# The History of Cryptography Essay

1420 Words 6 Pages
Cryptography is the use of codes and ciphers to protect secrets and has been around for centuries. It has its beginnings in ancient Egypt and has played a role in every part of history to its current role in protecting communications across today’s computer networks. In classical times cryptology was not as sophisticated as it is today, but it had its uses for that time in history. The early Greeks used what was called the Scytale Cipher. It was used between the Greek and Spartan armies and was very popular for its ease of use and the ability to translate a message. (“The Scytale Cipher”, n. d.) The Scytale cipher is known as a transposition cipher and works by taking a roll of paper or leather, in the case of the Greeks, and wrapping …show more content…
Cryptography is the use of codes and ciphers to protect secrets and has been around for centuries. It has its beginnings in ancient Egypt and has played a role in every part of history to its current role in protecting communications across today’s computer networks. In classical times cryptology was not as sophisticated as it is today, but it had its uses for that time in history. The early Greeks used what was called the Scytale Cipher. It was used between the Greek and Spartan armies and was very popular for its ease of use and the ability to translate a message. (“The Scytale Cipher”, n. d.) The Scytale cipher is known as a transposition cipher and works by taking a roll of paper or leather, in the case of the Greeks, and wrapping it around a cylinder. The user then proceeds to write the message across the cylinder by placing a letter on each wrap of the paper. This continues until the message is complete. Once complete the paper is unwrapped and the encryption is complete. In order to be decrypted at the other end all that is needed is a cylinder of the same size. (“The Scytale Cipher”, n. d.) The Romans also used ciphers, most notably the Caesar Cipher. The Caesar Cipher is typically a wheel device with an inner and outer wheel both printed with the alphabet. The Caesar cipher works by substituting a letter of the alphabet with another letter three positions down. This is one of the easiest codes to break since there are only 25 possible solutions. (“Caesar Cipher