English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The era of big data has promoted the vigorous development of many industries,boosting the full potential of holistic data-driven analysis. Hadoop has becomethe primary choice for mainstream platforms used by stakeholders to process bigdata. Thereafter, the security of Hadoop platform has arisen tremendousattention worldwide. In this paper, we mainly concentrate on enforcing accesscontrol on users to ensure platform security. First, we leverage access proxyintegrated with attribute-based access control (ABAC) model to implementfront-end authorization, which can fully reflect and cope with the flexiblenature of the complex access control process in Hadoop platform, as well as canrelease back-end resources from complex authorization process through accessproxy. Moreover, in order to ensure the fine-granularity of authorization, theaccess proxy maintains a list composed of trust threshold value provided byeach resource according to its importance. The access proxy interacts with theblockchain network to obtain the user's trust evaluation value, which serves asan important basis for dynamic authorization determination. More specifically,blockchain network works together on-chain and off-chain modes. The user'shistorical behavior data is stored off-chain, and the corresponding hash valueis anchored on-chain. Consequently, the user's trust value is evaluated basedon his historical behavior stored on the blockchain platform. Meanwhile, theauthenticity of user behavior data can be guaranteed, thereby ensuring thereliability of trust assessment results. Our experiment demonstrates that theproposed model can dynamically and flexibly adjust user permissions to ensurethe security of the platform, while time and money are consumed within areasonable range.

TDACS: an ABAC and Trust-based Dynamic Access Control Scheme in Hadoop