LITERATURE SURVEY ON RECENT AUDIO ENCRYPTION TECHNIQUES

Encryption of audio data is more complex with high computation complexity compared to text and documented data as audio signals are lengthy and has negative values which can be lost after some transformations. Encryption algorithms must meet the trade off between real time processing and security [8]. Most of the data encryption algorithm when applied to audio data resulted in low conversion efficiency. Hence there is a need for designing faster and secured encryption algorithms for audio data and this is the booming area for researchers. This is a survey paper about the study of various audio encryption techniques and its derivative to achieve various cryptographic security parameters.