Cryptography :: Exploratory Essays

CryptographyCryptography is the science of preparing communication mean to be intelligible only to the person possessing the key or system of developing the hidden meaning by cryptoanalysis using apparently unlogical text (Encarta Encyclopedia). The movie mercury rising is a good exercise of steganography. Its about a little male child who is autistic. The little son faecal matter do puzzles such as steganography easily. One mean solar twenty-four hour period while on the computer the boy cracks a highly incommunicative government code. The governmental agency wants the young boy found and killed for ginger nut the code it took years to write. Cryptography started a long, long time agonene with Julius Caesar. When he wanted only his people to know something he employ cryptography. He did this by replacing As with Ds, Bs with Es, and so on down the alphabet. This was known as shift by 3, for obvious reasons. The Jewish writers also use a code of their own called Atbash. T hey did it by reversing the alphabet, they use the last garner of the alphabet in place of the first, the next to last for the second, and so on. Atbash is exemplified in the Bible, Jeremiah 2525, where Sheshech is written for Babel (Babylon). As you whoremonger see, cryptography has been use for legion(predicate) a(prenominal) years and is continuing to become more high tech. The term cryptography is sometimes restricted to the use of ciphers, that is, to systems of transposing the earns of plain text (unencrypted) messages, or to methods involving the substitution of other earns or attributeizations for the original letters of a message. And to various combinations of such methods, all according to pre set systems. Ciphers of various types have been and can be devised. All of them fall into to one of two categories, transposition and substitution. In transportation ciphers, the message is usually written, without word divisions. They are rows of letters place in a rectan gular block. The letters are then commute in a prearranged order such as by upright piano columns, diagonals, or spirals. There are two types of ciphers, simple and complex. In a simple substitution cipher is particular letter or symbol is substituted for each. In a multiple substitution (polyalphabetic) ciphers, a keyword of number is employed. And in more complicated polyalphabetic systems, the letters of the keyword may tell which of a serial publication of mixed substitution alphabets is to be used to encipher each letter of the message.Cryptography Exploratory EssaysCryptographyCryptography is the science of preparing communication think to be intelligible only to the person possessing the key or method of developing the hidden meaning by cryptoanalysis using apparently disconnected text (Encarta Encyclopedia). The movie mercury rising is a good eccentric of cryptography. Its about a little boy who is autistic. The little boy can do puzzles such as cryptography easily. One day while on the computer the boy cracks a highly closemouthed government code. The governmental agency wants the young boy found and killed for gingersnap the code it took years to write. Cryptography started a long, long time ago with Julius Caesar. When he wanted only his people to know something he used cryptography. He did this by replacing As with Ds, Bs with Es, and so on down the alphabet. This was known as shift by 3, for obvious reasons. The Jewish writers also used a code of their own called Atbash. They did it by reversing the alphabet, they used the last letter of the alphabet in place of the first, the next to last for the second, and so on. Atbash is exemplified in the Bible, Jeremiah 2525, where Sheshech is written for Babel (Babylon). As you can see, cryptography has been used for many years and is continuing to become more high tech. The term cryptography is sometimes restricted to the use of ciphers, that is, to methods of transposing the letters of plain te xt (unencrypted) messages, or to methods involving the substitution of other letters or symbols for the original letters of a message. And to various combinations of such methods, all according to prearranged systems. Ciphers of various types have been and can be devised. All of them fall into to one of two categories, transposition and substitution. In transportation ciphers, the message is usually written, without word divisions. They are rows of letters arranged in a rectangular block. The letters are then change by reversal in a prearranged order such as by just columns, diagonals, or spirals. There are two types of ciphers, simple and complex. In a simple substitution cipher is particular letter or symbol is substituted for each. In a multiple substitution (polyalphabetic) ciphers, a keyword of number is employed. And in more complicated polyalphabetic systems, the letters of the keyword may tell which of a serial publication of mixed substitution alphabets is to be used to e ncipher each letter of the message.