CERIAS Tech Report 2003-06 PROVABLE ACCESS ACCOUNTING FOR CONTENT DISTRIBUTION NETWORKS
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چکیده
One common revenue model in Content Distribution Networks (CDN), requires the CDN operator to provide access statistics (e.g. hits, transferred bytes) to the content provider, who in turn is expected to deliver payment dependent on these reported values. An implicit assumption of self-regulated truthfulness of the CDN operator governs this process. The content provider has to trust that the content distributor provides accurate numbers and does not artificially “inflate” them. This type of one-sided accounting is not tolerated well in two-party business interactions. An independent accuracy proof is preferred. Here we present a provable secure verification mechanism for access accounting in this framework. Our solution exploits one of the common enabling mechanisms of CDN location awareness, dynamic DNS. We discuss several variations and analyze associated attacks.
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تاریخ انتشار 2003