轮转机加密
打开附件是
1 <ZWAXJGDLUBVIQHKYPNTCRMOSFE <
2 <KPBELNACZDTRXMJQOYHGVSFUWI <
3 <BDMAIZVRNSJUWFHTEQGYXPLOCK <
4 <RPLNDVHGFCUKTEBSXQYIZMJWAO <
5 <IHFRLABEUOTSGJVDKCPMNZQWXY <
6 <AMKGHIWPNYCJBFZDRUSLOQXVET <
7 <GWTHSPYBXIZULVKMRAFDCEONJQ <
8 <NOZUTWDCVRJLXKISEFAPMYGHBQ <
9 <XPLTDSRFHENYVUBMCQWAOIKZGJ <
10: <UDNAJFBOWTGVRSCZQKELMXYIHP <
11 ： <MNBVCXZQWERTPOIUYALSKDJFHG <
12 ： <LVNCMXZPQOWEIURYTASBKJDFHG <
13 ： <JZQAWSXCDERFVBGTH
The key is: 2,3,7,5,13,12,9,1,8,10,4,11,6. The
cipher text is: NFQKSEVOQOFNP
. There is a hint in the question is rotary encryption, also known as Jefferson disk
encryption. The corresponding order of the key is arranged in the first few rows. For example: the key is 2,3,7,5,13,12,9,1,8,10,4,11,6 is the first row of the original second row. The second and third acts, third, seventh line behavior so:
after the conversion is
<KPBELNACZDTRXMJQOYHGVSFUWI <
<BDMAIZVRNSJUWFHTEQGYXPLOCK <
<GWTHSPYBXIZULVKMRAFDCEONJQ <
<IHFRLABEUOTSGJVDKCPMNZQWXY <
<JZQAWSXCDERFVBGTYHNUMKILOP <
<LVNCMXZPQOWEIURYTASBKJDFHG <
<XPLTDSRFHENYVUBMCQWAOIKZGJ <
<ZWAXJGDLUBVIQHKYPNTCRMOSFE <
<NOZUTWDCVRJLXKISEFAPMYGHBQ <
<UDNAJFBOWTGVRSCZQKELMXYIHP <
< RPLNDVHGFCUKTEBSXQYIZMJWAO <<
MNBVCXZQWERTPOIUYALSKDJFHG
<<AMKGHIWPNYCJBFZDRUSLOQXVET <
Then use the ciphertext: NFQKSEVOQOFNP conversion
<KPBELNACZDTRXMJQOYHGVSFUWI <
<BDMAIZVRNSJUWFHTEQGYXPLOCK <
<GWTHSPYBXIZULVKMRAFDCEONJQ <
<IHFRLABEUOTSGJVDKCPMNZQWXY <
<JZQAWSXCDERFVBGTYHNUMKILOP <
<LVNCMXZPQOWEIURYTASBKJDFHG <
<XPLTDSRFHENYVUBMCQWAOIKZGJ <
<ZWAXJGDLUBVIQHKYPNTCRMOSFE <
<NOZUTWDCVRJLXKISEFAPMYGHBQ <
<UDNAJFBOWTGVRSCZQKELMXYIHP <
<RPLNDVHGFCUKTEBSXQYIZMJWAO <
<MNBVCXZQWERTPOIUYALSKDJFHG <
<AMKGHIWPNYCJBFZDRUSLOQXVET <
In each column, find a meaningful English word in the order from top to bottom, which is the flag.
The
title description of view_source is: Teacher X asked Xiao Ning to view the source code of a web page, but Xiao Ning found that the right mouse button didn't work.
Open URL display
Then try the right button is useless. The title description says that the right button cannot be used. Then you can click the F12 button on the computer keyboard to see the source code and you can see the flag
robots
http://220.249.52.133:38111/robots.txt
f1ag_1s_h3re.php
When backup
opens the website, you will see that you know the backup file name of index.php?
It is wrong to enter index.php in the input box. Then I searched for the backup file. The suffix name of the backup file is .bak, so input index.ph.bak and
there will be an index file. Then remove .bak and open the folder. The flag will be displayed. . 
Tathagata thirteen palm
night duo come to know how bitter note Tuo extravagance extravagant offerings of God Di duo Lumu BU three nephews come to know that is all that is three Ka Ming Ming Li Britain Yejia number extravagant if lucky cowardly terror luxury Chi Tuo come to know if the number of such extravagant nephew Phu She Ji Yuan Ju Lao actually wrote that She Ruo Fan waited for Lu Ba Dou Meng Mi to be away from the cowardly Po to prevent him from Duo Duo Bo and to the south of Duo Duo Bo Duo Xin said the god of punishment Meng Na. She is really timid to win, but to punish, and to punish, is to be far away, to lose, to punish, to lose, to far, to satpan, to dream, to lose, to know Nemo, to punish, to punish, to go to dream nephew, to punish, etc. luxury generous Ming Palace BU Shasu beans lose excessive fear nephew duo give fine gamma versed provide three deaths sand mortar flute mood friction cover a large number of Su who
preceded Buddha said decryption obtained
MzkuM3gvMUAwnzuvn3cgozMlMTuvqzAenJchMUAeqzWenzEmLJW9 then obtained rot13 flag.