key[c] = cletters.pop(random.randint(0,len(cletters) -1))returnkeydefencrypt(key, message): cipher =""forcinmessage:ifcinkey: cipher += key[c]else: cipher += creturncipher key = generate_key()print(key) message ="YOU ARE AWESOME"cipher = encrypt(key, message)print(cipher) First ...
=1:continuedecryptedText = affineCipher.decryptMessage(key, message)ifnotSILENT_MODE:print('Tried Key %s... (%s)'% (key, decryptedText[:40]))ifdetectEnglish.isEnglish(decryptedText):# Check with the user if the decrypted key has been found:print()print('Possible encryption hack:')print('...
def substitution_cipher(text, substitution_table): result = "" for char in text: if char.islower(): result += substitution_table[char] else: result += char return result 生成替换表 substitution_table = generate_substitution_table() print(f"替换表: {substitution_table}") 测试简单替换法 plai...
# Simple Substitution Cipher # https://www.nostarch.com/crackingcodes/ (BSD Licensed) import pyperclip, sys, random LETTERS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' def main(): myMessage = 'If a man is offered a fact which goes against his instincts, he will scrutinize it closely, and unless the ...
import pyperclip, affineCipher, detectEnglish, cryptomath SILENT_MODE = False def main(): # You might want to copy & paste this text from the source code at # https://www.nostarch.com/crackingcodes/. myMessage = """5QG9ol3La6QI93!xQxaia6faQL9QdaQG1!!axQARLa!!A ...
A Substitution Cipher has \[26! = 403291461126605635584000000 \] possible permutations / possible keys. \[26! = 403291461126605635584000000 \] \[2^88 = 309485009821345068724781056 \] Hence a 88 bit security. Encryption import random def generate_key(): ...
# Affine Cipher Hacker# https://www.nostarch.com/crackingcodes/ (BSD Licensed)import pyperclip, affineCipher, detectEnglish, cryptomathSILENT_MODE = Falsedef main():# You might want to copy & paste this text from the source code at# https://www.nostarch.com/crackingcodes/.myMessage = "...
(4)密文(Ciphertext) 加密后的信息。 古典加密算法主要分为: 单表替代密码:Caesar密码; 多表替代密码:Playfair密码、Hill密码、Vigenere密码; 转轮密码:著名的Enigma密码 替代算法用明文的字母由其他字母或数字或符号所代替。最著名的替代算法是恺撒密码。凯撒密码的原理很简单,其实就是单字母替换。
选择文件 -> 新文件,打开新文件编辑器窗口。在文件编辑器中输入以下代码,保存为vigenereCipher.py,确保pyperclip.py在同一个目录下。按F5运行程序。 vigenereCipher.py # Vigenere Cipher (Polyalphabetic Substitution Cipher) # https://www.nostarch.com/crackingcodes/ (BSD Licensed) ...
"""Simple Substitution Cipher, by Al Sweigart email@protected A simple substitution cipher has a one-to-one translation for each symbol in the plaintext and each symbol in the ciphertext. More info at: https://en.wikipedia.org/wiki/Substitution_cipher This code is available at https://nost...