| Summary: | 碩士 === 淡江大學 === 資訊管理學系碩士班 === 101 === Commercially offering platforms are belong to Closed-End system at present, but with the popularization of smartphones and Tablet PCs,the consumers prefer using the same software in multiple platforms, cross-platform sharing will be a mainstream in the future, in the near future, cross-platform sharing of digital content will also be established within the family, leading the world into a new digital home era. So ,how to go through effective way to protect digital content to prevent illegal activities and improve security will be an important issue at this stage.
In previous related study, the proposed protocol are only improve the problem on file transfering of Closed-End, mainly in the recognition of digital right trading mechanism, but didn’t consider security.Therefore, we propose CUHO protocol, in addition to the digital rights to share the purpose, taking into account signaling the importance of safety, the use of cryptography on a challenge-response combined with hash lock method,each round communications authentication information added random number and the timestamp for the computing our scheme also supports untraceability and to avoid replay attacks to increase security.
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