Software engineer, 8 years of building things
Sahithyan Kandathasan
I sweat the parts most people skip past, fast pages, edge cases that actually get handled, interfaces that don't fight you. Engineering undergrad at University of Moratuwa, about to start at WSO2 after years of freelance and startup work.
Selected work
Full timeline ->Notes
My notes on what I am studying at Computer Science & Engineering at University of Moratuwa in each semesters.
Recent Posts
Comparing Ballerina with Other Backend Languages
I built the same blogging API in 7 stacks, to see where Ballerina actually stands.
An Interactive Guide to AES
How AES scrambles a 16-byte block using the same shared key twice, and why 4 simple operations repeated 10 times are enough to make it unbreakable.
An Interactive Guide to DES
How the cipher that secured banking and government data for 20 years works, and why the same design that made it elegant also made it breakable.
An Interactive Guide to RSA
How public-key cryptography lets anyone encrypt a message that only you can decrypt, and the math behind why it is so hard to break.
Found a bug on this site, or building something you would like a second pair of eyes on? Reach out, I read every message.