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Overview:

Users regularly exchange apparently innocuous data files using email and ftp. While the users view these data as passive, there are situations when they are interpreted as code by some system application. In that case the data become "Active". Some examples of such data are Java, JavaScript and Microsoft Word attachments, each of which are executed within the security context of the user, allowing potentially arbitrary machine access. The structure of current operating systems and user applications makes solving this problem challenging. The paper proposes a new protection mechanism to address active content, which applies fine-grained access controls at the level of individual data objects. All data objects arriving from remote sources are tagged with a non-removable identifier.

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Format:PDFSize:79 KB
Date:Jan 2008
Pages:8

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