Research on Implementation Method of Key Management Based on Data Encryption Technology

Key management is a vital problem which must be solved when a database encryption system is designed and implemented. It is very difficult to solve key management. Key management is directly related to the performance of the whole encryption system and security of encrypted data. Key management is discussed by the author from the aspects of generation, distribution, storage, exchange and change. A concrete scheme of key management is proposed. The security of the scheme is discussed. The discussion result shows that it is a feasible key management scheme which can meet the security requirements of the database encryption system.