Sergey Ichtchenko

A Computer Science and Mathematics undergraduate. Working as a Cyber Security Consultant.

How to join the web of trust

Back in the 90s, there were these events called keysigning parties where people came together to verify each others cryptographic keys in real life and prove that they were who they claimed to be to each other. I think we should bring this tradition back!

Sergey Ichtchenko

Look at my Oxford coursework

One thing that I love about Oxford is that all of the (maths and CS) courses are freely accessible on the internet!

Sergey Ichtchenko

Symbols that streamline communication

A lot of communication (in any natural language) is long and inefficient. Here is a short list of symbols that I think are nice ways of making speech and text more terse.

Sergey Ichtchenko

On the definition of triviality

One can often hear the word “trivial” being thrown around when studying mathematics. Unfortunately, no one quite seems to know what it means.

Sergey Ichtchenko

How to hack an amusement park

In the summer of 2019 I came to the realisation: I haven’t gone to an amusement park in years! There was a new ride in my local park that seemed very fun, so I decided to look it up on their page, just to see what it was like.

Sergey Ichtchenko