Designated Verifier Signature with Claimability
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- YAMASHITA Kyosuke
- Osaka University National Institute of Advanced Industrial Science and Technology (AIST)
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- HARA Keisuke
- National Institute of Advanced Industrial Science and Technology (AIST) Yokohama National University
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- WATANABE Yohei
- The University of Electro-Communications Japan Datacom Co., Ltd.
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- YANAI Naoto
- Osaka University Japan Datacom Co., Ltd.
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- SHIKATA Junji
- Yokohama National University
Abstract
<p>This paper considers the problem of balancing traceability and anonymity in designated verifier signatures (DVS), which are a kind of group-oriented signatures. That is, we propose claimable designated verifier signatures (CDVS), where a signer is able to claim that he/she indeed created a signature later. Ordinal DVS does not provide any traceability, which could indicate too strong anonymity. Thus, adding claimability, which can be seen as a sort of traceability, moderates anonymity. We demonstrate two generic constructions of CDVS from (i) ring signatures, (non-ring) signatures, pseudorandom function, and commitment scheme, and (ii) claimable ring signatures (by Park and Sealfon, CRYPTO'19).</p>
Journal
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- IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
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IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E107.A (3), 203-217, 2024-03-01
The Institute of Electronics, Information and Communication Engineers
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Details 詳細情報について
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- CRID
- 1390299318867332096
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- ISSN
- 17451337
- 09168508
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
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- Abstract License Flag
- Disallowed