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STM32 firmware for Cryptech Alpha board

The Alpha board is our first full prototype for an open-source hardware security module (HSM). It is a custom board with an STM32 Cortex-M4 microcontroller and an Artix-7 FPGA, flash-based keystore, separate memory for the Key Encryption Key, etc. See the wiki for design documents.

Copyrights

The license for all work done on this in the CrypTech project is a 3-clause BSD license.

The "Noise generator" and "Amplifier" parts of the circuit diagram are copied from Benedikt Stockebrand's ARRGH project.

Both copyright statements are included in LICENSE.txt.

Board Revisions

  1. rev01 was the "dev-bridge" board, a daughterboard for the Novena, which talked to the Novena's FPGA through the high-speed expansion connector.

  2. rev02 is the Alpha board, our first full prototype for an open-source hardware security module (HSM). It is a custom board with an STM32 Cortex-M4 microcontroller and an Artix-7 FPGA, flash-based keystore, separate memory for the Key Encryption Key, etc.

    The board's form factor (4 x 4 in, 101.6 x 101.6 mm) was based on the Intel NUC mini-PC, but there were some issues sourcing enough cases, so only a few of these boards were made.

  3. rev03 is functionally the same as rev02, but in a Eurocard form factor (100 x 120 mm, aka "3Ux120").

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