Anti-collision enhancement of a SHA-1 digest using AES encryption by LABVIEW

A series of latest papers have pretended collision attacks on publicly used hash functions, including the widely published SHA-1 algorithm. To estimate this threat, the natural response has been to strengthening the system to overcoming the weakness that make the system apt to collision. The SHA-1 hash function used in many fields of security system such as digital signature, tamper detection, password protection and so on. SHA-1 is very important algorithm for integrity and authentication realization, SHA-1 is a one way algorithm to produce hash code of any message with 160 random hash bits, which cannot be reversible. AES with SHA-1 algorithm produce encrypted code that can be reversible to achieve confidentiality. From the implementation and simulation results of AES based on SHA-1 algorithm obtained in Lab VIEW project show simplicity in modelling hash function algorithm generating hash codes encrypted by AES method.