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Designing the electronic circuitry or creating a good looking device were very interesting tasks to do. Yet, to produce the first fully-working prototype, there were many things we needed to address. This Thursday we will have a look at some of these.

Last week, we have shown you the internal electronic circuitry board and the decisions why we choose to create Cryptoucan™ in the first place. Today we are going to show you our thoughts when designing the device exterior.

For those who have been wondering what is this Cryptoucan™ all about, wonder no more. We are ready for medium-scale batch production and you will be able to get your own Cryptoucan™ soon. Read on to find out how we designed the integrated circuitry.

As we have shown during the last few weeks, there are certain confidentiality, integrity and authenticity problems with email communication. We have already shown, that there is some decent cryptography available today that can improve the security of email communication. The only unsolved problem left is how to secure your cryptographic keys when you cannot trust your own computer. Good thing is, you can secure your digital identity even in case your personal computer gets compromised. Read on to learn what we have designed.

After slightly going astray from the elliptically curved path on our favorite doughnuts, we return from the realm of electronic mail to much more interesting world of mathematics. Today, our effort to explain elliptic curves in simple Weierstrass form and their usage should reach its second culmination. With Diffie-Hellman key exchange explained, the only part that is missing is some digital signature scheme. So please read on to find the beauty of the Elliptic Curve Digital Signature Algorithm beast.