On Wed, 30 Jan 2019 20:44, s...@300baud.de said: > On the other side i wish PGPfone would have been further developed. > I found it, way back then, pretty cool and super easy to use, compared > to PGP or GnuPG.
Please don't compare an online protocol with an offline (store+forward) protocol - they have very different semantics and purposes. With online or near-online protocols you can negotiate parameters and with a phone you even have a kind of second channel for verification purposes. Hard to see how to do this with backup tapes or data in mail queues and imap folders ;-) Shalom-Salam, Werner p.s. Regarding the OP: I would still recommend Ross Anderson's "Security Engineering" - it is far from being dedicated to snail mail but nevertheless has lot of real world security examples for many areas. -- Die Gedanken sind frei. Ausnahmen regelt ein Bundesgesetz.
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