An HSM consists of some secure memory to store a secret and a program, and a processor to run the program to perform computations using the secret. A Yubikey c

An HSM consists of some secure memory to store a secret and a program, and a processor to run the program to perform computations using the secret. A Yubikey consists of some secure memory to store a secret and a program, and a processor to run the program to perform computations using the secret. The programs are different but they are basically the same thing. The author wonders why there isn't a simple general purpose gadget you can load your own program on to. As long as the action of loading a program clears existing secrets, the device could be secure. Or to put it another way, consider a Raspberry Pi acting as a router and as a Raspberry Pi acting as a media streamer. They have completely different purposes, but they are the same thing.