SECURITY FEATURES AND VULNERABILITIES, By Phil "Whatever you do will be insignificant, but it is very important that you do it." -Mahatma Gandhi. Why I wrote PGP It's personal. It's private. And it's no one's business but yours. You may be planning a political campaign, discussing your taxes, or having a secret romance. Or you may be com- municating with a political dissident in a repressive coun- try. Whatever it is, you don't want your private electronic mail (e-mail) or confidential documents read by anyone else. There's nothing wrong with asserting your privacy. Privacy is as apple-pie as the Constitution. [...] Perhaps you think your e-mail is legitimate enough that encryption is unwarranted. If you really are a law-abiding citizen with nothing to hide, then why don't you always send your paper mail on postcards? Why not submit to drug testing on demand? Why require a warrant for police searches of your house? Are you trying to hide something? If you hide your mail inside envelopes, does that mean you must be a subver- sive or a drug dealer, or maybe a paranoid nut? Do law- abiding citizens have any need to encrypt their e-mail? [...]