Results 111 to 120 of about 11,450 (279)
A Criterion and Schemes on the Random Oracle Model
, 2004 A study of the random oracle model seems to be concentrated to showing the gap between the schemes in the random oracle model and the schemes whose random oracles are replaced with functions chosen at random from some function ensembles.
Manabu Suzuki, Keisuke Tanaka
core
Special Soundness in the Random Oracle Model [PDF]
, 2021 We generalize the 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 ...
Douglas Wikström
core
Miners' Reward Elasticity and Stability of Competing Proof‐of‐Work Cryptocurrencies
International Economic Review, EarlyView.ABSTRACT Proof‐of‐Work cryptocurrencies employ miners to sustain the system through algorithmic reward adjustments. We develop a stochastic model of the multicurrency mining and identify conditions for stable transaction speeds. Bitcoin's algorithm requires hash supply elasticity <$<$1 for stability, while ASERT remains stable for any elasticity and ...
Kohei Kawaguchi +2 more
wiley +1 more source
Quantum Random Oracle Model with Auxiliary Input [PDF]
, 2019 The random oracle model (ROM) is an idealized model where hash functions are modeled as random functions that are only accessible as oracles. Although the ROM has been used for proving many cryptographic schemes, it has (at least) two problems.
Takashi Yamakawa +2 more
core +1 more source
Medical Knowledge Integration Into Reinforcement Learning Algorithms for Dynamic Treatment Regimes
International Statistical Review, EarlyView.Summary The goal of precision medicine is to provide individualised treatment at each stage of chronic diseases, a concept formalised by dynamic treatment regimes (DTR). These regimes adapt treatment strategies based on decision rules learned from clinical data to enhance therapeutic effectiveness.
Sophia Yazzourh +3 more
wiley +1 more source
International Statistical Review, EarlyView.Summary In high‐dimensional survival analysis, effective variable selection is crucial both for model interpretation and predictive performance. This paper investigates Cox regression with lasso and adaptive lasso penalties in genomic datasets where covariates far outnumber observations.
Pilar González‐Barquero +2 more
wiley +1 more source
Permutation-Based Hash Chains with Application to Password Hashing
IACR Transactions on Symmetric CryptologyHash chain based password systems are a useful way to guarantee authentication with one-time passwords. The core idea dates back to Lamport, and is specified in RFC 1760 as S/Key. At CCS 2017, Kogan et al.
Charlotte Lefevre, Bart Mennink
doaj +1 more source
The Cross and Conflict: How Do Christians Impact Protest Dynamics?
Journal for the Scientific Study of Religion, EarlyView.ABSTRACT This study examines the relationship between Christian actors, practices, and sacred sites in US protests and demonstrations, focusing on how political ideology shapes conflict outcomes. Using event‐level data from the Armed Conflict Location & Event Data Project (ACLED), the analysis explores 63,000 protest events from 2020 to 2024 ...
Joel Day
wiley +1 more source
四川大学学报. 自然科学版, 2006 由带Hash的ElGamal加密与Schnorr签名构成的加密方案尽管从直观上看是抗选择密文攻击的,但以前的证明中或者需要在线知识提取假设,或者只能在更受限制的GenericGroup模型中得以证明,因此,其严格的归约化证明仍然是一个公开问题.作者在Gap Diffie-Hellman(GDH)假设下,在Random Oracle模型中,利用了Random Oracle Hash函数的特点模仿解密而严格证明了该方案确实达到了这个强安全级别.
梅其祥, 何大可, 唐小虎
doaj
Journal for the Scientific Study of Religion, EarlyView.ABSTRACT Drawing on 3 years of qualitative fieldwork at a United Methodist church and a Catholic parish in Minneapolis‐St. Paul, I analyze how White, liberal congregations translated race‐conscious ideals into organizational practice in the wake of the 2020 police murder of George Floyd.
Daniel Cueto‐Villalobos
wiley +1 more source