Category
Cryptography
Description
More layers of encryption! (Hint: there are 5 layers)
Solution
Attached to the challenge there’s this text.
GRYUG3ZUOFBWWNDRINVTI4KDNM2HCQ3LGRYUGQJUOFBW6NDRINXTI4KDN42HCQ3PGRYUG2ZUOFBUCNDRINVTI4KDN42HCQ3PGRYUG3ZUOFBW6Q3VJNTXCT2LM5YE6S3HOBHUWZ3QJ5FWO4CPJNTWOT2LM5YU6S3HOFHUWZ3RJ5FWO4KPJNTXCT2LM5TU6S3HOFHUWZ3RJ5FWO4KPJNTXCT2LM5YEC4TJN5FWU2LPJNKGS32LKRUW6S2UNFXUWVDJN5EUI2LPJNVGS32LNJUW6S3KNFXUW2TJN5FVI2LPJFCGS32LNJUW6S2UNFXUWVDJN5FVI2LPJNIUWNDRINXTI4KDNM2HCQ3LGRYUG2ZUOFBWWNDRINATI4KDN42HCQ3PGRYUG3ZUOFBW6NDRINVTI4KDIE2HCQ3LGRYUG2ZUOFBW6NDRINXTI4KDN5BXKS3HOFHUWZ3QJ5FWO4CPJNTXAT2LM5YE6S3HM5HUWZ3QJ5FWO4CPJNTXCT2LM5YU6S3HOFHUWZ3HJ5FWO4KPJNTXCT2LM5YU6S3HOBHUWZ3QIFZGS32LNJUW6S2UNFXUWVDJN5FVI2LPJNKGS32JIRUW6S3KNFXUW2TJN5FWU2LPJNVGS32LNJUW6SKENFXUW2TJN5FWU2LPJNVGS32LNJUW6S3HJM2HCQ3LGRYUG3ZUOFBW6NDRINXTI4KDN42HCQ2BGRYUG3ZUOFBW6NDRINXTI4KDNM2HCQ3LIN2UWZ3RJ5FWO4KPJNTXCT2LM5YU6S3HOBHUWZ3HJ5FWO4KPJNTXCT2LM5YU6S3HOFHUWZ3QIFZGS32LNJUW6S2UNFXUWVDJN5FVI2LPJNKGS32JIRUW6S2UNFXUW2TJN5FWU2LPJNVGS32LNJUW6SKENFXUW2TJN5FWU2LPJNVGS32LKRUW6S2RJM2HCQ3PGRYUG2ZUOFBWWNDRINVTI4KDNM2HCQ2BGRYUG2ZUOFBWWNDRINXTI4KDN42HCQ3PGRYUGQJUOFBW6NDRINVTI4KDNM2HCQ3LGRYUG22DOVFWO4KPJNTXAT2LM5YE6S3HOBHUWZ3QJ5FWOZ2PJNTXAT2LM5YE6S3HOFHUWZ3RJ5FWO4KPJNTWOT2LM5YU6S3HOFHUWZ3RJ5FWO4KPJNTXCQJ5HU======
This looks like base32 encoding. Decoding this we get the following text.
4qCo4qCk4qCk4qCk4qCk4qCA4qCo4qCo4qCo4qCo4qCk4qCA4qCk4qCo4qCo4qCo4qCoCuKgqOKgpOKgpOKgpOKgpOKggOKgqOKgqOKgqOKgqOKgqOKggOKgqOKgqOKgqOKgqOKgpArioKjioKTioKTioKTioKTioIDioKjioKjioKjioKjioKTioIDioKjioKTioKTioKTioKQK4qCo4qCk4qCk4qCk4qCk4qCA4qCo4qCo4qCo4qCo4qCk4qCA4qCk4qCk4qCo4qCo4qCoCuKgqOKgpOKgpOKgpOKgpOKggOKgpOKgpOKgqOKgqOKgqOKggOKgqOKgqOKgqOKgpOKgpArioKjioKTioKTioKTioKTioIDioKjioKjioKjioKjioKjioIDioKjioKjioKjioKjioKgK4qCk4qCo4qCo4qCo4qCo4qCA4qCo4qCo4qCo4qCk4qCkCuKgqOKgqOKgqOKgqOKgpOKggOKgqOKgqOKgqOKgqOKgpArioKjioKTioKTioKTioKTioIDioKTioKjioKjioKjioKjioIDioKjioKjioKjioKTioKQK4qCo4qCk4qCk4qCk4qCk4qCA4qCk4qCk4qCo4qCo4qCo4qCA4qCo4qCk4qCk4qCk4qCkCuKgqOKgpOKgpOKgpOKgpOKggOKgpOKgpOKgqOKgqOKgqOKggOKgqOKgqOKgqOKgqOKgqA==
Which looks like base64, decoding this we get another text.
⠨⠤⠤⠤⠤⠀⠨⠨⠨⠨⠤⠀⠤⠨⠨⠨⠨
⠨⠤⠤⠤⠤⠀⠨⠨⠨⠨⠨⠀⠨⠨⠨⠨⠤
⠨⠤⠤⠤⠤⠀⠨⠨⠨⠨⠤⠀⠨⠤⠤⠤⠤
⠨⠤⠤⠤⠤⠀⠨⠨⠨⠨⠤⠀⠤⠤⠨⠨⠨
⠨⠤⠤⠤⠤⠀⠤⠤⠨⠨⠨⠀⠨⠨⠨⠤⠤
⠨⠤⠤⠤⠤⠀⠨⠨⠨⠨⠨⠀⠨⠨⠨⠨⠨
⠤⠨⠨⠨⠨⠀⠨⠨⠨⠤⠤
⠨⠨⠨⠨⠤⠀⠨⠨⠨⠨⠤
⠨⠤⠤⠤⠤⠀⠤⠨⠨⠨⠨⠀⠨⠨⠨⠤⠤
⠨⠤⠤⠤⠤⠀⠤⠤⠨⠨⠨⠀⠨⠤⠤⠤⠤
⠨⠤⠤⠤⠤⠀⠤⠤⠨⠨⠨⠀⠨⠨⠨⠨⠨
This is braille text. Converting this we get yet another text.
.---- ....- -....
.---- ..... ....-
.---- ....- .----
.---- ....- --...
.---- --... ...--
.---- ..... .....
-.... ...--
....- ....-
.---- -.... ...--
.---- --... .----
.---- --... .....
This time it’s morse code. Converting this we get some numbers.
146 154 141 147 173 155 63 44 163 171 175
Converting the numbers from octal we finally get the flag.
flag{m3$sy}