Greco-Iberian alphabet lateral, and only one nasal sign. To represent the second rhotic rho gets an additional stroke. Eta is used instead of epsilon to represent /e/. The only letter not found in the modern variant of the Greek alphabet is sampi. The letter forms are petroglyphic since the writing surface (ceramic, stone, lead) affords angular glyphs with straight lines. Greco-Iberian alphabet The Greco-Iberian alphabet is a direct adaptation of an Ionic variant of a Greek alphabet to the specifics of the Iberian language, thus this script is an alphabet and lacks the distinctive characteristic of the rest of paleohispanic scripts that
The Alphabet Cipher The Alphabet Cipher Lewis Carroll published "The Alphabet-Cipher" in 1868, possibly in a children's magazine. It describes what is known as a Vigenère cipher, a well-known scheme in cryptography. While Carroll calls this cipher "unbreakable", Kasiski had published a volume describing how to break such ciphers from five years earlier, and Charles Babbage had secretly found ways to break polyalphabetic ciphers during the Crimean War. The piece begins with a tabula recta. ABCDEFGHIJKLMNOPQRSTUVWXYZ Each column of this table forms a dictionary of symbols representing the alphabet: thus, in the A column, the symbol is the same as the letter represented;