Post #4020703
2026-07-22 22:24 UTC
@TindrasGrove@infosec.exchange It seems to me the appropriate form of two factor for an in person event would be... an in person item. Like a physical piece of paper.
Replies (1)
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@pq1r@tech.lgbt 2026-07-23 10:57
@Epic_Null@infosec.exchange @TindrasGrove@infosec.exchange exactly, these systems existed for years. I was using s/key 2FA in the 1990s when smartphones were still science fiction - just a piece of paper with (pseudo-)random codes with serial numbers. The computer would tell me which serial number to use and I would type the code. They were not reusable, but by default I got a single page with 100 of these, good for 100 logins. It would be easy to add since open source implementations already exist. https://en.wikipedia.org/wiki/S/KEY