在Python中,我们可以使用以下代码实现凯撒密码的字符替换: 代码语言:txt 复制 def caesar_cipher(text, shift): encrypted_text = "" for char in text: if char.isalpha(): ascii_offset = ord('A') if char.isupper() else ord('a') encrypted_char
在使用Caesar Cipher时,您可以通过使用Python 3编程语言实现自己的加密和解密函数,而无需依赖特定的云服务商产品。 下面是一个使用Python 3实现Caesar Cipher的示例代码: 代码语言:txt 复制 def caesar_cipher(text, key): result = "" for char in text: if char.isalpha(): if char.isupper(): result +=...
lower = string.ascii_lowercase upper = string.ascii_uppercasedefshift(c):ifcinlower:returnnext(cycle(lower[lower.index(c) + key %26:] + lower[:lower.index(c) + key %26]))elifcinupper:returnnext(cycle(upper[upper.index(c) + key %26:] + upper[:upper.index(c) + key %26]))retu...
if ch.isalpha(): stayInAlphabet = ord(ch) + shift if stayInAlphabet > ord('z'): stayInAlphabet -= 26 finalLetter = chr(stayInAlphabet) cipherText = "" cipherText += finalLetter print "Your ciphertext is: ", cipherText return cipherText caesar(plainText, shift)...
Caesar Cipher in Python Before we dive into defining the functions for the encryption and decryption process of Caesar Cipher in Python, we’ll first look at two important functions that we’ll use extensively during the process –chr()andord(). ...
t_plain ="HappyBirthday"t_key ="C"t = CaesarCipher()print("明文是:",t_plain) t_cypher = t.enc(t_plain, t_key)print("密文是:",t_cypher) t_result = t.dec(t_cypher, t_key)print("解密结果是:",t_result) 结果是: 明文是: HappyBirthday ...
print "Cipher: " + encrypt(text,s) 输出(Output) 您可以看到Caesar密码,即输出,如下图所示 - 说明(Explanation) 纯文本字符一次遍历一个。 对于给定纯文本中的每个字符,根据规则转换给定字符,具体取决于加密和解密文本的过程。 在执行这些步骤之后,将生成一个新字符串,称为密文。
Coding in Python def generate_key(n): letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" key = {} cnt = 0 for c in letters: key[c] = letters[(cnt + n) % len(letters)] cnt += 1 return key def encrypt(key, message): cipher = ""
Caesar Cipher: Python Encoding string=input("Enter a string\n")string=str.upper(string)forxinstring:if(x==' '):print(' ',end='')elif(ord(x)-ord('A')+3>=26):print(chr(ord(x)-26+3),end='')else:print(chr(ord(x)+3),end='') ...
简介:凯撒加密Caesar cipher 凯撒加密Caesar cipher 凯撒加密的由来 凯撒加密正是凯撒大帝发明的,是一种古典的加密 凯撒率军征服高卢,袭击日耳曼和不列颠,古罗马开启了走出意大利,征服全欧洲的征程 仅用8年时间征服高卢后,凯撒率军越过卢比孔河,驱赶政敌,成为了罗马的独裁者 ...