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Succinct and Adaptively Secure ABE for Arithmetic Branching Programs from k-Lin
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- 1 Intro
- 2 Attribute-Based Encryption [SW05]
- 3 Adaptive IND-CPA Security
- 4 Framework of [LL20, Eurocrypt]
- 5 Framework of This Work
- 6 Arithmetic Key Garbling Scheme X
- 7 Inner-Product Functional Encryption X
- 8 1-ABE via AKGS and IPFE
- 9 Security: x then f
- 10 Hardwiring Less: Piecewise Security LL20, EC
- 11 Hardwiring Less: Special Simulation Structure
- 12 Modified Proof with Less Hardwiring
- 13 Replacing Function-Hiding: Simulation Security
- 14 Modified Proof with Simulation
- 15 Gradual Simulation Security
