On Tue, Apr 12, 2016 at 7:26 PM, Ron Garret <[email protected]> wrote:
> This HSM is much more general-purpose than a U2F token. > Well, that's true, but it's also hundreds of times bigger than a token in the Yubikey "nano" form factor, which is actually convenient to keep permanently in the USB slot of a laptop. Your physical design seems pretty unwieldy for laptops (see also Yubico's keychain designs). Yubikey "nano" factor tokens like the NEO-n have also supported more general purposes than a U2F token (e.g. CCID interface, OpenPGP applets, see also PIV) I swear I'm not a paid shill for Yubico, but I'm a fan of small display-free hardware tokens. While a token like what you've built might provide Maximum Security under pessimistic threat models, its large size makes it look rather inconvenient to me. -- Tony Arcieri
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