BUILDING SECURITY BARRIERS BY MODIFIED ALGORITHMS IN BLOCKCHAIN TO PREVENT SQL INJECTION AND XSS
Joshi Padma N, N. Ravishankar, Raju M. B., Ravi N.Ch., N.Ch. Sai Vyuha · Indian Journal of Computer Science and Engineering · 2022
Now a days security of user credentials and confidential data of the user in database plays important role in web applications.Blockchain technology performs the hashing during the block generation process.MD5, SHA128, SHA256, and SHA512 are only few of numerous hashing algorithms.The use of SHA256 in Blockchain has been discovered.There are several aspects to consider while picking an appropriate hashing algorithm, including collision ratio, storage space, and time complexity.There are fewer collisions with SHA256 and it takes up less space.Modified MD5 is the hashing algorithm used in the suggested research.On the other hand, SHA256 takes more storage capacity, but traditional MD5 has a lower collision resistance.study's objective is to develop a faster and more collision-resistant version of the standard MD5 algorithm.Because of this, a system that is both secure and efficient is essential.This study tested the improved MD5 for storage capacity and collision probability, as well as a CPU clock cycle simulation.In terms of collision resistance, the improved MD5 results clearly exceed SHA256, MD5, and SHA1 while consuming less storage space and time.Moreover paper is also considering role of block chain to enhance security by preventing Sql Injection and XSS.