> For the complete documentation index, see [llms.txt](https://the-winrars.gitbook.io/writeups/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://the-winrars.gitbook.io/writeups/2020-writeups/tjctf/is-this-crypto.md).

# Is this Crypto

Single byte xor bruteforce with key 0x91

## tjctf{n0\_th15\_is\_kyl3}