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Oct 7, 2021 at 7:34 history edited CommunityBot
replaced https://tools.ietf.org/html/rfc with https://www.rfc-editor.org/rfc/rfc
Dec 19, 2020 at 21:00 history tweeted twitter.com/StackCrypto/status/1340401540012630018
Oct 25, 2020 at 23:09 vote accept Brennino
Oct 22, 2020 at 2:28 comment added user30713 I'd consider both to be more than secure enough for your specification; much more than 5 years in fact. But to choose between them: I'd avoid encryption when a hash will do just on general principles. You have a 15-minute window so as long as the m is rounded down to the nearest 15-minute mark, and both sides have decent clocks, you don't need the ability for the receiver to decrypt the incoming message.
Oct 18, 2020 at 15:54 answer added fgrieu timeline score: 2
Oct 18, 2020 at 15:33 history edited fgrieu CC BY-SA 4.0
Polish
Oct 18, 2020 at 3:26 review First posts
Oct 18, 2020 at 13:33
Oct 18, 2020 at 3:26 history asked Brennino CC BY-SA 4.0