And this is exactly the type of strawman that usually accompanies the "conspiracy theory" bashing. You've chosen the strongest-claiming narrative, which is easily knocked down.
The simplest scenario isn't that YubiKey 4 went closed source to support a government backdoor. It's that it's entirely for business reasons as they've said. And then after a few years, a few more layers of middle management, a few interesting users, and a little more TLA focus, Yubikey 6 quietly gets subverted.
Tangentially - I was pretty close to buying a Yubikey Neo for its form factor, but it didn't seem like I could modify/reload the OpenPGP applet, and documentation was scant as to how configurable it was. I really want the thing to operate as semi trusted hardware - passphrase, etc. Smartcard tech is nifty, but it seems like a non-hardened chip would be more worthwhile for the ability to iterate features/UI.
The simplest scenario isn't that YubiKey 4 went closed source to support a government backdoor. It's that it's entirely for business reasons as they've said. And then after a few years, a few more layers of middle management, a few interesting users, and a little more TLA focus, Yubikey 6 quietly gets subverted.
Tangentially - I was pretty close to buying a Yubikey Neo for its form factor, but it didn't seem like I could modify/reload the OpenPGP applet, and documentation was scant as to how configurable it was. I really want the thing to operate as semi trusted hardware - passphrase, etc. Smartcard tech is nifty, but it seems like a non-hardened chip would be more worthwhile for the ability to iterate features/UI.