On the Study of Certified Originality for Digital Alteration Problem: Technology Developments of the Time Authentication

On the Study of Certified Originality for Digital Alteration Problem: Technology Developments of the Time Authentication

Masakazu Ohashi (Chuo University, Tokyo, Japan) and Mayumi Hori (Hakuoh University, Tochigi, Japan)
Copyright: © 2013 |Pages: 14
DOI: 10.4018/ijcwt.2013010102
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Abstract

In our modern clock-ruled culture, it is not too much to say that no society can exist unless based on “time”. Computers, which are the key device of an information society, are equipped with high precision clocks to synchronize their entire circuit function. In an electronic environment or digital society built on computers, recordkeeping relates inevitably to the time that is ticked away by the clocks embedded in the computers. Time is thus the infrastructure of this information society. The scope of discussion here focuses on some specific industries and applications for time-stamping technologies. We focused mainly on time-authentication (time-stamp). This study will be further refined step by step as their validity is verified in actual use.
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3. Digital Information Threats

Importance of digital information in the advanced network society is steadily growing. Information network infrastructure that guarantees security of transaction is vital to the growing opportunity of e-commerce. Secrecy of channel, authentication of document correspondent, and authenticity of exchanged documents are indispensable to security of transaction. Especially, securing digital documents’ authenticity is a serious agenda, as they are distributed easily and rapidly, and copied without difficulty.

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