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Using multiple devices does not preclude one from using a server and end-to-end encryption.

The reason I ask is about private key movement. I'm curious how you share that across devices. It's the biggest issue in e2e encryption imo.

Just curious if you do anything novel there.

I don't do anything novel. I have my private key on three devices.

How do you get that private key on each of your devices, this is a real issue for a lot of less technical users.

Unless they're using an HSM, that would most likely be a matter of just copying a file.

With an HSM, it would have to be marked as exportable (bad for security), or to happen via some proprietary HSM to HSM cloning method endorsed by the vendor.

That said, I don't see that much HSM usage outside of the government or their contractors.

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