Preparations for mass production

Written by Dominik Joe Pantůček on January 17, 2019.

After some months of intensive testing and specifying all the details of the batch manufacturing process, we have given it a green light and in a few weeks, we expect to have first hundreds of Cryptoucans™ in stock. Read on to see what the final stages of testing were like.

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Cryptoucan™ safety testing

Written by Dominik Joe Pantůček on January 10, 2019.

Although Cryptoucan™ is a cryptographic – security – device, it contains delicate electric circuitry and certain electronic components can produce significant amount of heat should there be any soldering problem. Therefore the device safety is also of utmost importance for us. Read on to see how we make sure no short circuit heats up more than it should.

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XChaCha20 and Poly1305

Written by Dominik Joe Pantůček on January 3, 2019.

With symmetric key to protect all Cryptoucan™ secrets, it is necessary to use it properly both for symmetric encryption of the private data but also for ensuring the integrity of whatever is stored on the flash memory. Read on to learn more about our cipher and message authentication code of choice.

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BLAKE2 embedded implementation

Written by Dominik Joe Pantůček on December 27, 2018.

Developing a cryptographic device requires going through all different parts of the system to deliver something the user can really trust. Read on to see why you should care what cryptographic primitives and how your devices use internally.

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Cryptoucan™ cryptographic model

Written by Dominik Joe Pantůček on December 20, 2018.

Creating a truly secure cryptographic storage requires thinking hard about the cryptographic model for protecting the secret keys. Read on to see the approach we have designed and implemented.

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