Plug and play “HSM on a chip” encryption board for makers. It provides a pre-configured FPGA chip with all functionalities needed to encrypt any data, which can be easily accessed and used by any maker board (e.g. RaspberryPi and Arduino).


S500 with on the ground (with Kryptor FPGA on board)
Flying S500 with Kryptor FPGA on board
Ground Control Station with Kryptor FPGA on board
Kryptor FPGA board connected to a Raspberry Pi via SPI link


  • Fully functional HSM
  • Model: MAX10 8K LE
  • 1376 Kbits of internal Flash
  • 378 Kb of total internal RAM
  • GPIO: 250 available from the FPGA (fewer accessible on the board)
  • Runs at 100 MHz
  • SPI link speed up to 100 Kbps
  • API / encrypted Command Line Interface
  • Anti piracy duplication protection and strong authentication (via chip ID)
  • Size 22.8 x 31.2 mm
  • Weight 4 g

How does it work?

Any controller board ( e.g. RaspberryPi, Arduino etc.) can be connected to the Kryptor PCB via SPI, I2C and UART using a simple data protocol (free Linux API software libraries are also provided) enabling access to all the functionalities of the Hardware Security Module (symmetric encryption, asymmetric encryption, hashing, keys generation/storing/management and a True Random Number Generator). Any maker is able to access those functionalities and build complex solution based on them. Kryptor is provided with a pin header (2.54mm) which fits perfectly into a standard breadboard and via 6 jumper cables (4 for SPI, 1 for 5V and 1 for GND) it can be connected e.g. to a RaspberryPi and put into use in a few minutes.


  • Symmetric encryption: Camellia, Camellia-CBC, Camellia-CTR
  • Asymmetric: Elliptic Curve25519 (ECDH)
  • Hashing: Skein
  • All crypto functions are embedded and running in our custom FPGA chip inside Skudo PCB (without OS, bare-metal)
  • True Random Number Generator (TRNG): FIGARO

About Skudo

We envision a world where all digital communications are safe and private. We are dedicated to creating innovative best-in-class solutions that protect data exchange with the highest level of security and privacy.