A Hybrid Polybius-Playfair Music Cipher

• DOI: 10.14257/ijmue.2015.10.8.19
• Publication Date: 2015-11-06T23:26:52Z
• Authors: Chandan Kumar; Sandip Dutta; Soubhik Chakraborty
• Keywords: Transposition cipher; ASCII

Music has a versatile dimensionality; it can be used to express feelings, emotions and also as communicable language. its attributes have been in cryptography steganography from long time. Musical symbols notes are replacement/substitution cipher. Using music cipher or cover media not only enhances the security of message but reduces chance detected an encoded ciphered message. This paper proposes hybrid Polybius Playfair which encodes into sequence musical notes. The key matrix is generated using Blum-Blum Shub generator. bigrams plain text first encrypted then individual character re-encrypted over simple substitution technique. set by appropriate number (here notes) for replacement. basic 5X5 structure extended 10X10 hold 95 prinTable characters ASCII set.