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An additive randomized encoding (ARE) is a new cryptographic notion introduced by Halevi et al. (CRYPTO 2023) that has connections to other cryptographic notions, such as non-interactive secure computation in the shuffle model and best-possible information-theoretic MPC. In this paper, focusing on information-theoretic security, we tackle some open problems left by Halevi et al., and obtain the following results:

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Negative Results on Information-Theoretic Additive Randomized Encodings

  • 会议论文

  • 发表日期：

    2025年

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  • Keitaro Hiwatashi

摘要

An additive randomized encoding (ARE) is a new cryptographic notion introduced by Halevi et al. (CRYPTO 2023) that has connections to other cryptographic notions, such as non-interactive secure computation in the shuffle model and best-possible information-theoretic MPC. In this paper, focusing on information-theoretic security, we tackle some open problems left by Halevi et al., and obtain the following results: