python小练习（003）：简单字符串加密解密（提高篇）

墨菲斯托

jerryxjr1220 发表于 2016-12-2 13:23
asc码的32就是空格

明白了，谢谢

yuzai1702

首先得想到空格的作用，要不就惨了

余欲渔

jerryxjr1220 发表于 2016-11-15 12:52
我的解答：利用英语文章中空格最多的特点，先用空格异或密文，然后统计转换后的字母哪个出现次数最多就是密 ...

这下看懂了，分成三个表分别异或空格，每个里面最大的链接起来就是密钥，这样就不用再去判断密码了，明白了明白了

jerryxjr1220

余欲渔 发表于 2017-2-17 14:32
这下看懂了，分成三个表分别异或空格，每个里面最大的链接起来就是密钥，这样就不用再去判断密码了，明白 ...

yay

学习

elbert

1. l = [91,33,6,22,85,41,28,6,30,22,25,78,28,19,78,57,26,6,29,89,78,16,29,15,3,1,11,1,85,95,90,85,95,83,60,0,83,1,6,22,85,12,22,18,7,29,27,7,29,18,78,7,29,11,83,34,1,1,17,78,18,25,28,22,20,10,10,85,11,11,28,29,7,16,10,93,85,38,22,85,25,18,6,78,4,28,26,27,85,41,28,17,66,83,20,0,23,85,6,22,85,25,18,6,78,52,26,10,93,85,92,83,61,11,83,2,15,0,85,7,29,85,26,27,16,78,17,16,9,26,27,0,26,27,9,83,2,7,7,29,78,52,26,10,93,85,93,83,61,11,83,22,28,22,20,26,22,17,78,22,3,11,1,12,26,27,28,0,20,85,26,27,16,28,22,85,7,0,91,78,61,26,26,27,28,0,20,85,11,11,28,29,7,6,78,7,29,15,7,85,6,22,85,10,26,17,0,84,1,78,30,20,5,22,91,78,71,85,34,26,19,11,83,28,26,0,16,2,21,85,25,18,6,78,26,27,78,27,28,3,95,85,15,29,17,78,7,29,7,0,85,2,26,19,11,83,18,7,5,16,29,83,25,7,20,29,26,83,1,1,83,16,24,22,7,23,28,27,11,93,85,91,83,33,6,22,85,2,26,18,6,7,85,29,27,28,0,22,6,78,7,29,28,28,0,9,27,85,26,27,16,78,23,20,28,24,27,11,0,6,66,83,20,0,23,85,26,27,16,78,23,20,28,24,27,11,0,6,78,16,20,0,83,27,11,5,16,28,83,16,22,7,28,0,20,0,7,0,29,78,26,1,64,83,67,78,52,26,10,83,6,11,29,1,78,57,26,6,29,85,26,27,16,78,49,20,30,7,28,29,7,85,89,83,1,1,83,1,11,31,25,78,22,3,11,1,12,1,29,16,78,18,23,1,6,1,78,7,29,11,83,25,7,20,29,26,83,6,1,83,1,6,18,1,78,22,3,11,1,12,1,29,16,78,30,28,9,27,1,78,17,16,2,26,16,24,22,85,12,22,22,15,6,6,11,83,26,8,83,29,7,0,85,26,22,6,26,26,24,1,29,12,64,83,77,78,57,26,6,29,85,6,26,24,29,22,25,8,83,2,15,0,85,0,28,1,78,7,29,11,83,25,7,20,29,26,72,85,6,22,85,25,18,6,78,28,27,2,10,85,15,83,2,7,7,27,11,0,6,78,7,26,78,7,29,11,83,25,7,20,29,26,93,85,87,83,33,6,22,85,1,29,16,78,4,29,1,83,28,29,83,1,6,22,85,26,1,0,11,83,25,7,20,29,26,95,85,25,27,26,78,20,28,24,22,6,78,31,28,9,27,1,78,7,26,78,22,3,11,1,12,1,29,16,66,83,2,15,0,85,9,28,28,0,20,85,26,28,85,13,28,24,11,83,28,0,7,26,78,7,29,11,83,2,1,1,25,10,93,85,95,67,85,44,6,1,78,18,25,26,27,26,27,20,29,78,7,29,11,83,2,1,1,25,10,83,2,15,0,85,3,18,17,11,83,1,6,1,26,27,20,29,78,27,28,3,95,85,26,27,16,78,4,26,28,31,17,78,23,28,10,29,82,26,83,7,11,16,26,9,29,28,20,22,85,6,26,24,78,4,29,11,29,85,6,22,85,13,18,24,11,93,85,95,66,85,43,5,16,0,83,28,0,83,29,7,0,85,1,4,27,78,31,20,0,23,85,15,29,17,78,18,24,1,29,18,78,27,28,29,83,26,25,29,85,30,22,26,30,31,16,66,83,29,11,83,2,15,0,85,0,28,1,78,18,22,13,22,5,26,22,17,64,83,68,92,83,55,27,7,85,26,28,85,15,31,25,78,4,29,1,83,23,11,31,28,11,5,16,10,83,29,7,30,85,15,29,17,78,18,22,13,22,5,26,22,17,78,27,28,3,95,85,6,22,85,9,18,3,11,83,1,6,22,85,28,26,18,6,7,85,26,28,85,12,22,22,1,30,16,78,16,29,7,31,17,28,22,27,78,28,19,78,52,26,10,93,85,95,64,85,58,27,16,23,83,20,28,22,85,28,22,23,1,1,27,79,83,33,6,26,6,78,26,6,78,29,26,26,83,20,78,3,29,23,0,28,13,18,25,78,17,28,28,7,29,78,1,16,29,6,25,26,26,27,9,83,19,28,28,24,78,27,0,3,18,27,78,3,20,29,0,28,1,29,85,1,1,85,30,31,20,0,95,85,26,27,28,29,83,7,11,17,28,28,7,29,78,16,26,3,22,6,78,21,7,1,30,85,41,28,17,64,66,65,78,32,26,78,7,29,11,83,34,1,1,17,78,17,16,13,18,24,11,83,29,27,30,20,0,83,20,0,23,85,2,26,3,11,23,85,6,22,7,11,83,26,0,83,16,15,1,1,6,83,20,3,28,27,9,83,0,29,93,85,38,22,85,25,18,6,78,21,0,2,31,85,1,21,85,27,29,19,15,26,25,7,29,18,78,31,26,24,22,85,15,29,17,78,21,20,7,7,29,8,6,25,0,22,6,29,93,85,47,29,17,78,4,16,78,27,20,24,22,85,29,22,16,0,83,29,7,0,85,9,31,26,28,10,89,78,7,29,11,83,18,2,28,7,23,83,26,8,83,1,6,22,85,1,29,25,23,83,38,1,29,85,1,21,85,26,27,16,78,53,20,26,27,16,28]
   
