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主 题: Re:Re:Re:Re:密码(人气:2)
 木林森绿
31 楼: Re:Re:Re:Re:密码 03年07月22日21点00分


【drhorse在大作中谈到:】

>出密码题一定要有根有据,引经据典吗?
>历史上的密码想来都是出于军事或者政治的目的。
>看来我们现在是在温习古人的创造发明呢。
引自《HOLMES》啦~~~






The truth will out...

※来源: 【 推理之门 Tuili.Com 】.

 drhorse龙月风
32 楼: Re:Re:Re:Re:Re:密码 03年07月22日21点55分


【木林森在大作中谈到:】

>【drhorse在大作中谈到:】
>>
>>出密码题一定要有根有据,引经据典吗?
>>历史上的密码想来都是出于军事或者政治的目的。
>>看来我们现在是在温习古人的创造发明呢。
>引自《HOLMES》啦~~~

果然是的。
having once recognized however that the symbols stood for letters and.....
留一点给别人吧……






月黑杀人夜,风高放火天。

※来源: 【 推理之门 Tuili.Com 】.

 木林森绿
33 楼: Re:Re:Re:Re:Re:Re:... 03年07月22日22点00分


【drhorse在大作中谈到:】

>【木林森在大作中谈到:】
>>
>>【drhorse在大作中谈到:】
>>>
>>>出密码题一定要有根有据,引经据典吗?
>>>历史上的密码想来都是出于军事或者政治的目的。
>>>看来我们现在是在温习古人的创造发明呢。
>>引自《HOLMES》啦~~~

>果然是的。
>having once recognized however that the symbols stood for letters and.....
>留一点给别人吧……
很快~~~!!






The truth will out...

※来源: 【 推理之门 Tuili.Com 】.

 菩提菩提
34 楼: Re:Re:Re:Re:密码 03年07月24日17点18分


having once recognized however that the symbols stood for letters and
having applied the rules which guide us in all forms of secret writings
the solution was easy enough the first message submitted to me was so
short that it was impossible for me to do more than to say with some
confidence that the symbol of the stickman with both arms extended up
in the air stood for e as you are aware e is the most common letter in
the english alphabet and it predominates to so marked an extent that
even in a short sentence one would expect to find it most often out of
fifteen symbols in the first message four were the same so it was
reasonable to set this down as e it is true that in some cases the
figure was bearing a flag and in some cases not but it was probable
from the way in which the flags were distributed that they were used to
break the sentence up into words i accepted this as a hypothesis and
noted that e was represented by the stickman with both arms extended up
in the air








※来源: 【 推理之门 Tuili.Com 】.

 hoonCAH
35 楼: Re:密码(更新3) 03年07月25日00点35分


【木林森在大作中谈到:】
>2.U B H X P P R A I L A F X K A E L U F L U L D G A A N V C D U M A K R
>D U K L X C M A R H X P E U C C B U M K I L D I U I R U M V C H M A D M
>R F X M A L A O A D I X M F A U E D R F X M G U M F A K I L D I U I E D
>R D M U M G U I D I U X M E L U F L L A E X P C K M X I O A B P R A R U
>M F A L A F X P C K M A G A O U M D Y U M A I L D I U I F X P C K F X M
>A B O X M D M H X M A W P I I L A C D K H D M K R X M H K A D O E D I R
>X M E A L D G A A M K A K W H I P O M U M Y I L A K D M F U M Y M A M I
>X Y X X K E L A M I L A H L D G A R X X B I A M W A A M I L A D Y A M I
>R X B A G U C D M K U I L U M S I L D I U L D G A B P C B U C C A K M H
>V O X M U R A X B Y U G U M Y H X P R X M A I L U M Y P M P R P D C B X
>O H X P O M X I A W X X S I L O A A B X O I H U R X P O I O D U M D M K
>U B D M F H E A R L X P C K W A W D F S U M W D S A O R I O A A I B X O
>K U M M A O

这篇密文的部分解:
A: e B: C: D: a E: F: G: v H: I: t
J: K: d L: h M: n N: O: r P: Q: R:
S: T: U: i V: W: X: o Y: Z:
开头还蛮容易的,越往后越艰难了好像 :(
等周末抽空来解完它







Finally, we said good bye......

※来源: 【 推理之门 Tuili.Com 】.

 hoonCAH
36 楼: Re:密码(更新3) 03年07月25日09点08分


【木林森在大作中谈到:】
>2.U B H X P P R A I L A F X K A E L U F L U L D G A A N V C D U M A K R
>D U K L X C M A R H X P E U C C B U M K I L D I U I R U M V C H M A D M
>R F X M A L A O A D I X M F A U E D R F X M G U M F A K I L D I U I E D
>R D M U M G U I D I U X M E L U F L L A E X P C K M X I O A B P R A R U
>M F A L A F X P C K M A G A O U M D Y U M A I L D I U I F X P C K F X M
>A B O X M D M H X M A W P I I L A C D K H D M K R X M H K A D O E D I R
>X M E A L D G A A M K A K W H I P O M U M Y I L A K D M F U M Y M A M I
>X Y X X K E L A M I L A H L D G A R X X B I A M W A A M I L A D Y A M I
>R X B A G U C D M K U I L U M S I L D I U L D G A B P C B U C C A K M H
>V O X M U R A X B Y U G U M Y H X P R X M A I L U M Y P M P R P D C B X
>O H X P O M X I A W X X S I L O A A B X O I H U R X P O I O D U M D M K
>U B D M F H E A R L X P C K W A W D F S U M W D S A O R I O A A I B X O
>K U M M A O

"if you use the code which i have explained," said
Hol(n)es,"you will find that it si(n)ply (n)eans
'co(n)e here at once'. I was convinced that it was
an invitation which he would not refuse since
he could never i(n)agine that it could co(n)e
fro(n) anyone but the lady, and so, (n)y dear Watson
we have ended by turning the dancing(n)en to
good when they have so often been the agents
of evil. And I think that I have fulfilled (n)y
pro(n)ise of giving you so(n)ething unusual for
your notebook. Three forty is our train, and
i fancy we should be back in Baker Street for
dinner."
选自“跳舞的小人” ;)
林兄一个疑问,密文中的M好像覆盖了两个字母(n和m)吧?这可让我头痛了好一阵,呵呵。翻译中(n)即代表字母m(因为我初始确认M为n的)







Finally, we said good bye......

