Cryptography

Public key methods provide us with ways of both authenticating the sender, and the integrity of the method. Unfortunately most of the…

This article will hopefully give a bit of background around bitcoins and Elliptic Curve Cryptography (ECC), and has a bit of fun with the…

The method defined in this article is here, and is well known in the literature. So let’s have a bit of fun with it, in order that we can…

Well it’s that time of the year again, where Edinburgh is bursting at the seams. But you are worried about all the data breaches that are…

The Catch-22 of data

So let’s say we have one billion people who are in a competition. We have a single toss of the coin, and if you match it, you continue. If…

A demo of the methods involved in this article are here.

Introduction

We need to move to an information world where every single data element is be encrypted at every point, no matter if it is at rest, in…

Humans like words, and computers like binary, so we need to find ways where we can generate encryption keys that we can remember. One…

The AES method is a block cipher which uses a block size of 128-bits and key sizes of 128 bits, 192 bits and 256 bits. It operates by uses…

With public key encryption, Alice could have two possible messages (a ‘0’ or a ‘1’) that she sends to Bob. If Eve knows the possible…

So after nearly four years and 28 drafts, the IETF (Internet Engineering Task Force) has finally pushed TLS (Transport Layer Security) 1.3…

Many of our public key methods involve the multiplication of prime numbers. For example the security of RSA is based on the multiplication…

There you go … you can’t accuse me of click-baiting. With a title like this, you’re only going to click on this page, if you really want to…

Smooth numbers are used in cryptography to provide fast factorization methods. A smooth number is defined as a number whose factors are…

The Hashing Method Designed To Defeat GPUs

Do your eyes glaze over when someone mentions the size of an encryption and the block size? Well, it’s important as the security of our…

It was recently released that LinkedIn failed to salt its passwords in the 2012 hack, and while salting would have increased the time it…

Introduction

We are starting to see a whole lot of software developers getting interested in cryptography, especially in assessing for vulnerabilities…