2. 
   
3. s1 ,s2 ,s3 = l[::3],l[1::3],l[2::3]
   
4. s = [s1,s2,s3]
   
5. 
   
6. 
   
7. def counter(s):                   #求出频率最高的频数
   
8.        
   
9.         alist = []
   
10.         for i in range(100):
    
11.                 alist.append(0)
    
12.                
    
13.         for j in s:
    
14.                 alist[int(j)]+=1
    
15.        
    
16.         return (alist)
    
17. 
    
18. 
    
19. def f_space(spacount,table):                #求出频率最高的数值
    
20.         for j in range(100):
    
21.                 if spacount == table[j]:
    
22.                         return (j)
    
23. 
    
24.                        
    
25. def Key(s):                                        #求出key
    
26.         key = []
    
27.         for list in s:
    
28.                 table = counter(list)
    
29.                 spacount = (max(table))                             
    
30.                 space = f_space(spacount,table)
    
31.                 key.append(chr( 32 ^ space ))                             
    
32.         return (key)
    
33. 
    
34.        
    
35. def deco(s1,key):                                #求出key后进行解码
    
36.         n1 = len(key)
    
37.         m1 = len(s1)
    
38.         k1 = m1//n1
    
39.         mw1 = []
    
40.         for j in range(k1):
    
41.                 for i in range(n1):
    
42.                         mw1.append(chr(int(s1[i+n1*j]) ^ ord(key[i])))
    
43.         print("".join(mw1))
    
44. 
    
45.        
    
46. keys = Key(s)
    
47. print("key:%s" % ''.join(keys))
    
48. deco (l,keys)

