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Unfortunately, you can't use Ed25519 keys unless you have the latest/newest model(s) of Yubikey and that Yubikey came with at least a specific firmware version
by jlgaddis 7y ago
Unfortunately, you can't use Ed25519 keys unless you have the latest/newest model(s) of Yubikey and that Yubikey came with at least a specific firmware version (5.2.3, IIRC).