Efficient key management methods for symmetric cryptographic algorithm

Key management is major issue in cryptographic algorithms. Key management includes key generation and sharing of secret key between sender and the receiver. The generated key should be random in nature. The sharing of key through secure channel is also a major research area. In this paper, different key generation methods are considered for a symmetric algorithm. In the first method, lfsr based key is used. In the second method, hash function method is used for key generation. The cryptographic system with above key generation techniques is modelled using hardware description language using VIVADO software.