Misc-Halo
题目:
1
| aWdxNDs6NDFSOzFpa1I1MWliT08w
|
请提交flag{}形式的答案 （这题没多难，这题只是缺德）
解题：
base64后:
igq4;:41R;1ikR51ibOO0
后来尝试多种后，想到之前看到过的base64和异或，于是尝试了下：
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
| python
from base64 import *
b = b64decode("aWdxNDs6NDFSOzFpa1I1MWliT08w").decode()
print(b)
data = list(b)
print(data)
for k in range(0, 200):
key = ""
for i in range(len(data)):
key += chr(ord(data[i]) ^ k)
print(key)
|
输出:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
| igq4;:41R;1ikR51ibOO0
hfp5:;50S:0hjS40hcNN1
kes69863P93kiP73k`MM2
jdr78972Q82jhQ62jaLL3
mcu0?>05V?5moV15mfKK4
lbt1>?14W>4lnW04lgJJ5
oaw2=<27T=7omT37odII6
n`v3<=36U<6nlU26neHH7
aoy<32<9Z39acZ=9ajGG8
`nx=23=8[28`b[<8`kFF9
cm{>10>;X1;caX?;chEE:
blz?01?:Y0:b`Y>:biDD;
ek}8768=^7=eg^9=enCC<
dj|9679<_6<df_8<doBB=
igq4;:41R;1ikR51ibOO0
hfp5:;50S:0hjS40hcNN1
kes69863P93kiP73k`MM2
jdr78972Q82jhQ62jaLL3
mcu0?>05V?5moV15mfKK4
lbt1>?14W>4lnW04lgJJ5
oaw2=<27T=7omT37odII6
n`v3<=36U<6nlU26neHH7
aoy<32<9Z39acZ=9ajGG8
`nx=23=8[28`b[<8`kFF9
cm{>10>;X1;caX?;chEE:
blz?01?:Y0:b`Y>:biDD;
ek}8768=^7=eg^9=enCC<
dj|9679<_6<df_8<doBB=
....
|
看到唯一一个没有特殊字符的：
提交,即flag~