复制代码

xiaofa

1. from collections import Counter
   
2. mima=[91,33,6,22,85,41,28,6,30,22,25,78,28,19,78,57,26,6,29,89,78,16,29,15,3,1,11,1,85,95,90,85,95,83,60,0,83,1,6,22,85,12,22,18,7,29,27,7,29,18,78,7,29,11,83,34,1,1,17,78,18,25,28,22,20,10,10,85,11,11,28,29,7,16,10,93,85,38,22,85,25,18,6,78,4,28,26,27,85,41,28,17,66,83,20,0,23,85,6,22,85,25,18,6,78,52,26,10,93,85,92,83,61,11,83,2,15,0,85,7,29,85,26,27,16,78,17,16,9,26,27,0,26,27,9,83,2,7,7,29,78,52,26,10,93,85,93,83,61,11,83,22,28,22,20,26,22,17,78,22,3,11,1,12,26,27,28,0,20,85,26,27,16,28,22,85,7,0,91,78,61,26,26,27,28,0,20,85,11,11,28,29,7,6,78,7,29,15,7,85,6,22,85,10,26,17,0,84,1,78,30,20,5,22,91,78,71,85,34,26,19,11,83,28,26,0,16,2,21,85,25,18,6,78,26,27,78,27,28,3,95,85,15,29,17,78,7,29,7,0,85,2,26,19,11,83,18,7,5,16,29,83,25,7,20,29,26,83,1,1,83,16,24,22,7,23,28,27,11,93,85,91,83,33,6,22,85,2,26,18,6,7,85,29,27,28,0,22,6,78,7,29,28,28,0,9,27,85,26,27,16,78,23,20,28,24,27,11,0,6,66,83,20,0,23,85,26,27,16,78,23,20,28,24,27,11,0,6,78,16,20,0,83,27,11,5,16,28,83,16,22,7,28,0,20,0,7,0,29,78,26,1,64,83,67,78,52,26,10,83,6,11,29,1,78,57,26,6,29,85,26,27,16,78,49,20,30,7,28,29,7,85,89,83,1,1,83,1,11,31,25,78,22,3,11,1,12,1,29,16,78,18,23,1,6,1,78,7,29,11,83,25,7,20,29,26,83,6,1,83,1,6,18,1,78,22,3,11,1,12,1,29,16,78,30,28,9,27,1,78,17,16,2,26,16,24,22,85,12,22,22,15,6,6,11,83,26,8,83,29,7,0,85,26,22,6,26,26,24,1,29,12,64,83,77,78,57,26,6,29,85,6,26,24,29,22,25,8,83,2,15,0,85,0,28,1,78,7,29,11,83,25,7,20,29,26,72,85,6,22,85,25,18,6,78,28,27,2,10,85,15,83,2,7,7,27,11,0,6,78,7,26,78,7,29,11,83,25,7,20,29,26,93,85,87,83,33,6,22,85,1,29,16,78,4,29,1,83,28,29,83,1,6,22,85,26,1,0,11,83,25,7,20,29,26,95,85,25,27,26,78,20,28,24,22,6,78,31,28,9,27,1,78,7,26,78,22,3,11,1,12,1,29,16,66,83,2,15,0,85,9,28,28,0,20,85,26,28,85,13,28,24,11,83,28,0,7,26,78,7,29,11,83,2,1,1,25,10,93,85,95,67,85,44,6,1,78,18,25,26,27,26,27,20,29,78,7,29,11,83,2,1,1,25,10,83,2,15,0,85,3,18,17,11,83,1,6,1,26,27,20,29,78,27,28,3,95,85,26,27,16,78,4,26,28,31,17,78,23,28,10,29,82,26,83,7,11,16,26,9,29,28,20,22,85,6,26,24,78,4,29,11,29,85,6,22,85,13,18,24,11,93,85,95,66,85,43,5,16,0,83,28,0,83,29,7,0,85,1,4,27,78,31,20,0,23,85,15,29,17,78,18,24,1,29,18,78,27,28,29,83,26,25,29,85,30,22,26,30,31,16,66,83,29,11,83,2,15,0,85,0,28,1,78,18,22,13,22,5,26,22,17,64,83,68,92,83,55,27,7,85,26,28,85,15,31,25,78,4,29,1,83,23,11,31,28,11,5,16,10,83,29,7,30,85,15,29,17,78,18,22,13,22,5,26,22,17,78,27,28,3,95,85,6,22,85,9,18,3,11,83,1,6,22,85,28,26,18,6,7,85,26,28,85,12,22,22,1,30,16,78,16,29,7,31,17,28,22,27,78,28,19,78,52,26,10,93,85,95,64,85,58,27,16,23,83,20,28,22,85,28,22,23,1,1,27,79,83,33,6,26,6,78,26,6,78,29,26,26,83,20,78,3,29,23,0,28,13,18,25,78,17,28,28,7,29,78,1,16,29,6,25,26,26,27,9,83,19,28,28,24,78,27,0,3,18,27,78,3,20,29,0,28,1,29,85,1,1,85,30,31,20,0,95,85,26,27,28,29,83,7,11,17,28,28,7,29,78,16,26,3,22,6,78,21,7,1,30,85,41,28,17,64,66,65,78,32,26,78,7,29,11,83,34,1,1,17,78,17,16,13,18,24,11,83,29,27,30,20,0,83,20,0,23,85,2,26,3,11,23,85,6,22,7,11,83,26,0,83,16,15,1,1,6,83,20,3,28,27,9,83,0,29,93,85,38,22,85,25,18,6,78,21,0,2,31,85,1,21,85,27,29,19,15,26,25,7,29,18,78,31,26,24,22,85,15,29,17,78,21,20,7,7,29,8,6,25,0,22,6,29,93,85,47,29,17,78,4,16,78,27,20,24,22,85,29,22,16,0,83,29,7,0,85,9,31,26,28,10,89,78,7,29,11,83,18,2,28,7,23,83,26,8,83,1,6,22,85,1,29,25,23,83,38,1,29,85,1,21,85,26,27,16,78,53,20,26,27,16,28]
   
