SIGNCRYPTION BASED HYPER ELLIPTICAL CUREVE CRYPTOGRAPHY FRAMEWORK FOR KEY ESCROW IN MANET

Hyper elliptical curve cryptography is the prominent public key encrypto systems with practical approach to high level of security and shorter bit size of encryption. Public key encryption is a reliable cryptographic method for mobile adhoc networks. Still, some shortcomings of key management deter the reputation of its utilization in the real-time environment. One major disadvantage in the crucial necessity of elucidation is the key escrow problem. For secure group-based data transmission in the distributed environment, a secret key has to be shared among the users for the secured data transmission. For establishing efficient key distribution and management, a novel dynamic group secret key management is introduced. In this paper, we propose a signcryption based hyper elliptic curve cryptography framework for key escrow. Here the model of scheme is to divide a large group into several subgroups, each maintaining its subgroup secret keys to control the subgroup and managing many subgroups using Key Escrow Based Hyper Elliptic Curve Cryptography management algorithm. In the paper, a new methodology for collaborative key management using signcryption is implemented. The environment for mobile networks with the proposed algorithm named signcryption based Key Escrow HECC for Signcryption (KEHECCS) with a comparison of the conventional algorithms prevailing for MANETs is simulated. Compared to the existing approaches, KEHECCS demonstrates advanced key distribution features with better throughput efficiency without compromising on communication overhead and storage cost.