
Interactive Encryption and Decryption using RSA
14 March 2022
I had a bit of inspiration recently with Fermat’s Attack on RSA and
decided to make an RSA demonstrator. It shows all the steps in
performing an RSA encryption using 2 known primes. It might be useful
during a CTF when trying to determine small RSA keys by hand. I’ll
eventually post a follow up for implementing that attack for small p
and q.

Reimplementing the Tree Command
30 September 2018
I decided I’m going to try to reimplement the tree utility from
scratch in a very limited version. Mine will only work from the current
directory and will support no arguments. This article will take you
through my implementation of the problem.

Caeser Cipher Decoding Tool
12 May 2018
A caeser cipher is a cipher that moves each letter by a fixed
offset. You'll see these as a common challenge in easier CTF events. So,
I wrote a tool to encode caeser ciphers and generic shift ciphers.

Caeser Cipher Encoding Tool
09 May 2018
A caeser cipher is a cipher that moves each letter by a fixed
offset. You'll see these as a common challenge in easier CTF events. So,
I wrote a tool to encode caeser ciphers and generic shift ciphers.

Unicode Character Code Decoder
21 April 2018
This application decodes a unicode string into it's character codes, and names. It's meant to come in handy with CTF events.
You enter your string in the form below and it will print out a table with the decode of it. I created it because I found
it really difficult to find a decent decoder that gave me the actual codes.