Multimedia Big Data Security

The 21st century is all about data where the main producers are Social Networks, Smartphones, Personal Medical Reports etc. In earlier times data volume used to be in MegaBytes and GigaBytes but in the present scenario PettaBytes or ZettaBytes of data is coming with a very high speed with different varieties from the above sources. Data and Security in today's time are complimentary in nature that needs to be addressed simultaneously and to provide security to such huge amount and variety of data, different encryption/decryption models are used. Multimedia data and its use have reached to gigantic level and as it belongs to the millions of user's, the security of data is the primary concern. So, there should be the ways through which one can ensure the best possible practice to enhance the security of Data. This paper focuses on various techniques to secure the multimedia data which existed in various types like image, audio, chat, videos and text and also this paper provides an overview of available multiple encryption schemes to secure the different forms of multimedia data and critically analyse them.