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As XML is de facto becoming a standard for information representation and exchange in IT world, XML release methods are receiving intense attentions. The crucial requirement of XML release is scalability that affords to manage efficiently large number of users and great amounts of data. Although many existing approaches (e.g. famous SDI approach) have challenged to support XML release, because they have adopted the pre-configured key share approaches, they are not suitable for the dynamic environments characterized by the variant population, such as Peer-to-Peer, Ubiquitous and Ad-hoc networks. In this paper, we suggest a novel method that provides a more effective, reusable key share for dynamic environments by means of authorization, derive key and secret sharing scheme.