When was cryptography invented? It probably started in Egypt around 1900 BC, where a scribe used unexpected hieroglyphic characters instead of usual ones.

Who started cryptology?

Thus, the Greeks were the inventors of the first transposition cipher. During the 4th century bc, Aeneas Tacticus wrote a work entitled On the Defense of Fortifications, one chapter of which was devoted to cryptography, making it the earliest treatise on the subject.

What is cryptology in history?

█ JUDSON KNIGHT. Cryptology is the study of both cryptography, the use of messages concealed by codes or ciphers, and cryptanalysis, or the breaking of coded messages.