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Isn't paper actually one of the more secure storage mediums? If you asked me the best way to store a secret I'd say put it on paper and lock it in a safe. I'd p
by manfredo 6y ago
Isn't paper actually one of the more secure storage mediums? If you asked me the best way to store a secret I'd say put it on paper and lock it in a safe. I'd probably do something like print a QR code with an encrypted secret and store the key on a separate printed QR code.
- cjhveal 6y agoPaper in this context is a form of cold storage, you could get very similar results encoding the information on magnetic tape or on a hard drive stored in a safe. Cold storage turns the information security problem into a physical security problem. The catch comes when you need to use this information regularly, say to issue bank cards. Now you need protocols for regularly circumventing that physical security and correctly using/distributing the information, making it in essence an information security problem again.
- adrianN 6y agoA QR code on paper has the benefit that it lasts centuries
- michaelmior 6y agoIt depends on what kinds of attacks you're worried about. One of the challenges with paper is that someone can take a photograph of the data and steal it without the physical secret ever leaving trusted hands.