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1363.3 Foundations. Mike Scott Hovav Shacham Terence Spies. Agenda. Mathematical foundations (Mike Scott) What fields, curves, and extensions to include Review of definitions section (section 5) Pairing primitives (Hovav Shacham) Algorithm building blocks Skeleton outline (Terence Spies)
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1363.3 Foundations Mike Scott Hovav Shacham Terence Spies
Agenda • Mathematical foundations (Mike Scott) • What fields, curves, and extensions to include • Review of definitions section (section 5) • Pairing primitives (Hovav Shacham) • Algorithm building blocks • Skeleton outline (Terence Spies) • Next Steps
Foundations Proposal • Fields • Characteristic p only (no 2 or 3) • Embedding degree • Even only • Curve families • Supersingular (k = 2) • Miyaji-Nakabayashi-Takano • Cocks-Pinch • Barretto-Naehrig • Brezing-Weng
Definitions Section • Review of included document
Pairing Primitives • Taxonomy of pairing based building blocks • Organization follows Boyen’s schema • Sufficient for implementing: • BF1, BB1, Waters, SK, BB2 IBE/KEM • BLS, Waters, BB2 Signatures • Description is general enough to capture any needed KEM / IBE variant, with CCA strengthening • Extensible to any id-based key agreements and id-based sigs needed
1363 Outline • Top level outline • Sanity check on what’s included and structure • Included techniques • KEM, IBE, signature, signcryption • Computational methods (miller’s algorithm) • In annex A
Next Steps • Build a clean list of candidates for each category • Make case for inclusion for each algorithm • Cleanly write out each algorithm in terms of the primitives