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Protecting SSH keys with TPM 2.0, now available on Debian
(blog.ledger.com)
Debian is a free operating system (OS) for your computer. An operating system is the set of basic programs and utilities that make your computer run. Debian provides more than a pure OS: it comes with over 59000 packages, precompiled software bundled up in a nice format for easy installation on your machine.
I prefer use Yubikey/Canokey instead of TPM. SSH key may be used outside or in other environment (such as my laptop, Android or iPad). And TPM support less algorithms than Yubikey, especially Ed25519 and RSA4096.