MDC

MDC stands for MULTIPLE DATA COMPRESSION AND ENCRYPTION using Iterative techniques, It is the back-end process for every communication via internet. Whatsapp, Facebook, Viber and all the latest messangers have adapted this technique of encryption and decryption. Sometimes this is also reffered to as cryptography. In this technique first of all data is compressed before sending and compressed data is send with a key popularly know n as cypher key. On the other side it is retrieved, this techniques can be extended for sending images and videos also.

HOW MDC WORKS- The basic idea of MDC based project is to send the required characters simultaneously without wastage of space. For instance if we have to send a series of 38 characters that forms a sentence, we can re present these 38 characters just by 4 bytes, Instead of sending 8 byte code, we can send the represented sentence in 4 bytes. This process can provide compression upto 50%. The sent message is totally encrypted.

“SHE SELLS SEA SHELLS ON THE SEA SHORE.” contains 38 characters in which only 10 characters are distinct, s o a space in memory is created that stores these 10 distinct characters only. This memory space is called as MASTER ARRAY and is used as cypher key for retrieving the code at other side. This technique is called as 4b it compression. Similarly another sentences can be compressed easily with 3bit,4bit,5bit etc compression tec hnique.

Imagine if MDC wont worked, delay in retrieving the information at other side would have been very large.