Information Theory, Computer Science, and Mathematics

So much to learn, so little time.

Of course, cybersecurity is an interdisciplinary filed, and a subfield, of several other important fields of knowledge. Namely: information theory, computer science, and mathematics. There are of course other important areas, but I think for right now my interest lies mainly in these three areas, and these are the sorts of notes I would like to keep here.

As of today, I have also decided to add GIS. Which purports a disturbing trend: it may be that over the course of time a bit of almost everything will go here. Anyway, in the worlds of Al Lubel, "Why worry about the crash; enjoy the spin."

GIS

Coordinate Distance Calculator

Calculate the distance between two points or one point and a number of points, sorted by closest.

Information Theory

"Information theory studies the quantification, storage, and communication of information. It was originally proposed by Claude E. Shannon in 1948 to find fundamental limits on signal processing and communication operations such as data compression, in a landmark paper entitled 'A Mathematical Theory of Communication'." >>> The Encyclopaedia Article


"In the present paper we will extend the theory to include a number of new factors, in particular the effect of noise in the channel, and the savings possible due to the statistical structure of the original message and due to the nature of the final destination of the information." - Claude E. Shannon >>> The Original Paper

Computer Science

Here.

Mathematics

Here.

Merlin Says Learn
Cybersecurity Topics
The policies of governments, standards bodies, industry organizations and even large companies have an impact on the cybersecurity landscape. The intention of policy and law is to prevent or remediate criminality, abuse and even espionage.
The news produced by and for the cybersecurity community is markedly different than the news that is produced for general public consumption. Many cybersecurity have an engineering or computer science background, and as such, there is an appreciably lower tolerance for bias, spin, and fake news. Still, take anything you read online with a grain of salt, and keep reading, because we are unlikely to ever hear the final word, on anything of interest.
"...Software is malleable and easily changed. This quality is advantageous to core functionality, but is harmful to security as well as performance...' "Last minute changes to design -- and future improvements -- are easily accommodated. But this malleability creates a broader surface for attack."
Someday I will have something intelligent to say about hardware security. Hopefully, someday soon.
Cryptography is the art of making an intentional message unreadable to anyone who does not know/have the key. The art of cryptography is informed by mathematics and computer science. Cryptography is an all or nothing game: once your cipher is broken, all your efforts are lost. But until then, you are undefeatable.
So much to learn, so little time. Of course, cybersecurity is an interdisciplinary filed, and a subfield, of several other important fields of knowledge. Namely: information theory, computer science, and mathematics. There are of course other important areas, but I think for right now my interest lies mainly in these three areas, and these are the sorts of notes I would like to keep here.