Skip to Main Content
As e-commerce new business, new products, new services areas and new management models are constantly emerging, the Internet payment services grow rapidly, and the Internet payment protocols have become increasingly prominent security issues. Payments of the current Internet protocol mostly use the MD5 or SHA algorithm for message signing. The traditional hash algorithms MD5 and SHA have increasingly shown their weaknesses and deficiencies. In order to improve security and performance, this paper constructs an AES-based payment protocol packet signatures.After calculating and testing, this new hash function has a very good hash character, confusion and diffusion properties and collision-resistant, which can effectively resist differential cryptanalysis and linear cryptanalysis, and has a fast execution speed.