You could do worse than to confuse the meanings of "code" and "cipher"—even cryptographers sometime use the terms as though they had the same meaning. There is, however, a definite distinction between ...

You can make a message secret in countless different ways. One common way is to use a substitution cipher, in which one letter is substituted for another. Another is to employ a transposition cipher, ...

Encryption is an essential tool for protecting data—but the technology can be a bit confusing. This ebook explains what encryption is, how it works, and why it’s so important. From the ebook: ...

Possibly, the earliest known cryptogram (or substitution cipher) is the Caesar Cipher, supposed to have been used by Julius Caesar. Possibly, the earliest known cryptogram (or substitution cipher) is ...

All the Latest Game Footage and Images from The Wake: Mourning Father, Mourning Mother The Wake is a record of past wounds opened at a three-day funeral. The journal is encoded with a simple ...