Character Encoding
1 minute to read
We are given these characters:
43 54 46 6C 65 61 72 6E 7B 34 35 43 31 31 5F 31 35 5F 55 35 33 46 55 4C 7D
Since they are numbers and letters between A
and F
, they seem to be ASCII characters in hexadecimal representation.
For instance, 0x43
is the code for C
, 0x54
for T
and 0x46
for F
.
To decode all the characters, we can use the following “one-liner”:
$ xxd -r -p <<< '43 54 46 6C 65 61 72 6E 7B 34 35 43 31 31 5F 31 35 5F 55 35 33 46 55 4C 7D'
CTFlearn{45C11_15_U53FUL}