OS X MAIL SIGNATURE WITH LOGO HOW TO
OS X MAIL SIGNATURE WITH LOGO MAC OS X

However, key and trust management is very different: with GPG, this is done in a decentralized fashion, while S/MIME requires obtaining a certificate from a certificate authority. The public key can be used by anyone to encrypt messages or check signatures, while only the private key allows for decrypting messages encrypted with the matching public key, and creating signatures. Every user has two keys: a public and a private one. GPG and S/MIME us the same public key encryption as their underlying technology. (I've only tried this using iOS 5 on an iPhone 4, but I assume things work much the same on iPads and iPod touches.) The advantage of S/MIME is that it's built into Mail on the Mac and, as of last week, also in iOS. (There is currently a stable version available for Snow Leopard and an alpha version for Lion.)

OS X MAIL SIGNATURE WITH LOGO MAC OS X

Unfortunately, GPG is a pretty unwieldy system and GPGMail could take a very long time to be updated for a new Mac OS X release. In the past, we've written about GPGMail, a plug-in that lets Apple's Mail.app use GNU GPG encryption. (Big caveat: the nosy governments could still be in cahoots with the certificate authorities, so we make no promises there.) S/MIME also supports digital signatures, so you can know for sure who sent the message and that it wasn't changed in transit. Secure/Multipurpose Internet Mail Extensions (S/MIME) can secure your mail by encrypting a message at the source and only decrypting it once it's in the hands of the receiver. This helps make sure that nosy types with big WiFi antennas don't get to see your mail or passwords, but it doesn't keep your mail safe from equally nosy mail server admins-or subpoenas by nosy governments.īut not all hope is lost for e-mail. Ironically, such forged messages may travel to and from mail servers over encrypted connections.

OS X MAIL SIGNATURE WITH LOGO HOW TO

This reputation isn't completely undeserved: even today, anyone who knows how to bring up the preferences of a mail program can send out messages with any 'From:' address they please. As one of the oldest applications of the Internet, e-mail has never been known for having top-notch security.

Os x mail signature with logo