![]() ![]() In this paper we propose a strategy for encryption of any instant message utilizing the Indian and western music notes. ![]() Not seldom will the contents need further decoding. Utilization of music notes in encoding any message isn't in wide use. It uses a combination of a Polybius square and transposition of fractionated letters to encrypt. Utilizing these notes as the fundamental notes, music is created. The western music notes depend on the seven keys C, D, E, F, G, A, B. Our ordinary Indian music is made of the seven keys Sa, Re, Ga, Ma, Pa, Dha, Ni. Any melodic note comprises of seven fundamental keys. The fundamental objective of the melodic cryptography is to produce distinctive melodic cryptograms. Melodic images and melodic notes have been utilized as the replacement figure. Although useful as a form of enciphering, it is not par cularly strong. It has been used by many cultures throughout history in dierent sizes depending on the length of the alphabet (for example the Japanese used a 7 × 7 grid). A part of information is covered up inside a melodic note and ships off the objective. This is called the Polybius Square, since it was rst described by Polybius in his Histories in around 150BC. Music notes have been utilized in the field of transcription and cryptography in early days. As shown in the unordered map and char array, the numbers correspond to the row and column on a 5x5 square: The getChoice() function simply gets the e or d character to choose encryption or decryption. Music can be utilized as a language of correspondence. The Polybius square is a simple way to assign characters numbers, and then 'encrypt' and 'decrypt' based off of those numbers. Music and its trademark have been utilized in various region of world. Traditional methodologies applied to melodic cryptography utilized basic replacement figure which produces melodic arrangements. The ciphertext above represents "SIR CHARLES WHEATSTONE" encrypted using the key PLAYFAIR.The craft of scrambling messages utilizing music is named as Musical cryptography and it utilizes predefined set of notes and set of rules for making melodic pieces which thus are melodic cryptograms. In ancient Greece, Polybius, a historian and scholar of the 2nd century BC developed a system for reducing the letters of the alphabet to simple pairs of numbers, using a device now known as the Polybius square or checkerboard. Playfair ciphers, and variants of it, are occasionally used in CTFs, geocaching mystery caches, and logic puzzles. The Playfair cipher was used during World War I, but is no longer used by military forces since it can easily be broken by modern computers.See here for a more comprehensive description. If they are same letter, addĪ padding letter (for instance X) or pick the letters on row down and one step to the right. The Polybius Square Encoder / Decoder software was designed with the help of the Python programming language as a small script that allows you to encipher / decipher a plaintext / ciphertext. If they form a row, pick the letters one step to the right. If they form a column, pick the letters one row down. If they form a rectangle, pick letters from the same rows but other corners. ![]() The grid is formed by first taking a code word (with duplicate letters removed) and then adding any alphabet characters missing.Ī digraph is transformed by looking up the two characters in the grid.Since there are only 25 spots, one character has to be omitted (for instance J, which is replaced by I). A grid of 5x5 letters is used for encryption.This makes frequency analysis much harder, since there are around 600 combinations instead of 26. Instead of encrypting single letters, the Playfair cipher encrypts pairs of letter (digrams or bigrams).It was invented in 1854 by Charles Wheatstone, but named after lord Playfair after he promoted it heavily.It was the first practical polygraph substitution cipher in use. The Playfair cipher is a classic form of polygraphic substitution cipher. ![]()
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