A closed-firmware USB key is really no better option.
Dear Yubico / Kensington / Google Titan, can I export my private key components to this other device, or even print them out on paper for storage?
No - you're just an untrustworthy user granted the fleeting privilege of using BigCorp devices. Now stop asking such questions or you might have your attestation revoked.
Dear Yubico / Kensington / Google Titan, can I export my private key components to this other device, or even print them out on paper for storage?
No - you're just an untrustworthy user granted the fleeting privilege of using BigCorp devices. Now stop asking such questions or you might have your attestation revoked.