"""simple docstring"""






import os
import sys

from . import rsa_key_generator as rkg

lowerCAmelCase__  :  int											=     128
lowerCAmelCase__  :  Tuple											=     256



def   a_						( lowerCamelCase ,      lowerCamelCase = DEFAULT_BLOCK_SIZE	):
				UpperCAmelCase__					=							message.encode('ascii'	)

				UpperCAmelCase__					=							[]
				for block_start in range(0 ,      len(lowerCamelCase	) ,      lowerCamelCase	):
								UpperCAmelCase__					=							0
								for i in range(lowerCamelCase ,      min(block_start + block_size ,      len(lowerCamelCase	)	)	):
												block_int += message_bytes[i] * (BYTE_SIZE ** (i % block_size))
								block_ints.append(lowerCamelCase	)
				return block_ints



def   a_						( lowerCamelCase ,      lowerCamelCase ,      lowerCamelCase = DEFAULT_BLOCK_SIZE	):
				UpperCAmelCase__					=							[]
				for block_int in block_ints:
								UpperCAmelCase__					=							[]
								for i in range(block_size - 1 ,      -1 ,      -1	):
												if len(lowerCamelCase	) + i < message_length:
																UpperCAmelCase__					=							block_int // (BYTE_SIZE**i)
																UpperCAmelCase__					=							block_int % (BYTE_SIZE**i)
																block_message.insert(0 ,      chr(lowerCamelCase	)	)
								message.extend(lowerCamelCase	)
				return "".join(lowerCamelCase	)



def   a_						( lowerCamelCase ,      lowerCamelCase ,      lowerCamelCase = DEFAULT_BLOCK_SIZE	):
				UpperCAmelCase__					=							[]
				UpperCAmelCase__				,     UpperCAmelCase__					=							key

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



def   a_						( lowerCamelCase ,      lowerCamelCase ,      lowerCamelCase ,      lowerCamelCase = DEFAULT_BLOCK_SIZE ,      ):
				UpperCAmelCase__					=							[]
				UpperCAmelCase__				,     UpperCAmelCase__					=							key
				for block in encrypted_blocks:
								decrypted_blocks.append(pow(lowerCamelCase ,      lowerCamelCase ,      lowerCamelCase	)	)
				return get_text_from_blocks(lowerCamelCase ,      lowerCamelCase ,      lowerCamelCase	)



def   a_						( lowerCamelCase	):
				with open(lowerCamelCase	) as fo:
								UpperCAmelCase__					=							fo.read()
				UpperCAmelCase__				,     UpperCAmelCase__				,     UpperCAmelCase__					=							content.split(','	)
				return (int(lowerCamelCase	), int(lowerCamelCase	), int(lowerCamelCase	))



def   a_						( lowerCamelCase ,      lowerCamelCase ,      lowerCamelCase ,      lowerCamelCase = DEFAULT_BLOCK_SIZE ,      ):
				UpperCAmelCase__				,     UpperCAmelCase__				,     UpperCAmelCase__					=							read_key_file(lowerCamelCase	)
				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 ,      lowerCamelCase	)	)

				UpperCAmelCase__					=							[str(lowerCamelCase	) for i in encrypt_message(lowerCamelCase ,      (n, e) ,      lowerCamelCase	)]

				UpperCAmelCase__					=							','.join(lowerCamelCase	)
				UpperCAmelCase__					=							f'''{len(lowerCamelCase	)}_{block_size}_{encrypted_content}'''
				with open(lowerCamelCase ,      'w'	) as fo:
								fo.write(lowerCamelCase	)
				return encrypted_content



def   a_						( lowerCamelCase ,      lowerCamelCase	):
				UpperCAmelCase__				,     UpperCAmelCase__				,     UpperCAmelCase__					=							read_key_file(lowerCamelCase	)
				with open(lowerCamelCase	) as fo:
								UpperCAmelCase__					=							fo.read()
				UpperCAmelCase__				,     UpperCAmelCase__				,     UpperCAmelCase__					=							content.split('_'	)
				UpperCAmelCase__					=							int(lowerCamelCase	)
				UpperCAmelCase__					=							int(lowerCamelCase	)

				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 ,      lowerCamelCase	)	)

