3 ms·
> since a regular user on a not-so-powerful mobile device needs to be able to compute the hash in a reasonable time I would assume this would be implemented at
by 13of40 11y ago
> since a regular user on a not-so-powerful mobile device needs to be able to compute the hash in a reasonable time
I would assume this would be implemented at the SMTP level, so when I connect to gmail with my phone, it's their servers that need to generate the hash before they send it through SMTP.
- throwaway7767 11y agogmail handles a lot of mail, which again puts an upper bound on how difficult the puzzle will be. I don't think this changes anything. And if you make it too hard, "free" (ad-supported) email will no longer be possible because the costs are simply too high for the financial return.