Customized Database Management based on Digital Signature

Of late, a variety of data associated with individuals and organizations have been connected to the cyberspace. This trend is expected to become more increased in the future. This paper proposes a scheme to manage the database in an open network, particularly picking up the case of financial data. We confirm that the financial data is highly required to be managed maintaining the authenticity of users and transaction contents. Then, in order to manage the financial data in more realistic situations, a data management scheme is suggested that the data with small amounts and high frequency is transacted in an Internet environment, while high-value and infrequent transactions are conducted under a conventional system managed by banks, even connecting them one another. The technology that underpins the security of the data in open networks is a digital signature based on a key generated by a personal device. We summarize the data management scheme by ensuring security based on digital signature and by connecting the data with the database in a private network according to the need from the general prospect.