Single-Use Delegatable Signatures Based on Smart Contracts
| العنوان: | Single-Use Delegatable Signatures Based on Smart Contracts |
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| المؤلفون: | Thomas Lorünser, Stephan Krenn |
| المصدر: | The 16th International Conference on Availability, Reliability and Security ARES |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | FOS: Computer and information sciences, 021110 strategic, defence & security studies, Immutability, Computer Science - Cryptography and Security, Delegation, Smart contract, business.industry, Computer science, media_common.quotation_subject, 0211 other engineering and technologies, 020206 networking & telecommunications, Cryptography, 02 engineering and technology, Computer security, computer.software_genre, Signature (logic), 0202 electrical engineering, electronic engineering, information engineering, Solidity, Use case, business, computer, Implementation, Cryptography and Security (cs.CR), media_common |
| الوصف: | Delegation of cryptographic signing rights has found many application in the literature and the real world. However, despite very advanced functionalities and specific use cases, existing solutions share the natural limitation that the number of usages of these signing rights cannot be efficiently limited, but users can at most be disincentivized to abuse their rights. In this paper, we suggest a solution to this problem based on blockchains. We let a user define a smart contract defining delegated signing rights, which needs to be triggered to successfully sign a message. By leveraging the immutability of the blockchain, our construction can now guarantee that a user-defined threshold of signature invocations cannot be exceeded, thereby circumventing the need for dedicated hardware or similar assistance in existing constructions for one-time programs. We discuss different constructions supporting different features, and provide concrete implementations in the Solidity language of the Ethereum blockchain, proving the real-world efficiency and feasibility of our construction. The 16th International Workshop on Frontiers in Availability, Reliability and Security (FARES 2021) |
| اللغة: | English |
| ردمك: | 978-1-4503-9051-4 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d4c3c334bfa66be543ae6e309a376b7 http://arxiv.org/abs/2210.02826 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....2d4c3c334bfa66be543ae6e309a376b7 |
| قاعدة البيانات: | OpenAIRE |
| ردمك: | 9781450390514 |
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