Block's Bitcoin Cold Storage solution.

Protecting cryptographic signing keys and seed secrets with Multi-Party Computation.

Hardware Security Module (HSM) for Raspberry Pico and ESP32

PKCS#11 library and tools for Linux and AIX. Includes tokens supporting IBM crypto hardware as well as a software token.

OPTIGA™ Trust M Host Library for C

Easy-to-use high-level library for PKI-enabled applications

A Minimalist Asynchronous Toolkit (AMAST) is a small and efficient C99 library that helps manage complex, event-driven programs. It combines the Actor model with hierarchical state machines to make building real-time systems easier.

HSM library that uses wolfCrypt as it's fallback crypto

wolfSSL PKCS#11

PKCS #11 provider library and software HSM implementation in Go.

A tool to generate and manage cryptographic keys using a Luna HSM

A treasure chest providing first-class samples of source codes to use or discover the many features of a Luna HSM.

HSM software for Microsemi's Smartfusion2

An OpenSSL provider giving access to various cryptographic algorithms running on a Luna Network appliance, including post-quantum ones.

Bootloader16 examples using different verication methods including ECDSA

Nginx module for HSM Service with PKCS11/Cryptoki lib (SoftHSM)

C boilerplate code for embedded systems.

Minimalistic implementation of Active Object pattern + FSM for embedded systems.

The code is a basic kernel module that demonstrates how to initialize a secure driver, though integrating TPM or HSM functionality would require additional kernel-space libraries, such as tpm_tis or tpm_dev for TPM devices.

pkcs11-provider API example in C