				UpperCAmelCase__					=							[]
				for block in encrypted_message.split(','	):
								encrypted_blocks.append(int(lowerCamelCase	)	)

				return decrypt_message(lowerCamelCase ,      lowerCamelCase ,      (n, d) ,      lowerCamelCase	)



def   a_						( ):
				UpperCAmelCase__					=							'encrypted_file.txt'
				UpperCAmelCase__					=							input(r'Encrypt\Decrypt [e\d]: '	)

				if response.lower().startswith('e'	):
								UpperCAmelCase__					=							'encrypt'
				elif response.lower().startswith('d'	):
								UpperCAmelCase__					=							'decrypt'

				if mode == "encrypt":
								if not os.path.exists('rsa_pubkey.txt'	):
												rkg.make_key_files('rsa' ,      1_0_2_4	)

								UpperCAmelCase__					=							input('\nEnter message: '	)
								UpperCAmelCase__					=							'rsa_pubkey.txt'
								print(f'''Encrypting and writing to {filename}...'''	)
								UpperCAmelCase__					=							encrypt_and_write_to_file(lowerCamelCase ,      lowerCamelCase ,      lowerCamelCase	)

								print('\nEncrypted text:'	)
								print(lowerCamelCase	)

				elif mode == "decrypt":
								UpperCAmelCase__					=							'rsa_privkey.txt'
								print(f'''Reading from {filename} and decrypting...'''	)
								UpperCAmelCase__					=							read_from_file_and_decrypt(lowerCamelCase ,      lowerCamelCase	)
								print('writing decryption to rsa_decryption.txt...'	)
								with open('rsa_decryption.txt' ,      'w'	) as dec:
												dec.write(lowerCamelCase	)

								print('\nDecryption:'	)
								print(lowerCamelCase	)


if __name__ == "__main__":
						main()




"""simple docstring"""






from __future__ import annotations
class     snake_case	:




					"""simple docstring"""

					def __init__(    self       :     Tuple   ,lowerCamelCase__       :     int      ):
									UpperCAmelCase__					=							vertices
									UpperCAmelCase__					=							[[0] * vertices for _ in range(lowerCamelCase__      )]







					def 		__lowerCAmelCase						(    self       :     Dict   ,lowerCamelCase__       :     list[int]      ):
									print('Vertex \t Distance from Source'      )
									for vertex in range(self.vertices      ):
													print(lowerCamelCase__   ,'\t\t'   ,distances_from_source[vertex]      )







					def 		__lowerCAmelCase						(    self       :     List[Any]   ,lowerCamelCase__       :     list[int]   ,lowerCamelCase__       :     list[bool]      ):
									UpperCAmelCase__					=							1e7
									UpperCAmelCase__					=							0

									# Search not nearest vertex not in the shortest path tree
									for vertex in range(self.vertices      ):
													if distances_from_source[vertex] < minimum and visited[vertex] is False:
																	UpperCAmelCase__					=							distances_from_source[vertex]
																	UpperCAmelCase__					=							vertex
									return min_index







					def 		__lowerCAmelCase						(    self       :     List[Any]   ,lowerCamelCase__       :     int      ):
									UpperCAmelCase__					=							[int(1e7      )] * self.vertices  # distances from the source
									UpperCAmelCase__					=							0
									UpperCAmelCase__					=							[False] * self.vertices

									for _ in range(self.vertices      ):
													UpperCAmelCase__					=							self.minimum_distance(lowerCamelCase__   ,lowerCamelCase__      )
													UpperCAmelCase__					=							True

													# Update dist value of the adjacent vertices
													# of the picked vertex only if the current
													# distance is greater than new distance and
													# the vertex in not in the shortest path tree
													for v in range(self.vertices      ):
																	if (
																	    self.graph[u][v] > 0
																	    and visited[v] is False
																	    and distances[v] > distances[u] + self.graph[u][v]
																	):
																					UpperCAmelCase__					=							distances[u] + self.graph[u][v]

									self.print_solution(lowerCamelCase__      )


if __name__ == "__main__":
						lowerCAmelCase__  :  List[str]											=     Graph(9)
						lowerCAmelCase__  :  Tuple											=     [
						    [0, 4, 0, 0, 0, 0, 0, 8, 0],
						    [4, 0, 8, 0, 0, 0, 0, 11, 0],
						    [0, 8, 0, 7, 0, 4, 0, 0, 2],
						    [0, 0, 7, 0, 9, 14, 0, 0, 0],
						    [0, 0, 0, 9, 0, 10, 0, 0, 0],
						    [0, 0, 4, 14, 10, 0, 2, 0, 0],
						    [0, 0, 0, 0, 0, 2, 0, 1, 6],
						    [8, 11, 0, 0, 0, 0, 1, 0, 7],
						    [0, 0, 2, 0, 0, 0, 6, 7, 0],
						]
						graph.dijkstra(0)



