搜索结果: 1-15 共查到“密码学 consensus”相关记录35条 . 查询时间(0.216 秒)
Bootstrapping Consensus Without Trusted Setup: Fully Asynchronous Distributed Key Generation
threshold cryptography distributed cryptography asynchronous consensus
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2019/9/16
In this paper, we present the first fully asynchronous distributed key generation (ADKG) algorithm as well as the first distributed key generation algorithm that can create keys with a dual (f,2f+1)&#...
Analysis of Nakamoto Consensus
algorithm deserves simple analysis
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2019/8/20
The famed Bitcoin white paper presented an unconventional (at the time) Byzantine fault tolerant consensus algorithm that is now known as the Nakamoto consensus [2]. Nakamoto consensus centers around ...
Synchronous Consensus with Optimal Asynchronous Fallback Guarantees
cryptographic protocols Byzantine agreement
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2019/6/13
Typically, protocols for Byzantine agreement (BA) are designed to run in either a synchronous network (where all messages are guaranteed to be delivered within some known time ΔΔ from when they are se...
Robust and Scalable Consensus for Sharded Distributed Ledgers
Blockchain sharding randomness
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2019/6/12
ByzCoin, a promising alternative of Bitcoin, is a scalable consensus protocol used as a building block of many research and enterprise-level decentralized systems. In this paper, we show that ByzCoin ...
Pixel: Multi-signatures for Consensus
multi-signature forward security blockchain
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2019/5/21
Multi-signatures enable a group of signers to jointly generate a short and efficiently verifiable signature on a common message. They are commonly used in proof-of-stake and permissioned blockchains, ...
Digital Signatures for Consensus
blockchain multi-signature forward-security
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2019/3/11
We present a pairing-based signature scheme for use in blockchains that achieves substantial savings in bandwidth and storage requirements while providing strong security guarantees. Our signature sch...
Monoxide: Scale Out Blockchain with Asynchronous Consensus Zones
Blockchain Sharding Atomicity Parallel Security
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2019/3/6
Cryptocurrencies have provided a promising infrastructure for pseudonymous online payments. However, low throughput has significantly hindered the scalability and usability of cryptocurrency systems f...
Lattice-Based Signature from Key Consensus
post-quantum cryptography lattice signature
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2018/12/6
In this work, we present generalization and optimization of Dilithium, which is one of the promising lattice-based signature candidates for NIST postquantum cryptography (PQC) standardization. This is...
Dfinity Consensus, Explored
Blockchain Byzantine Consensus
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2018/12/3
We explore a Byzantine Consensus protocol called Dfinity Consensus, recently published in a technical report. Dfinity Consensus solves synchronous state machine replication among n=2f+1n=2f+1 replicas...
DEXON: A Highly Scalable, Decentralized DAG-Based Consensus Algorithm
Blockchain Blocklattice Consensus
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2018/11/20
A blockchain system is a replicated state machine that must be fault tolerant. When designing a blockchain system, there is usually a trade-off between decentralization, scalability, and security. In ...
Pitchforks in Cryptocurrencies: Enforcing rule changes through offensive forking- and consensus techniques
cryptographic protocols consensus techniques
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2018/11/16
The increasing number of cryptocurrencies, as well as the rising number of actors within each single cryptocurrency, inevitably leads to tensions between the respective communities. As with open sourc...
Helix: A Scalable and Fair Consensus Algorithm Resistant to Ordering Manipulation
Blockchain Consensus protocol Byzantine agreement
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2018/11/14
We present Helix, a Byzantine fault tolerant and scalable consensus algorithm for fair ordering of transactions among nodes in a distributed network. In Helix, one among the network nodes proposes a p...
Ouroboros-BFT: A Simple Byzantine Fault Tolerant Consensus Protocol
Byzantine Agreement Consensus
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2018/11/2
We present a simple, deterministic protocol for ledger consensus that tolerates Byzantine faults. The protocol is executed by nn servers over a synchronous network and can tolerate any number tt of By...
SoK: A Consensus Taxonomy in the Blockchain Era
Consensus Byzantine agreement blockchain protocols
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2018/8/21
Consensus (a.k.a. Byzantine agreement) is arguably one of the most fundamental problems in distributed systems, playing also an important role in the area of cryptographic protocols as the enabler of ...
Crash-tolerant Consensus in Directed Graph Revisited
communication rounds directed graphs
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2018/5/15
Fault-tolerant distributed consensus is a fundamental problem in secure distributed computing. In this work, we consider the problem of distributed consensus in directed graphs tolerating crash failur...