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

When was cryptology first used?

The first known evidence of the use of cryptography (in some form) was found in an inscription carved around 1900 BC, in the main chamber of the tomb of the nobleman Khnumhotep II, in Egypt.

Who developed 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.