Results 81 to 90 of about 95,474 (182)
Practical Lattice-Based Multisignature Schemes for Blockchains
IEEE Access, 2019 Compact multisignature is vital for shrinking the signature size of decentralized blockchain. All practical compact multisignature schemes have been constructed from the discrete logarithm problem which is potentially vulnerable to quantum computing ...
Changshe Ma, Mei Jiang
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A Machine-Checked Formalization of the Random Oracle Model [PDF]
, 2006 Most approaches to the formal analysis of cryptography protocols make the perfect cryptographic assumption, which entails for example that there is no way to obtain knowledge about the plaintext pertaining to a ciphertext without knowing the key. Ideally, one would prefer to abandon the perfect cryptography hypothesis and reason about the computational
Gilles Barthe, Sabrina Tarento
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A Secure Authentication Protocol Supporting Efficient Handover for UAV
MathematicsUnmanned Aerial Vehicles (UAVs) are increasingly pivotal in operations such as flood rescue, wildfire surveillance, and covert military endeavors, with their integration into the Internet of Things (IoT) networks broadening the scope of services they ...
Kang Wen +5 more
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Pseudorandomness in the (Inverseless) Haar Random Oracle Model
We study the (in)feasibility of quantum pseudorandom notions in a quantum analog of the random oracle model, where all the parties, including the adversary, have oracle access to the same Haar random unitary. In this model, we show the following: - (Unbounded-query secure) pseudorandom unitaries (PRU) exist.
Ananth, Prabhanjan +3 more
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Zero Knowledge in the Random Oracle Model, Revisited [PDF]
, 2009 We revisit previous formulations of zero knowledge in the random oracle model due to Bellare and Rogaway (CCS '93) and Pass (Crypto '03), and present a hierarchy for zero knowledge that includes both of these formulations. The hierarchy relates to the programmability of the random oracle, previously studied by Nielsen (Crypto '02).
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Faster Convex Optimization: Simulated Annealing with an Efficient Universal Barrier
, 2015 This paper explores a surprising equivalence between two seemingly-distinct convex optimization methods. We show that simulated annealing, a well-studied random walk algorithms, is directly equivalent, in a certain sense, to the central path interior ...
Abernethy, Jacob, Hazan, Elad
core
Special Soundness in the Random Oracle Model
IACR Communications in CryptologyWe generalize the optimal knowledge extractor for constant-round special sound protocols presented by Wikström (2018) to a knowledge extractor for the corresponding non-interactive Fiat-Shamir proofs in the random oracle model and give an exact analysis of the extraction error and running time.
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ID-based signature without trusted PKG
Tongxin xuebao, 2008 PKG（private key generater） scheme was presented to overcome Chen-Zhang-Kim’s scheme drawback about a large amount of computation and Gorantla-Saxena’s scheme drawback about needing trusted PKG.More precisely,under the random oracle model,the scheme is ...
ZHOU Liang1, LI Da-peng2, YANG Yi-xian1
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Generalization and improvement of Nyberg-Rueppel message recovery blind signatures
Tongxin xuebao, 2005 A generalized Nyberg-Rueppel message recovery blind signature scheme was presented,from which the scheme proposed by Camenisch et al and two new schemes could be obtained.One of these two new schemes was an efficiently improved scheme without computing ...
HUANG Zhen-jie1 +2 more
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Active learning with human heuristics: an algorithm robust to labeling bias
Frontiers in Artificial IntelligenceActive learning enables prediction models to achieve better performance faster by adaptively querying an oracle for the labels of data points. Sometimes the oracle is a human, for example when a medical diagnosis is provided by a doctor. According to the
Sriram Ravichandran +5 more
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