[Cryptography] Size of the PGP userbase?
Ralph Holz
ralph-cryptometzger at ralphholz.de
Sat Dec 14 06:11:35 EST 2013
Hi,
> Aha! So you could measure the ratio of PGP to S/MIME usage by message
> from that. You could also count the number of distinct users for each
> population.
Very hard to get unless you have a tap into a major MX. Much SMTP
traffic is SSL-secured today (which is a good thing), and thus the
standard monitoring setups, where the monitors sits near the border
router, cannot determine if there is a signature inside the traffic.
The significance of doing local measurements is very disputable.
Ralph
More information about the cryptography
mailing list