Abstract
This research work discusses a file-type-independent cryptosystem using the conversion of Cartesian and Polar coordinate systems in three dimensions. This is an advancement to PythoCrypt (IJESM, Vol-3,Issue-2, 48-51,2013) where a new algorithm was discussed that can be effectively used to provide security to medical images (IEEE, Proceedings of ICe-HNAS-9, 244 – 247, 2007) or files that have a small region or block of interest (JMBE, Vol- 27, Issue-3,144-149, 2007)(Springer.Link, FAW-1 proceedings, 62-73,2007). The usage of geometrical objects for encryption is still young and an attempt was made to employ an enhanced method of PythoCrypt to encrypt different file types. The present research work explores the inter-operability of the two coordinate systems as a basis for a cryptosystem. The work proposes a crypto-system with considerable security with one requirement; the use of a secure channel for key exchange.