Light Weight Cryptography and Homomorphic Encryption for IOT

Cryptographic techniques like AES are available for offering better security, but the current implementa tions are not adequate enough to support the constrained architecture. This work is a study of the requirement of Light Weight Cryptography and a combined authentication and confidential scheme for IoT. A comparative analysis and the requirement of homomorphic encryption for centralized storage have also been carried out. The homomorphic encryption has proved its advancement and applicability in the sensor world. Homomorphic encryption is valuable for automatic sensor environment, but in a constrained system like IoT, an optimized method for homomorphic implementation is required.