ABSTRACT
Wireless sensor networks are self organized, autonomous, automatic discovery of services, highly scalable,
reliable, Infrastructure less service. Mainly applicable in the field of disaster, healthcare. The cryptographic
operations such as hash based schemes are more energy consuming (more byte transmitted indirectly consumes
more energy). To avoid the energy consumption over a cryptographic operations are design of Markle Tree Based
Authentication protocol for Lifetime enhancement in wireless sensor networks called MALLI, which uses a
famous structure of hash algorithm. To demonstrate that, the default hash tree and the security achieved by the
proposed method are more effective than the existing methodologies.
Keywords: - Authentication, Cryptography, Hash function, Security, Wireless Sensor Networks (WSN).