Life of a photon
Flying over a metropolitian On a flying thing Over the lush green valleys, the waterfalls and the rivers, the rocky spires, the cracked salt beds Desert at the end of the world where people go to be at peace perhaps Clean, warm, soft sand that you can walk through Or...
Life of a photon
A photon knows not the concept of time.
Farallon Islands: A study through binoculars
I recently took a tour of the Farallon Islands. A fishing boat took us out on a surprisingly warm and clear day. Unfortunately, I didn’t have a telephoto lens. I did, however, have a pair of cheap Bushnell binoculars and my phone. This is my adventure in binocular photography with...
Dominica has many faces and I was fascinated to see several of them. The most memorable was the one I saw when I decided to take a short hike down to a river. What was supposed to be a hot and humid day quickly turned into immense downpours and chilly...
We are in the midst of a plague so I decided to finish this post about the mask
I made to keep the miasma away. Well, not really – this mask won’t help
protect you against this plague but it will help you get into an Edwardian
Cigar and a Drink
I have been sitting on a photo that I took a while back but never got a chance to process and post. I was up late at night with a nice cigar I had bought on a bike ride earlier that day. Oh those Cuban cigars. I could spend an...
The greater appearance of Russia on the world political stage combined with the Sino-American trade war, worsening relationships between European Union and the United States, the strange Russian-American “alliance”, and China’s growing and highly effective cyberwarfare force has led to the eventuality that is the current military conflict between Russia...
Installing Archlinux on Late 2015 iMac
Recently, I had to install Archlinux on an iMac … again. It has never been
an easy process but it was particularly annoying this time around. Thanks Obama!
Tarsnap and I
TL;DR; Use tarsnap to make cheap, secure backups.
Simple Constant-time Conditional Swap
During my internship at Cisco Meraki, I was implementing IKE (Internet Key Exchange) for our VPN and while reading up on some of the crypto involved, I found out that one of the requirements of a good multi-precision integer implementation is that it be able to do constant-time modular exponentiation...
Neat Nested Classes in C++
Nested classes are awesome. But write the implementations outside.
Dynamic Programming Algorithm for Permuting Strings
Coded up a DP algorithm in python for computing all the permuations of the
characters in a string. I know it’s not very space efficient but it can be
made so because we only ever need the previous level of permutations.
Method and Object Serialization in Python
While working on my personal general-purpose task distribution system, (antnest), I came across the problem of serializing the methods of the task units to be assigned to the slave nodes for them to work on. The purpose is to implement something similar to Remote Procedure Calls but without having to...
I recently changed my website from a bunch of hand-stiched webpages dynamically
generated by python scripts to using Hyde.
Here’s a list of conjectures about Wikipedia compiled from different sources or
suggested by myself or friends.
Using Eduroam with Wicd
This is the configuration for wicd to be used for eduroam at University of
Waterloo (may or may not work with other eduroam networks). Create a file at
/etc/wicd/encryption/templates/ and add the filename to the active file
in the same directory:
Courses I Liked
An introductory course to crypto, drawbacks of old crypto methods, (very) basic
crypto analysis, designing (very) basic crypto. A must especially if Alfred
Menezes is teaching.