bacon

培根密码（Bacon）——python解密

简介

培根密码，⼜名倍康尼密码（英语：Bacon’scipher）是由法兰西斯·培根发明的⼀种隐写术。

特点：

培根密码本质上是将⼆进制信息通过样式的区别，加在了正常书写之上。培根密码所包含的信息可以和⽤于承载其的⽂章完全⽆关。培根密

码实际上就是⼀种替换密码，根据所给表⼀⼀对应转换即可加密解密。它的特殊之处在于：可以通过不明显的特征来隐藏密码信息，⽐如

⼤⼩写、正斜体等，只要两个不同的属性，密码即可隐藏。

实现

培根密码实际上就是⼀种替换密码，⼀般有两种加密⽅式，所以相互对应就可以了。

代码

函数

letters1=[

'A','B','C','D','E','F','G',

'H','I','J','K','L','M','N',

'O','P','Q','R','S','T',

'U','V','W','X','Y','Z',

]

letters2=[

'a','b','c','d','e','f','g',

'h','i','j','k','l','m','n',

'o','p','q','r','s','t',

'u','v','w','x','y','z',

]

cipher1=[

"aaaaa","aaaab","aaaba","aaabb","aabaa","aabab","aabba",

"aabbb","abaaa","abaab","ababa","ababb","abbaa","abbab",

"abbba","abbbb","baaaa","baaab","baaba","baabb",

"babaa","babab","babba","babbb","bbaaa","bbaab",

]

cipher2=[

"AAAAA","AAAAB","AAABA","AAABB","AABAA","AABAB","AABBA",

"AABBB","ABAAA","ABAAA","ABAAB","ABABA","ABABB","ABBAA",

"ABBAB","ABBBA","ABBBB","BAAAA","BAAAB","BAABA",

"BAABB","BAABB","BABAA","BABAB","BABBA","BABBB",

]

defbacon1(string):

lists=[]

#分割，五个⼀组

foriinrange(0,len(string),5):

(string[i:i+5])

#print(lists)

#循环匹配，得到下标，对应下标即可

foriinrange(0,len(lists)):

forjinrange(0,26):

iflists[i]==cipher1[j]:

#print(j)

print(letters1[j],end="")

print("")

defbacon2(string):

lists=[]

#分割，五个⼀组

foriinrange(0,len(string),5):

(string[i:i+5])

#print(lists)

#循环匹配，得到下标，对应下标即可

foriinrange(0,len(lists)):

forjinrange(0,26):

iflists[i]==cipher2[j]:

#print(j)

print(letters2[j],end="")

print("")

主函数

importBacon

if__name__=="__main__":

1("aababababbaaaaaaabba")

2("AABABABABAAAAAAAABBA")

总结

这个我很少遇到，不太常见。