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Published in:
2008 | OriginalPaper | Chapter
Efficient One-Round Key Exchange in the Standard Model
Authors : Colin Boyd, Yvonne Cliff, Juan Gonzalez Nieto, Kenneth G. Paterson
Published in: Information Security and Privacy
Publisher: Springer Berlin Heidelberg
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We consider one-round key exchange protocols secure in the standard model. The security analysis uses the powerful security model of Canetti and Krawczyk and a natural extension of it to the ID-based setting. It is shown how KEMs can be used in a generic way to obtain two different protocol designs with progressively stronger security guarantees. A detailed analysis of the performance of the protocols is included; surprisingly, when instantiated with specific KEM constructions, the resulting protocols are competitive with the best previous schemes that have proofs only in the random oracle model.