Network Oblivious Transfer via Noisy Channels: Limits and Capacities
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866909971389612032 |
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| author | Aghaee, Hadi Akhbari, Bahareh Deppe, Christian |
| author_facet | Aghaee, Hadi Akhbari, Bahareh Deppe, Christian |
| contents | In this paper, we study the information-theoretic limits of oblivious transfer via noisy channels. We also investigate oblivious transfer over a noisy multiple-access channel with two non-colluding senders and a single receiver. The channel is modeled through correlations among the parties, who may be honest-but-curious or, in the case of the receiver, potentially malicious. We first revisit the information-theoretic limits of two-party oblivious transfer and then extend these results to the multiple-access setting. For honest-but-curious participants, we introduce a multiparty protocol that reduces a general multiple access channel to a suitable correlation model. In scenarios with a malicious receiver, we characterize an achievable oblivious transfer rate region. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_17021 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Network Oblivious Transfer via Noisy Channels: Limits and Capacities Aghaee, Hadi Akhbari, Bahareh Deppe, Christian Information Theory Cryptography and Security In this paper, we study the information-theoretic limits of oblivious transfer via noisy channels. We also investigate oblivious transfer over a noisy multiple-access channel with two non-colluding senders and a single receiver. The channel is modeled through correlations among the parties, who may be honest-but-curious or, in the case of the receiver, potentially malicious. We first revisit the information-theoretic limits of two-party oblivious transfer and then extend these results to the multiple-access setting. For honest-but-curious participants, we introduce a multiparty protocol that reduces a general multiple access channel to a suitable correlation model. In scenarios with a malicious receiver, we characterize an achievable oblivious transfer rate region. |
| title | Network Oblivious Transfer via Noisy Channels: Limits and Capacities |
| topic | Information Theory Cryptography and Security |
| url | https://arxiv.org/abs/2501.17021 |