3. key_m=[[],[],[]]
   
4. 
   
5. for i in range(3):
   
6.     key_m[i]=mima[i::3]
   
7.     s=Counter(key_m[i])
   
8.     key_m[i]=sorted(s.items(),key=lambda x:x[1],reverse=True)[0][0]
   
9.     key_m[i]=chr(key_m[i]^ord(' '))
   
10. key=''.join(key_m)
    
11. print("密匙为：",key)
    
12. 
    
13. def decode_str(mima,key):
    
14.     l_mima=len(mima)
    
15.     string=''
    
16.     for i in range(l_mima):
    
17.         string=string+chr(ord(key[i%3])^mima[i])
    
18.     print("明文为：",string)
    
19. decode_str(mima,key)

复制代码

qaz123765

有没有可能三个列表里面不是前三多的加在一起最多

阿bang

1. data = [
   
2.     91,33,6,22,85,41,28,6,30,22,25,78,28,19,78,57,26,6,29,89,78,16,29,15,3,1,11,1,85,95,90,85,95,83,60,0,83,1,6,22,85,12,22,18,7,29,27,7,29,18,78,7,29,11,83,34,1,1,17,78,18,25,28,22,20,10,10,85,11,11,28,29,7,16,10,93,85,38,22,85,25,18,6,78,4,28,26,27,85,41,28,17,66,83,20,0,23,85,6,22,85,25,18,6,78,52,26,10,93,85,92,83,61,11,83,2,15,0,85,7,29,85,26,27,16,78,17,16,9,26,27,0,26,27,9,83,2,7,7,29,78,52,26,10,93,85,93,83,61,11,83,22,28,22,20,26,22,17,78,22,3,11,1,12,26,27,28,0,20,85,26,27,16,28,22,85,7,0,91,78,61,26,26,27,28,0,20,85,11,11,28,29,7,6,78,7,29,15,7,85,6,22,85,10,26,17,0,84,1,78,30,20,5,22,91,78,71,85,34,26,19,11,83,28,26,0,16,2,21,85,25,18,6,78,26,27,78,27,28,3,95,85,15,29,17,78,7,29,7,0,85,2,26,19,11,83,18,7,5,16,29,83,25,7,20,29,26,83,1,1,83,16,24,22,7,23,28,27,11,93,85,91,83,33,6,22,85,2,26,18,6,7,85,29,27,28,0,22,6,78,7,29,28,28,0,9,27,85,26,27,16,78,23,20,28,24,27,11,0,6,66,83,20,0,23,85,26,27,16,78,23,20,28,24,27,11,0,6,78,16,20,0,83,27,11,5,16,28,83,16,22,7,28,0,20,0,7,0,29,78,26,1,64,83,67,78,52,26,10,83,6,11,29,1,78,57,26,6,29,85,26,27,16,78,49,20,30,7,28,29,7,85,89,83,1,1,83,1,11,31,25,78,22,3,11,1,12,1,29,16,78,18,23,1,6,1,78,7,29,11,83,25,7,20,29,26,83,6,1,83,1,6,18,1,78,22,3,11,1,12,1,29,16,78,30,28,9,27,1,78,17,16,2,26,16,24,22,85,12,22,22,15,6,6,11,83,26,8,83,29,7,0,85,26,22,6,26,26,24,1,29,12,64,83,77,78,57,26,6,29,85,6,26,24,29,22,25,8,83,2,15,0,85,0,28,1,78,7,29,11,83,25,7,20,29,26,72,85,6,22,85,25,18,6,78,28,27,2,10,85,15,83,2,7,7,27,11,0,6,78,7,26,78,7,29,11,83,25,7,20,29,26,93,85,87,83,33,6,22,85,1,29,16,78,4,29,1,83,28,29,83,1,6,22,85,26,1,0,11,83,25,7,20,29,26,95,85,25,27,26,78,20,28,24,22,6,78,31,28,9,27,1,78,7,26,78,22,3,11,1,12,1,29,16,66,83,2,15,0,85,9,28,28,0,20,85,26,28,85,13,28,24,11,83,28,0,7,26,78,7,29,11,83,2,1,1,25,10,93,85,95,67,85,44,6,1,78,18,25,26,27,26,27,20,29,78,7,29,11,83,2,1,1,25,10,83,2,15,0,85,3,18,17,11,83,1,6,1,26,27,20,29,78,27,28,3,95,85,26,27,16,78,4,26,28,31,17,78,23,28,10,29,82,26,83,7,11,16,26,9,29,28,20,22,85,6,26,24,78,4,29,11,29,85,6,22,85,13,18,