Cryptography

steganography is such a broad part of our lives we do not even notice the smallest applications, shopping on eBay or watching satellite television. I bet you even apply cryptology when you were in school and did not even agnise it. Ever write a message in song instead of letters? Each letter of the first principle correlated to its number position in the alphabet. The number sequence 3,16,25,12,20,15,12,15,7,25 equals cryptology. This is a form of cryptology in its most basic form. Websters lexicon defines Cryptography as : n.1.The act or art of report in code or secret characters; also, secret characters, codes or ciphers, or messages written in a secret code. 2.The attainment which studies methods for encoding messages so that they can be read lone(prenominal) by a person who knows the secret information ask for decoding, called the key; it includes cryptanalysis, the science of decoding encrypted messages without possessing the proper key, and has several former(a) branches; see for example steganography. [1] Cryptographies main purpose is to wrap up messages and information. unrivalled of the earliest forms of steganography was the rearranging of letters in messages. This was known as transportation ciphers.

A cipher is a system in which plain text, usually the letters, are transposed or substituted agree to a predetermined code. Another early form of cryptography was the substitution of letters. One cipher was named after Julius Caesar who was said to capture used a 3 letter shift. This involved modify a letter with another letter in the alphabet three positions away. Caesar used this method to communicate with his generals in wartimes. [2] Cryptography tries to protect the confidential nature in the communications of army leaders and diplomats. Cryptography was used by early Christians to hide some parts of their writings. One example, 666, the Number of the Beast from the reinvigorated Testament Book of Revelation, was thought to refer to the Roman emperor Nero. One of... If you want to get a full essay, array it on our website: Orderessay

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