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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Unit commitment problems and their compact and simple models, algorithms, and applications
Unit commitment problems 机组组合 电力系统优化
2023/4/14
机组组合(UC)作为电力系统优化运行的基本问题之一，其模型的质量严重影响着求解器的求解效率，如何建立高质量的UC问题模型则成为近年研究的热点。为此，我们从大规模电力系统UC问题的模型、算法和应用方面展开研究，主要内容包括：针对单机组组合(1UC)问题，基于Facet、凸包以及动态规划相关理论，研究全新的1UC问题统一建模框架，给出1UC问题一系列适用于不同场景、不同算法的高质量模型；基于滑动窗口、...
IAEA Sees Commitment to Operational Safety at Netherlands’ Borssele Nuclear Power Plant, Encourages Continued Improvement（图）
原子能机构 荷兰 博塞尔核电厂 核安全
2023/3/16
An International Atomic Energy Agency (IAEA) team of experts said the operator of the Netherlands’ Borssele nuclear power plant (NPP) is committed to ensuring operational safety and reliability of the...
Subversion-Resistant Commitment Schemes: Definitions and Constructions
Commitment schemes subversion security common reference string model
2019/9/23
A commitment scheme allows a committer to create a commitment to a secret value, and later may open and reveal the secret value in a verifiable manner. In the common reference string model, commitment...
Transparent Polynomial Commitment Scheme with Polylogarithmic Communication Complexity
polynomial commitments zero-knowledge proofs proximity testing
2019/9/16
We introduce novel efficient and transparent construction of the polynomial commitment scheme. A polynomial commitment scheme allows one side (the prover) to commit to a polynomial of predefined degre...
On the Commitment Capacity of Unfair Noisy Channels
Commitment capacity unconditionally secure cryptography unfair noisy channels
2019/5/28
Noisy channels are a valuable resource from a cryptographic point of view. They can be used for exchanging secret-keys as well as realizing other cryptographic primitives such as commitment and oblivi...
UC-Commitment Schemes with Phase-Adaptive Security from Trapdoor Functions
Commitment Universal Composability Global Random Oracle
2019/5/21
We propose a generic framework for perfectly hiding UC-Commitment schemes in the Global Random Oracle model of Canetti \textit{el at.} (CCS 14). The main building block of our construction is a novel ...
We define a new UC functionality (DL-extractable commitment scheme) that allows committer to open a commitment to a group element gxgx; however, the simulator will be able to extract its discrete loga...
A Post-Quantum UC-Commitment Scheme in the Global Random Oracle Model from Code-Based Assumptions
Commitment Scheme Universal Composability
2019/2/27
In this work, we propose the first post-quantum UC-commitment scheme in the Global Random Oracle Model, where only one non-programmable random oracle is available. The security of our proposal is base...
Efficient UC Commitment Extension with Homomorphism for Free (and Applications)
cryptographic protocols UC
2018/11/5
Homomorphic universally composable (UC) commitments allow for the sender to reveal the result of additions and multiplications of values contained in commitments without revealing the values themselve...
Unconditionally secure multi-party quantum commitment scheme
public-key cryptography quantum information
2017/12/19
A new unconditionally secure multi-party quantum commitment is proposed in this paperby encoding the committed message to the phase of a quantum state. Multi-party means that there are more than one r...
Efficient, Round-optimal, Universally-Composable Oblivious Transfer and Commitment Scheme with Adaptive Security
Oblivious Transfer Commitment Schemes Universal Composability
2017/12/1
Adaptive security embodies one of the strongest notions of security that allows an adversary to corrupt parties at any point during protocol execution and gain access to its internal state. Since it m...
Two-Round Concurrent Non-Malleable Commitment from Time-Lock Puzzles
Non-malleable Commitments Time-lock Puzzles Two-round
2017/3/27
Non-malleable commitment is a fundamental cryptographic tool for preventing man-in-the-middle attacks. Since its proposal by Dolev, Dwork, and Noar in 1991, a rich line of research has steadily reduce...
Functional Commitment Schemes: From Polynomial Commitments to Pairing-Based Accumulators from Simple Assumptions
Commitment schemes functional commitments accumulators
2016/12/10
We propose a construction of functional commitment (FC) for linear functions based on constant-size assumptions in composite order groups endowed with a bilinear map. The construction has commitments ...
Commitment,Risk,and Consumption:Do Birds of a Feather Have Bigger Nests?
Commitment Risk Consumption Feather Nests
2016/3/18
We show that incorporating consumption commitments into a standard model of precautionarysaving can complicate the usual relationship between risk and consumption. Inparticular, the presence of plausi...
Quantum Bit Commitment with Application in Quantum Zero-Knowledge Proof
quantum bit commitment quantum zero-knowledge unconditional study
2016/1/6
Watrous (STOC 2006) proved that plugging classical bit commitment scheme that is secure
against quantum attack into the GMW-type construction of zero-knowledge gives a classical
zero-knowledge proof...