PGP Info
The Problem with Email
The email protocols commonly used on the Internet suffer
from three basic problems:
- Anybody with a sniffer on your Internet connection can easily
read your email. This is because email is transmitted as plain
text. This is really baffling when you consider that the
Internet was originally designed for military use.
- An email message can be altered in transit or while sitting
on a server. You have no way to be sure that what you received is
actually what was sent to you.
- The worst problem, in my opinion, is that anybody can sign
your name to their email. It is easy to do with almost any email
program. You can put any address you want right there in the
"From:" field. This is often used by viruses and scammers for
malicious and fraudulent purposes. It actually upsets me to know
that anybody can claim to be sending an email from one of my
addresses.
The Solution: PGP
There is a solution to all of these problems and it is called PGP (for
Pretty Good Privacy). It solves the problems like this:
- Messages can be encrypted so that only someone with the private
key can decrypt it. To everyone else the message looks like
gibberish.
- A "digital signature" can be added to a message. This is a way
to prove that none of the contents of the message have been altered
from the time that they were signed by someone with the secret
(private) key.
- The digital signature also solves the problem of identifying who
sent a message, because only the person with the private key could
have signed it.
I think that the problems listed above are really big problems, and I think
that everyone should use PGP (or any program such as GPG, which conforms to the
same standard) until the email protocols themselves get fixed.
My Public Key
Here is my public key.
This is the fingerprint: 1FF6 9E45 A453 96D3 F663 0032 9400 312D 4FC0 6427
Free Software
Sadly, the PGP corporation no longer offers a free version.
The best bet now for Windows users who dont want to pay anything
is to use GPG,
Thunderbird, and
Enigmail. It may take you a couple of days
to get everything set up, but its worth it.
Now you can send me secret messages! Isn't that cool!