Modifying SHA-512 using Padding, Tree structure and Permutation Boxes

In this age of technology internet has become a day to day necessity. With this growing usage of web data it has become very important to design some secure way to save this web data from various types of attacks. One of the ways to resolve this problem is hashing. Hashing takes variable length input and converts it into a fixed length output using various hash algorithms like MD4, MD5 and SHA. Despite of all these advances in the field of hashing these algorithms still have some weaknesses and many attacks on these algorithms have been discovered. In this paper we propose a new way of hashing applied to the traditional algorithms. The basic concept is same but we have modified the few steps involved in the process. We combine padding using SALT, tree structure and permutation boxes applied together in these algorithms. This helps to provide an output that is more secure and complicated making it more resistant to various collision attacks. Possibility of collision attacks, rainbow table attacks and birthday attacks is also mitigated by the complex structure of the algorithm.