24,11,93,85,95,66,85,43,5,16,0,83,28,0,83,29,7,0,85,1,4,27,78,31,20,0,23,85,15,29,17,78,18,24,1,29,18,78,27,28,29,83,26,25,29,85,30,22,26,30,31,16,66,83,29,11,83,2,15,0,85,0,28,1,78,18,22,13,22,5,26,22,17,64,83,68,92,83,55,27,7,85,26,28,85,15,31,25,78,4,29,1,83,23,11,31,28,11,5,16,10,83,29,7,30,85,15,29,17,78,18,22,13,22,5,26,22,17,78,27,28,3,95,85,6,22,85,9,18,3,11,83,1,6,22,85,28,26,18,6,7,85,26,28,85,12,22,22,1,30,16,78,16,29,7,31,17,28,22,27,78,28,19,78,52,26,10,93,85,95,64,85,58,27,16,23,83,20,28,22,85,28,22,23,1,1,27,79,83,33,6,26,6,78,26,6,78,29,26,26,83,20,78,3,29,23,0,28,13,18,25,78,17,28,28,7,29,78,1,16,29,6,25,26,26,27,9,83,19,28,28,24,78,27,0,3,18,27,78,3,20,29,0,28,1,29,85,1,1,85,30,31,20,0,95,85,26,27,28,29,83,7,11,17,28,28,7,29,78,16,26,3,22,6,78,21,7,1,30,85,41,28,17,64,66,65,78,32,26,78,7,29,11,83,34,1,1,17,78,17,16,13,18,24,11,83,29,27,30,20,0,83,20,0,23,85,2,26,3,11,23,85,6,22,7,11,83,26,0,83,16,15,1,1,6,83,20,3,28,27,9,83,0,29,93,85,38,22,85,25,18,6,78,21,0,2,31,85,1,21,85,27,29,19,15,26,25,7,29,18,78,31,26,24,22,85,15,29,17,78,21,20,7,7,29,8,6,25,0,22,6,29,93,85,47,29,17,78,4,16,78,27,20,24,22,85,29,22,16,0,83,29,7,0,85,9,31,26,28,10,89,78,7,29,11,83,18,2,28,7,23,83,26,8,83,1,6,22,85,1,29,25,23,83,38,1,29,85,1,21,85,26,27,16,78,53,20,26,27,16,28
   
3. ]
   
4. 
   
5. 
   
6. key = (
   
7.           max([i ^ 32 for i in data[::3]], key=[j ^ 32 for j in data[::3]].count),
   
8.           max([i ^ 32 for i in data[1::3]], key=[j ^ 32 for j in data[1::3]].count),
   
9.           max([i ^ 32 for i in data[2::3]], key=[j ^ 32 for j in data[2::3]].count)
   
10.        )
    
11. 
    
12. decode_word = []
    
13. for index in range(len(data)):
    
14.     decode_word.append(chr(data[index] ^ key[index % 3]))
    
15. print(''.join(decode_word))

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参考了前面大神：空格最多的思路。

古楼吴狗嗨

1. with open("解密.txt") as file:
   
2.     f = file.read().split(",")
   
3.     list1 = []
   
4.     temp = []
   
5.     key = ''
   
6.     for i in range(3):
   
7.         list1=(f[i::3])
   
8.         for each in list1:
   
9.             temp.append(chr(int(each)^ord(' ')))
   
10.         key += max(temp, key=temp.count)
    
11.         temp.clear()
    
12.         list1.clear()
    
13.     print('key的值为：' + key)
    
14. 
    
15. def decode(string, key):
    
16.     str2 = ''
    
17.     keys = key*(len(f)//len(key)) + key[:len(f)%len(key)]
    
18.     for i in range(len(keys)):
    
19.         str2 += str(chr(int(f[i])^ord(keys[i])))
    
20.     return str2
    
21. 
    
22. print(decode(f,key))

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