Security

Transport-Layer Issues in Information Centric Networks

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Executive Summary

Content to be transported over an Information Centric Networking (ICN) infrastructure can be very variable in size, from few bytes to hundreds of gigabytes. Therefore it needs to be segmented in smaller size data units, typically called chunks, in order to be handled by ICN nodes. A chunk is the basic data unit to which caching and security (e.g. encryption and signature) functions are applied. If the authors consider the overhead and the number of cryptographic operations to be performed by nodes, a good choice for the chunk size would be from hundreds of KBs up to few MBs. However, if the chunk size is bigger than the Maximum Transfer Unit of a link, chunks will be fragmented.

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