> 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/crypto.md).

# Crypto

- [home rolled](https://the-winrars.gitbook.io/writeups/2020-writeups/tjctf/crypto/home-rolled.md)
- [rgbsa](https://the-winrars.gitbook.io/writeups/2020-writeups/tjctf/crypto/rgbsa.md)
- [difficult decryption](https://the-winrars.gitbook.io/writeups/2020-writeups/tjctf/crypto/difficult-decryption.md)
- [Reasonably Secure Algorithm](https://the-winrars.gitbook.io/writeups/2020-writeups/tjctf/crypto/reasonably-secure-algorithm.md)
- [Is this Crypto](https://the-winrars.gitbook.io/writeups/2020-writeups/tjctf/crypto/is-this-crypto.md)
- [Titanic](https://the-winrars.gitbook.io/writeups/2020-writeups/tjctf/crypto/titanic.md)