[Cryptography] Any S/MIME or PGP for normal people

[John Levine]

In article <CAAZXAeaZ5hw9muNHnsAqmAKjx3w5HNOHSbbmytnEoHKQxcFSZw at mail.gmail.com> you write:
>-=-=-=-=-=-
>> >try the enigmail extension for thunderbird
>>
>> How does that help key management?
>
>just use it and you'll see, I guess it has a user manual too

Hmmn.  I have GPG and Thunderbird installed on my Mac, so I downloaded
and installed Enigmail, it found my key from GPG, tried to send a
signed letter to one of my other addresses, and it said "Key not found
or invalid" and helpfully suggests that the (sub-)key might have
expired which it hasn't unless it's now 2024.

I guess I see.

R's,
John