[Cryptography] What ever happened to end-to-end email encryption?

[Christian Huitema]

On 8/21/2021 10:41 AM, Viktor Dukhovni wrote:

>>     - Even individual users need middleboxes to scan for spam and other
>>     services (such as maybe warning about dangerous links)
> Yes.

Maybe. I receive lots of spam, but so far I have not received any 
encrypted spam. That would not be hard, spammers could retrieve my PGP 
key from a number of key databases. But they don't bother, and I wonder 
why. Is it because the users of something like PGP are somehow so smart 
that the spam  will immediately be rejected? Or is it because as PHB 
says, it would reach maybe just 0.05% of the global email market, and 
that would not be profitable? But if the latter, wouldn't encrypted 
email be a wonderful channel for a spear-phishing attack?

-- Christian Huitema

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