A forum reference for anyone searching for security apps:
wolfssl has a variety of security tools - dual licenced (open source & commercial). Most/some of them interact with the TPM security chip on the computer’s motherboard.
Written in C, small footprint; portable, for embedded, RTOS, or resource-constrained environments; compatability includes Win, MAC, Linux, Haiku, ARM, Intel, RISC-V, etc.
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wolfSSL: a C-language-based SSL/TLS library.
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wolfCrypt: embedded cryptography engine / library.
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wolfTPM: a portable TPM 2.0 project.
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wolfSSH: an SSHv2 server library.
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wolfBoot: a portable, OS-agnostic, secure bootloader solution for 32-bit microcontrollers.
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wolfSentry: an IDPS (intrusion detection and prevention system), featuring an embedded firewall engine.
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And others…