Titlebook: Advances in Cryptology – EUROCRYPT 2024; 43rd Annual Internat Marc Joye,Gregor Leander Conference proceedings 2024 International Associatio

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978-3-031-58750-4International Association for Cryptologic Research 2024

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0302-9743 ations;.Part V: Multi-party computation and zero-knowledge;.Part VI: Multi-party computation and zero-knowledge; classic public key cryptography,.Part VII: Classic public key cryptography..978-3-031-58750-4978-3-031-58751-1Series ISSN 0302-9743 Series E-ISSN 1611-3349

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Robert Sempach,Christoph Steinebachon overhead. In particular, the sender’s communication is roughly double what is information-theoretically optimal..We show that OT extension with close to optimal sender communication is impossible, illustrating that the communication overhead is inherent. Our techniques go much further; we can sho

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Robert Sempach,Christoph Steinebachuantum computation fall short..In this paper, we obtain the first MPQC-PVIA protocol assuming post-quantum oblivious transfer and a classical broadcast channel. The core component of our construction is a new authentication primitive called . (AQA) that identifies the malicious sender with overwhelm

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Robert Sempach,Christoph Steinebachg with the same performance bounds as stated above. Moreover, Beimel et al. showed a two-server scheme with . bandwidth and . computation per query, and one with . cost both in bandwidth and computation—both schemes provide information theoretic security..In this paper, we show that assuming the exi

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