Efficient Hardware Encryption Using Lightweight Process

Providing security by software encryption has many vulnerabilities. Hence, hardware cryptography is becoming more prominent. Hence, we propose a novel approach in lightweight hardware cryptography which provides higher throughput, faster execution, lower memory consumption and reliable security. We are using the hybrid encryption system which is a combination of PRESENT, HUMMING-BIRD, TWOFISH algorithm and GRP. In this paper we enhanced the existing cryptosystem with variable length key size and also keep the sender and receiver unaware of the generated key used for encryption, hence providing maximum security.