What is cryptography? Cryptography is the process or skill of communicating in or deciphering secret writings. Its name stems from the Greek kryptós, meaning "hidden" and gráphein meaning "to write".
I remember in third grade science class, my teacher asked for a helper who had a watch with a second hand. I volunteered because my watch had two hands, the first one and the second one. I was real...
How secure is the Internet for sending sensitive information? Learn all about encryption, authentication, hash algorithms and more.
Today EFF and the Tor Project are launching a public beta of a new Firefox extension called .
Let's say that you need to send your friend a message, but you don't want another person to know what it is. You can use a full-blown encryption tool, such as PGP. If the message isn't that important or if it is intended to be decrypted by hand, yo...