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I have tried a couple of howtos, but they seem to either be too out of date or just plain don't work (don't work for me, at least).

How do I sign and encrypt messages, as well as check integrity of received messages (and decrypt them if needed) in pine/alpine?

I tried pipeing (with "|") but the terminal doesn't seem to cooperate so that I can provide my passphrase.

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I've never used alpine, but since it is based on Pine; I would hazard a guess that this might be helpful:

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This link has gone dark – demure Sep 20 '14 at 1:34
Wayback machine to the rescue:… – Kirk Sep 21 '14 at 15:33

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