Towards Designing Greener Secured Hash Functions

In this work we study the energy consumption by MD2, a classical hash function from the algorithmic perspective. Our work is motivated by the frequent use of hashes in various computer security protocols, firewalls, and intrusion detection tools. To motivate our work, we measure power consumption by a common anti-virus software to perform various functions. We use a generic energy complexity model designed by Roy et. Al. To analyze the energy consumed by MD2. We then show how to reduce the energy consumption in MD2 by performing the block processing operations of MD2 in parallel.