※来源: 【 推理之门 Tuili.Com 】.

 木林森绿
37 楼: Re:Re:密码(更新3) 03年07月25日21点09分


【hoon在大作中谈到:】

>【木林森在大作中谈到:】
>>2.U B H X P P R A I L A F X K A E L U F L U L D G A A N V C D U M A K R
>>D U K L X C M A R H X P E U C C B U M K I L D I U I R U M V C H M A D M
>>R F X M A L A O A D I X M F A U E D R F X M G U M F A K I L D I U I E D
>>R D M U M G U I D I U X M E L U F L L A E X P C K M X I O A B P R A R U
>>M F A L A F X P C K M A G A O U M D Y U M A I L D I U I F X P C K F X M
>>A B O X M D M H X M A W P I I L A C D K H D M K R X M H K A D O E D I R
>>X M E A L D G A A M K A K W H I P O M U M Y I L A K D M F U M Y M A M I
>>X Y X X K E L A M I L A H L D G A R X X B I A M W A A M I L A D Y A M I
>>R X B A G U C D M K U I L U M S I L D I U L D G A B P C B U C C A K M H
>>V O X M U R A X B Y U G U M Y H X P R X M A I L U M Y P M P R P D C B X
>>O H X P O M X I A W X X S I L O A A B X O I H U R X P O I O D U M D M K
>>U B D M F H E A R L X P C K W A W D F S U M W D S A O R I O A A I B X O
>>K U M M A O

>"if you use the code which i have explained," said
>Hol(n)es,"you will find that it si(n)ply (n)eans
>'co(n)e here at once'. I was convinced that it was
>an invitation which he would not refuse since
>he could never i(n)agine that it could co(n)e
>fro(n) anyone but the lady, and so, (n)y dear Watson
>we have ended by turning the dancing(n)en to
>good when they have so often been the agents
>of evil. And I think that I have fulfilled (n)y
>pro(n)ise of giving you so(n)ething unusual for
>your notebook. Three forty is our train, and
>i fancy we should be back in Baker Street for
>dinner."
>选自“跳舞的小人” ;)
>林兄一个疑问,密文中的M好像覆盖了两个字母(n和m)吧?这可让我头痛了好一阵,呵呵。翻译中(n)即代表字母m(因为我初始确认M为n的)


好厉害啊,HOON兄,这样都给你搞定了,不错,这是后来有些密码编译者为了使单字母替换密码更强大而设的陷阱,在我后来写的文章里有一些简介,但这难不到你啦~~~






The truth will out...

※来源: 【 推理之门 Tuili.Com 】.

 木林森绿
38 楼: Re:密码(没有更新) 03年07月26日22点25分


SORRY,两天没有更新了,不过写一篇维热纳尔密码的例题很难,现在才搞定,练习也有了,明天再放出,今天只对文章作了很小的修改,大家不要见怪哦~~~先在此感谢黑尘翼落~~~:e






The truth will out...

※来源: 【 推理之门 Tuili.Com 】.

 drhorse龙月风
39 楼: Re:Re:密码(没有更新) 03年07月27日09点50分


【木林森在大作中谈到:】

>SORRY,两天没有更新了,不过写一篇维热纳尔密码的例题很难,现在才搞定,练习也有了,明天再放出,今天只对文章作了很小的修改,大家不要见怪哦~~~先在此感谢黑尘翼落~~~:e

对于密码的解题方法是不是也说一下?比如hoon答的这道。






月黑杀人夜,风高放火天。

※来源: 【 推理之门 Tuili.Com 】.

 木林森绿
40 楼: Re:Re:Re:密码(没有更新) 03年07月28日14点56分


应drhorse的要求,对单字母替换密码练习中的第二篇简单讲解一下:
先对它进行频率分析(出现次数/百分比)
A:53/12.2 N: 1/0.2
B:13/3.0 O:17/3.9
C:15/3.4 P:17/3.9
D:31/7.1 Q: 0/0.0
E:10/2.3 R:19/4.4
F:14/3.2 S: 4/0.9
G: 9/2.1 T: 0/0.0
H:13/3.0 U:36/8.3
I:34/7.8 V: 3/0.7
J: 0/0.0 W: 7/1.6
K:20/4.6 X:35/8.0
L:26/6.0 Y: 8/1.8
M:51/11.7 Z: 0/0.0
发现频率分析不是非常符合标准,不妨先看看原文。不难发现ILA以三字母
单词出现了几次,那么,ILA应是THE和AND的其中一个。如果是AND,那么A
替换D,然而,A在原文中的频率是12.2,一般来说,D的频率只有4.3,相
差很远。所以,应有ILD=THE。
在我的提示中也说过,I L D I曾重复出现,也就是THAT了。
DMK也出现过几次吧,设它是AND,不过M的频率不大相符,暂且放下......






The truth will out...

※来源: 【 推理之门 Tuili.Com 】.

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