Need help deciphering a code

[Eden]

UIUWYBIIBPIRYBCNRSB
IFCSUSYCVARQKCSX

Please help with this. I can't make heads or tails of it.

[Ad Bot]

[Ipquarx]

Where'd you find it?

It's probably something from here: http://practicalcryptography.com/ciphers/classical-era/
These are all ciphers that work on letters, not bits of information like modern ones.

I tried a ceaser cipher, but nothing worked :(

[Eden]

Where'd you find it?

It's probably something from here: http://practicalcryptography.com/ciphers/classical-era/
These are all ciphers that work on letters, not bits of information like modern ones.

I tried a ceaser cipher, but nothing worked :(

It was from another website I visit often, somebody posted an ARG and this was part of it.

[Ipquarx]

It was from another website I visit often, somebody posted an ARG and this was part of it.

mind giving a link? It could help us figure out what algorithm they used to encode it.

[Eden]

mind giving a link? It could help us figure out what algorithm they used to encode it.

I don't want to take any chances of getting banned for advertising other forums, but there is a zip file involved.
http://justfilehosting.space/download.php?f=hipum

[Ipquarx]

A fallout 4 arg huh? interesting...

[SeventhSandwich]

Password for the zip file?

[Eden]

Password for the zip file?

fallout

[SeventhSandwich]

Because the first ciphertext isn't a Caesar shift, my best guess is that it's a Vignere with some kind of key related to the Fallout universe.

If you want to help, use this:
http://www.mygeocachingprofile.com/codebreaker.vigenerecipher.aspx

and guess keys based on fallout words

[Harry Mason]

It's possible it uses the "three letters back" code.

[SeventhSandwich]

On second thought, I don't think it uses a Vignere. It's too short to use any kind of frequency brown townysis to figure it out, and I doubt they'd want us to do guess and check.

[Ipquarx]

It's possible it uses the "three letters back" code.

that's a ceaser cipher, and I tried that already. Nothing comprehensible came out of it.

[SeventhSandwich]

that's a ceaser cipher, and I tried that already. Nothing comprehensible came out of it.

What's left to try? I kind of want to know what website put this ARG out, since sometimes amateurs make ARGs that are unsolvable.

[Eden]

Figured it out - it was a simple substitution cipher and translated to "IT IS BETTER TO BE ALONE THAN IN BAD COMPANY." Locking.