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Vinod Vaikuntanathan

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Correlation-Intractable Hash Functions via Shift-HidingITCS 20222022-01-31
Gives a simple self-reduction showing that a shift-hiding PRF that is one-way on the zero output yields correlation-intractable hash families for many…
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Lattice-Inspired Broadcast Encryption and Succinct Ciphertext-Policy ABEITCS 20222022-01-31
Constructs a lattice-inspired candidate that aims for polylogarithmic ciphertext size for broadcast encryption and ciphertext-policy ABE, built by flipping a…
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Lattices and Encrypted ComputationLattices: Algorithms, Complexity, and Cryptography Boot Camp 20202020-01-21
Shows a concrete path from LWE to practical fully homomorphic encryption: tensor ciphertexts to multiply, use bit-decomposition to do scalar products, and…
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Attribute-based Encryption for CircuitsThe Mathematics of Modern Cryptography2015-07-06
Constructs an attribute‑based encryption scheme from lattices that handles arbitrary Boolean circuits under a sub‑exponential LWE assumption, gives selective…
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The Mathematics of Lattices ICryptography Boot Camp 20152015-05-18
Introduces lattices as integer linear combinations and frames the key problems: SVP (shortest nonzero vector) and SIVP (short independent vectors). States…
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The Mathematics of Lattices IICryptography Boot Camp 20152015-05-18
Defines short integer solutions (SIS) and decisional LWE and gives the concrete reductions: SIS yields collision-resistant hashes, LWE (search ↔ decisional up…
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