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Non-Symbolic Fragmentation

Ashman, Helen; Coupe, Henry; Smith, Phil; Neville-Smith, Martin; Gilbert, Martyn


Helen Ashman

Henry Coupe

Phil Smith

Martin Neville-Smith

Martyn Gilbert


This paper reports on the use of non-symbolic fragmentation of data for securing communications. Non-symbolic fragmentation, or NSF, relies on breaking up data into non-symbolic fragments, which are (usually irregularly-sized) chunks whose boundaries do not necessarily coincide with the boundaries of the symbols making up the data. For example, ASCII data is broken up into fragments which may include 8-bit fragments but also include many other sized fragments. Fragments are then separated with a form of path diversity. The secrecy of the transmission relies on the secrecy of one or more of a number of things: the ordering of the fragments, the sizes of the fragments, and the use of path diversity. Once NSF is in place, it can help secure many forms of communication, and is useful for exchanging sensitive information, and for commercial transactions. A sample implementation is described with an evaluation of the technology.


Ashman, H., Coupe, H., Smith, P., Neville-Smith, M., & Gilbert, M. (2002). Non-Symbolic Fragmentation.

Conference Name IEEE Internatioanl Conference on Internet Technology and Applications
Publication Date Jan 1, 2002
Deposit Date Nov 14, 2005
Publicly Available Date Oct 9, 2007
Peer Reviewed Peer Reviewed
Public URL


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