Kryptor FPGA

by Skudo OÜ

A one-chip hardware security module (HSM) and MAX10 FPGA dev board

View all updates Sep 15, 2021

Sending Encrypted Data via GPRS & SMS

by Piret Uustal

Wow, time is moving quickly, and we have only about two weeks left to reach our funding goal! We are getting close to the end of the SKUDO Kryptor campaign, but you still have time to take advantage of our unique crowdfunding offer and receive a completely free HSM softcore with each purchase of a SKUDO Kryptor FPGA board. This offer is available only to those who back our campaign by September 28th. We hope you will have fun experimenting with and making use of the encryption functionality offered by this chip to create your very own encrypted communication solutions.

Using SKUDO Kryptor, SMS, and GPRS for Encrypted Communication

This week we are highlighting another very interesting project as an example of what you can build using SKUDO Kryptor. In this tutorial we combine SKUDO Kryptor with a basic, affordable 2G data modem to send encrypted data (using a BME280 sensor as a source) via SMS and a GPRS data link. This project is an example of how you can encrypt and send any type of IoT sensor data by using an affordable yet competitive mobile network. So have a look and try it out yourself once you receive your SKUDO Kryptor board!

Technical Questions

For anyone who’s interested in more technical details, you are welcome to contact us using the Ask a technical question link below. We had a small glitch, during the first few weeks of the campaign, that delayed our responses to some of your questions, but we are now available and will get back to you very quickly. So please do not hesitate to contact us any time with your questions, comments, and requests. We are always very excited to hear from you!

Open Source Details & Our Vision for SKUDO Kryptor

During the campaign we received a few questions regarding whether or not our Verilog source code is open source, so we’d like to clarify that a bit. The algorithms we are using (Camellia, Skein, etc) are open source, as is our hardware (we will publish our PCB design and schematics after the successful end of the campaign and before we begin shipping to backers). For the time being, however, our Verilog implementation is not open source. Our company is still in the start-up phase, and we have invested considerably, over the past few years, in the development of these implementations. As such, we are not yet in a position where we can afford to open source them.

Our vision for this crowdfunding campaign has been to adopt strong, professional encryption technology used in specific niche markets, such as space applications, and make it accessible to and affordable for a wider audience that includes makers and IoT enthusiasts. That goal has been the driving force behind the SKUDO Kryptor project, and we are excited that we will be able to provide this solution to our backers.

We hope this gives you clearer insight into aims and objectives. We look forward to having you among our backers during these last weeks of our campaign. Let’s make it happen together!

To engage with us directly and more frequently, we welcome you to join us in our Telegram group or on Twitter (@SkudoTech). As always, we are happy to hear from you. Your feedback and suggestions for our project are important, so please be sure to share them with us.

About the Author

Piret Uustal

$11,358 raised

of $13,000 goal

87% Funded

Pledge Now


SKUDO Kryptor FPGA Board

One SKUDO Kryptor FPGA board, one voucher for a free Skudo HSM softcore download, one BB-170 Solderless Plug-In Breadboard, and six male/female 10 cm jumper wires.


Two-Pack of SKUDO Kryptor FPGA Boards

Two SKUDO Kryptor FPGA boards, two vouchers for a free Skudo HSM softcore download, two BB-170 Solderless Plug-In Breadboards, and 12 male/female 10 cm jumper wires.


SKUDO Kryptor JTAG adapter

Adapter with pogo pins that connects a USB Blaster to the SKUDO Kryptor FPGA board to reprogram it using its JTAG interface.


USB Blaster

An FPGA programmer that you can use to reprogram Skudo Kryptor through its JTAG interface.


Skudo OÜ

Skudo is an European company offering deep-tech cybersecurity and hardware based encryption for high level niche markets (space, critical infrastructure, IoT etc.) We realized that for guaranteeing the highest level of security that these fields require, the hardware encryption is a must, but the commercial hardware encryption solutions available on the market did not match our clients needs. Hence, we decided to build it ourselves.

Stefano Alberico

Piret Uustal



PCB fabrication & assembly

See Also

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