Signing key exposure resistance
WebPrevious work on Key Exposure Freeness. The problem of key exposure was partly addressed in [1], where it is shown how to build identity-based chameleon hash functions. The advantage of using the identity-based primitives is that applications could direct the use of transaction-specific chameleon hashes: The public key associated to a ... WebMar 26, 2024 · Abstract. Identity-based proxy re-signature (IDPRS) is a novel cryptographic primitive that allows a semi-trusted proxy to convert a signature under one identity into another signature under another identity on the same message by using a re-signature key. Due to this transformation function, IDPRS is very useful in constructing privacy ...
Signing key exposure resistance
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WebMay 1, 2024 · Definition 4 Forward Security(Key-Exposure Resilience) under Continual Leakage. An auditing protocol is l-Forward Secure(Key-Exposure Resilient) under Continual Leakage if for any probabilistic polynomial-time adversary A, the advantage of the adversary to win the above game is a negligible function in λ. 4.2. Our protocol WebDec 19, 2024 · The key exposure is a serious threat for the security of data integrity auditing. Once the user's private key for auditing is exposed, most of the existing data integrity auditing schemes would inevitably become unable to work. To deal with this problem, we construct a novel and efficient identity-based data integrity auditing scheme with key …
Web13 hours ago · In fact, copper mining deals exceeded gold mining deals in total value last year, according to a new report by S&P Global. M&A work among copper companies in 2024 totaled more than $14 billion in ... WebMar 26, 2024 · Identity-based proxy re-signature (IDPRS) is a novel cryptographic primitive that allows a semi-trusted proxy to convert a signature under one identity into another signature unde
WebIn 2014, a new security definition of a revocable identity-based signature (RIBS) with signing key exposure resistance was introduced. Based on this new definition, many scalable … WebFeb 1, 2024 · Revocable identity-based fully homomorphic signature scheme with signing key exposure resistance @article{Xie2024RevocableIF, title={Revocable identity-based …
WebMay 1, 2024 · In addition, we introduce a new security definition of RIBFHS with signing key exposure resistance. Then, we employ Agrawal’s left–right lattices and delegation …
WebFeb 1, 2024 · In addition, we extend our interest into identity-based signatures; we introduce a new security definition of revocable identity-based signature (RIBS) with signing key … how to ship wine from napaWebalso note that key exposure against the transformation key is unnecessary when the key updated is sent through via a public channel since the transformation key can be derived by anyone. On the other hand, since the user decryption. 95 key is static, it obviously cannot resist the decryption key exposure attack we. 5 how to ship wine from florida to texasWebFeb 5, 2015 · Cloud storage auditing is viewed as an important service to verify the integrity of the data in public cloud. Current auditing protocols are all based on the assumption that the client's secret key for auditing is absolutely secure. However, such assumption may not always be held, due to the possibly weak sense of security and/or low security settings at … how to ship whiskeyWebSep 10, 2024 · Furthermore, we demonstrate that Hung et al.’s RIBS scheme is vulnerable to signing key exposure attack. To solve these problems, we construct an improved RIBS scheme with strong unforgeability and signing key exposure resistance in the standard model. Compared with previous RIBS schemes without random oracles, ... notting hill junior schoolWebIn this paper, we aim to provide a scalable revocation mechanism for attribute-based signature (ABS). Specifically, we first formally define the syntax of revocable ABS (RABS), followed with a corresponding security model that considers a realistic threat called signing key exposure. Then, built on the ideas of an ABS scheme and binary data ... how to ship wine internationallyWebsize, and the revocation mechanism with public channels. However, the KGC’s overhead increases linearly with the number of users, which results in issues with scalability. Moreo how to ship wine home from napaWebApr 17, 2024 · Then, we propose a scalable RIBS scheme with signing key exposure resistance by combining the complete subtree method with Galindo and Garcia’s IBS … notting hill just watch