowercase__					)					)
					return get_text_from_blocks(lowercase__	,	lowercase__	,	lowercase__					)







def  A					(				UpperCAmelCase					):
					with open(lowercase__					) as fo:
										_snake_case							:       Optional[Any]												= fo.read()
					_snake_case							,			_snake_case							,			_snake_case							:       Union[str, Any]												= content.split(","					)
					return (int(lowercase__					), int(lowercase__					), int(lowercase__					))







def  A					(				UpperCAmelCase	,	UpperCAmelCase	,	UpperCAmelCase	,	UpperCAmelCase = DEFAULT_BLOCK_SIZE	,	):
					_snake_case							,			_snake_case							,			_snake_case							:       Tuple												= read_key_file(lowercase__					)
					if key_size < block_size * 8:
										sys.exit(
										    "ERROR: Block size is {} bits and key size is {} bits. The RSA cipher "
										    "requires the block size to be equal to or greater than the key size. "
										    "Either decrease the block size or use different keys.".format(
										        block_size * 8	,	lowercase__					)					)

					_snake_case							:       Tuple												= [str(lowercase__					) for i in encrypt_message(lowercase__	,	(n, e)	,	lowercase__					)]

					_snake_case							:       Optional[int]												= ",".join(lowercase__					)
					_snake_case							:       Tuple												= F"""{len(lowercase__					)}_{block_size}_{encrypted_content}"""
					with open(lowercase__	,	"w"					) as fo:
										fo.write(lowercase__					)
					return encrypted_content







def  A					(				UpperCAmelCase	,	UpperCAmelCase					):
					_snake_case							,			_snake_case							,			_snake_case							:       List[Any]												= read_key_file(lowercase__					)
					with open(lowercase__					) as fo:
										_snake_case							:       Any												= fo.read()
					_snake_case							,			_snake_case							,			_snake_case							:       int												= content.split("_"					)
					_snake_case							:       Optional[int]												= int(lowercase__					)
					_snake_case							:       List[str]												= int(lowercase__					)

					if key_size < block_size * 8:
										sys.exit(
										    "ERROR: Block size is {} bits and key size is {} bits. The RSA cipher "
										    "requires the block size to be equal to or greater than the key size. "
										    "Did you specify the correct key file and encrypted file?".format(
										        block_size * 8	,	lowercase__					)					)

					_snake_case							:       Dict												= []
					for block in encrypted_message.split(","					):
										encrypted_blocks.append(int(lowercase__					)					)

					return decrypt_message(lowercase__	,	lowercase__	,	(n, d)	,	lowercase__					)







def  A					(				):
					_snake_case							:       Optional[int]												= "encrypted_file.txt"
					_snake_case							:       str												= input(R"Encrypt\Decrypt [e\d]: "					)

					if response.lower().startswith("e"					):
										_snake_case							:       Optional[Any]												= "encrypt"
					elif response.lower().startswith("d"					):
										_snake_case							:       List[str]												= "decrypt"

					if mode == "encrypt":
										if not os.path.exists("rsa_pubkey.txt"					):
															rkg.make_key_files("rsa"	,	1_024					)

										_snake_case							:       List[str]												= input("\nEnter message: "					)
										_snake_case							:       int												= "rsa_pubkey.txt"
										print(F"""Encrypting and writing to {filename}..."""					)
										_snake_case							:       Optional[Any]												= encrypt_and_write_to_file(lowercase__	,	lowercase__	,	lowercase__					)

										print("\nEncrypted text:"					)
										print(lowercase__					)

					elif mode == "decrypt":
										_snake_case							:       Optional[Any]												= "rsa_privkey.txt"
										print(F"""Reading from {filename} and decrypting..."""					)
										_snake_case							:       Dict												= read_from_file_and_decrypt(lowercase__	,	lowercase__					)
										print("writing decryption to rsa_decryption.txt..."					)
										with open("rsa_decryption.txt"	,	"w"					) as dec:
															dec.write(lowercase__					)

										print("\nDecryption:"					)
										print(lowercase__					)


if __name__ == "__main__":
							main()




from __future__ import annotations






def 			UpperCAmelCase__     (     lowercase__ )			->   list[int]:
						if not list_of_ints:
												return []

						if min(lowercase__ ) < 0:
												raise ValueError("""All numbers must be positive""" )

						__lowercase											=					max(len(bin(lowercase__ )[2:] ) for x in list_of_ints )
						return _msd_radix_sort(lowercase__    ,							lowercase__ )






def 			UpperCAmelCase__     (     lowercase__    ,							lowercase__ )			->   list[int]:
						if bit_position == 0 or len(lowercase__ ) in [0, 1]:
												return list_of_ints

						__lowercase											=					[]
						__lowercase											=					[]
						# Split numbers based on bit at bit_position from the right
						for number in list_of_ints:
												if (number >> (bit_position - 1)) & 1:
																		# number has a one at bit bit_position
																		ones.append(lowercase__ )
												else:
																		# number has a zero at bit bit_position
																		zeros.append(lowercase__ )

    # recursively split both lists further
						__lowercase											=					_msd_radix_sort(lowercase__    ,							bit_position - 1 )
						__lowercase											=					_msd_radix_sort(lowercase__    ,							bit_position - 1 )

						# recombine lists
						__lowercase											=					zeros
						res.extend(lowercase__ )

						return res






def 			UpperCAmelCase__     (     lowercase__ )			->   List[Any]:
						__lowercase											=					len(lowercase__ )
						if not list_of_ints or length == 1:
												return

						if min(lowercase__ ) < 0:
												raise ValueError("""All numbers must be positive""" )

						__lowercase											=					max(len(bin(lowercase__ )[2:] ) for x in list_of_ints )
						_msd_radix_sort_inplace(lowercase__    ,							lowercase__    ,							0    ,							lowercase__ )






def 			UpperCAmelCase__     (     lowercase__    ,							lowercase__    ,							lowercase__    ,							lowercase__ )			->   Optional[Any]:
						if bit_position == 0 or end_index - begin_index <= 1:
												return

						bit_position -= 1

						__lowercase											=					begin_index
						__lowercase											=					end_index - 1
						while i <= j:
												__lowercase											=					False
												if not (list_of_ints[i] >> bit_position) & 1:
																		# found zero at the beginning
																		i += 1
																		__lowercase											=					True
												if (list_of_ints[j] >> bit_position) & 1:
																		# found one at the end
																		j -= 1
																		__lowercase											=					True

												if changed:
																		continue

												__lowercase						,      __lowercase											=					list_of_ints[j], list_of_ints[i]
												j -= 1
												if j != i:
																		i += 1

						_msd_radix_sort_inplace(lowercase__    ,							lowercase__    ,							lowercase__    ,							lowercase__ )
						_msd_radix_sort_inplace(lowercase__    ,							lowercase__    ,							lowercase__    ,							lowercase__ )


if __name__ == "__main__":
			import doctest

			doctest.testmod()





