Sentence examples for earlier ciphers from inspiring English sources

He explicitly differentiates the Vernam cipher from earlier ciphers: "A running key cipher is a Vernam type system where, in place of a random sequence of letters, the key is a meaningful text.

Cryptographic systems studied will include: early historical ciphers; the Enigma machines of WWII; modern public channel cryptography.

Fascinating fact: One of the earliest German cipher machines was named Enigma after Elgar's Variations.

While Caesar's was the first recorded use of this scheme, other substitution ciphers are known to have been used earlier.

Since Bacon was knowledgeable about ciphers, early Baconians suspected that he left his signature encrypted in the Shakespeare canon.

There are other similar ciphers.

The earliest sort of cipher was used by the Greeks, and involved creating a grid of letters that corresponded to numbers, then using the numbers to create messages.

And it got its name because it was itself based on an earlier device to crack the Enigma ciphers called the Bomba developed by Polish cryptologists.  .

In the early history of the United States, codes were widely used, as were book ciphers.

The rail fence is the simplest example of a class of transposition ciphers, known as route ciphers, that enjoyed considerable popularity in the early history of cryptology.

The characters are ciphers, and Von Trier veers wildly between the visual beauty of his early films and the digital blur of his recent work, while Handel blasts majestically on the soundtrack.