XOR Is Friend Not Food
100 points Hard

Here: \t\x1b\x11\x00\x16\x0b\x1d\x19\x17\x0b\x05\x1d(\x05\x005\x1b\x1f\t,\r\x00\x18\x1c\x0e

I think the flag started with: ctflearn{

Flag
Cryptography ยท intelagent
1053 solves
Rating 4.19
5
4
3
2
1
Must solve to rate

Discussion

avatar
Kamii443

2 months ago

Reply Share

it's a really good one

0
avatar
bloman

1 year ago

Reply Share
Protected
0
avatar
SENSEI-XENUS

1 year ago

Reply Share

Repeatingxor ting

0
avatar
quido18

1 year ago

Reply Share

That was nice.

0
avatar
starkid

1 year ago

Reply Share

I think putting it in C language escape characters is kinda unnecessary, but hey, I guess it made me work on it a lot longer and make a lot more mistakes?

0
avatar
zero_cool

1 year ago

Reply Share

Solved it!

0
avatar
MShadow

2 years ago

Reply Share

Since we are only given the first 9 characters of the plaintext, shouldn't it be technically impossbile to figure out what the key is?

-3
avatar
mmk101

2 years ago

Reply Share

search up what xor cipher is and do arithmetic

0
avatar
MShadow

2 years ago

Reply Share
Protected
-2
avatar
Andrewin

2 years ago

Reply Share

any hints

0
avatar
adamwalker

2 years ago

Reply Share

Neat challenge but I would've rated it a light medium. For people struggling with this, just look up what an XOR cipher is and do some arithmetic

0