RBJ20 Cryptography Algorithm for Securing Big Data Communication Using Wireless Networks S. Rajaprakash , N. Jaishanker , Chan Bagath Basha , S. Muhuselvan , A. B. Aswathi, Athira Jayan, and Ginu Sebastian Abstract In computer networks communication, the amount of data is continued to grow because of use of internet, smart phone, social network, web log data, etc. The volume of data communicated in this way is very large in size as well as complex. In general, the amount of data transferred in our apps is increasing, and it is now measured in peta-bytes and exa-bytes. Big data analytics with novel encryption tech- niques can provide new ways for businesses and government to analyse and commu- nicate unstructured data more efficiently. After analysing, it is necessary to store them with protection and it is necessary to authenticate these data sets. The tradi- tional security systems are unable to provide effective protection and authentication for these types of data sets. To overcome the above problem, we have proposed an effective cryptographic method called RBJ20 algorithm with matrix of order N × N it has four layers. The first layer has one step called column operations in the matrix. In the second layer, any integer sk is chosen as secret key and the matrix elements multiplied discriminant part should not be a whole number, concatenating the digits in the discriminusing sk. The third layer has five steps, namely choosing of any three prime numbers to form quadratic equation with condition that ant part, pairing of digits with two digits from left to right to act as cells of the matrix. Now each element will be treated as cells and then the cell elements will be swapped according to pairs, and this process is done for all the pairs. There are five stages in the fourth tier. Keywords RBJ20 · Prime numbers · Perfect numbers · Salsa20 · Chacha20 and AES S. Rajaprakash (B ) · C. B. Basha · S. Muhuselvan · A. B. Aswathi · A. Jayan · G. Sebastian Aarupadai VeeduInstitute of Technology, Chennai, India N. Jaishanker Misrimal Navajee Munoth Jain Engineering, Chennai, India © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2022 A. K. Nagar et al. (eds.), Intelligent Sustainable Systems, Lecture Notes in Networks and Systems 334, https://doi.org/10.1007/978-981-16-6369-7_46 499