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 ...

The Voynich manuscript has long been shorthand for the unsolved and the unknowable, a late medieval codex filled with looping ...

Many cryptographers throughout history have claimed that a particular code is the most-unbreakable ever written. But does a rarely-used code, invented in 1917 and briefly employed during World War II, ...