On Combining Encryption for Multiple Data Streams

A novel technique is proposed to combine the encryption of multiple data streams by generating a single encrypted stream, from which any of the original data streams can subsequently be decrypted. By transforming the original data onto random bases and using specially selected duals, a secure method is proposed for the simultaneous encryption and restricted decryption of data of any dimension. These special duals allow the simple addition of transformation coefficients while allowing perfect decryption of each data stream, which otherwise is not possible. Experimentation in encrypting different images and multiple videos are presented, demonstrating the applicability of our approach. We show that our encryption technique is not only easy to code but is highly secure. The proposed technique can be used in any application where data protection is desired from unauthorized users or where restricted access is required