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This paper reports a run-time reconfigurable co-processor for scalar multiplication in elliptic curve cryptography. By reconfiguration, the co-processor can support various finite field orders and hence, different security levels. This is a contribution to solve the current interoperability problems in elliptic curve cryptography. We report the co-processor hardware organization and the cost in terms of area and speed of the reconfigurable solution compared to a static implementation.
Date of Conference: 21-25 Sept. 2009