破解单字母密码
破解单字母密码详细操作教程
在本章中，您将学习有关单字母密码及其使用Python的黑客行为。
单字母密码
单字母密码使用固定替换来加密整个消息。此处显示了使用带有JSON对象的Python字典的单字母密码-
# Filename : example.py
# Copyright : 2020 By Lidihuo
# Author by : www.lidihuo.com
# Date : 2020-08-28
monoalpha_cipher = {
'a': 'm',
'b': 'n',
'c': 'b',
'd': 'v',
'e': 'c',
'f': 'x',
'g': 'z',
'h': 'a',
'i': 's',
'j': 'd',
'k': 'f',
'l': 'g',
'm': 'h',
'n': 'j',
'o': 'k',
'p': 'l',
'q': 'p',
'r': 'o',
's': 'i',
't': 'u',
'u': 'y',
'v': 't',
'w': 'r',
'x': 'e',
'y': 'w',
'z': 'q',
' ': ' ',
}
借助此词典，我们可以将带有关联字母的字母作为JSON对象中的值进行加密。下面的程序创建一个单字母程序作为类表示形式，其中包括所有加密和解密功能。
# Filename : example.py
# Copyright : 2020 By Lidihuo
# Author by : www.lidihuo.com
# Date : 2020-08-28
from string import letters, digits
from random import shuffle
def random_monoalpha_cipher(pool = None):
if pool is None:
pool = letters + digits
original_pool = list(pool)
shuffled_pool = list(pool)
shuffle(shuffled_pool)
return dict(zip(original_pool, shuffled_pool))
def inverse_monoalpha_cipher(monoalpha_cipher):
inverse_monoalpha = {}
for key, value in monoalpha_cipher.iteritems():
inverse_monoalpha[value] = key
return inverse_monoalpha
def encrypt_with_monoalpha(message, monoalpha_cipher):
encrypted_message = []
for letter in message:
encrypted_message.append(monoalpha_cipher.get(letter, letter))
return ''.join(encrypted_message)
def decrypt_with_monoalpha(encrypted_message, monoalpha_cipher):
return encrypt_with_monoalpha(
encrypted_message,
inverse_monoalpha_cipher(monoalpha_cipher)
)
稍后将调用此文件以实现单字母密码的加密和解密过程，如下所述-
# Filename : example.py
# Copyright : 2020 By Lidihuo
# Author by : www.lidihuo.com
# Date : 2020-08-28
import monoalphabeticCipher as mc
cipher = mc.random_monoalpha_cipher()
print(cipher)
encrypted = mc.encrypt_with_monoalpha('Hello all you hackers out there!', cipher)
decrypted = mc.decrypt_with_monoalpha('sXGGt SGG Nt0 HSrLXFC t0U UHXFX!', cipher)
print(encrypted)
print(decrypted)
输出
实现上面给出的代码时，您可以观察到以下输出-
因此，您可以破解具有指定键值对的单字母密码，从而将密文破解为实际的纯文本。
