學 術 評 論

特邀評論人:馮登國,《密碼學報》主編，密碼科學技術國家重點實驗室主任

Invited Reviewer:FENG Deng-Guo, Editor-in-Chief of Journal of

Cryptologic Research, Director of State Key Laboratory of Cryptology

評《區(qū)塊鏈共識機制研究綜述》

區(qū)塊鏈是當前的研究熱點，作為區(qū)塊鏈核心技術之一的共識機制，更是受到研究人員和業(yè)界人士的廣泛關注?！睹艽a學報》2019年刊登的文章《區(qū)塊鏈共識機制研究綜述》較為深入、系統(tǒng)、全面地總結了現有的區(qū)塊鏈共識機制。文章從系統(tǒng)模型、共識本質、激勵模式和安全風險等多個角度，將共識機制分為經典分布式共識和區(qū)塊鏈共識兩大類，并對后者中的非授權共識又做了進一步細分和梳理。文章通過豐富的數據和圖例信息，詳細介紹每一類共識機制的基本流程，深入探究典型方案，綜合分析優(yōu)缺點、實現性能和安全性。文章結構清晰、論述詳實、文獻引用全面，是關于共識機制的一篇優(yōu)秀綜述文章，對從事區(qū)塊鏈技術研究的學者和技術人員, 具有很好的借鑒和參考價值。

Review on “Overview on Blockchain Consensus Mechanisms”

Blockchain is the current research hotspot. As one of the core Blockchain technologies, consensus mechanism is even widely concerned by researchers and industry professionals. The article“Overview on Blockchain Consensus Mechanisms”, published in Journal of Cryptologic Research in August 2019, summarizes the existing Blockchain consensus mechanisms in an in-depth, systematic,and comprehensive manner. From the perspective of system model, consensus essence, incentive mode, and security risk, the article systematically identifies the consensus mechanism into two categories: classic distributed consensus and Blockchain consensus, and for the unauthorized consensus of the latter, a detailed summary and specific research are carried out especially. Through rich data and legend information, the article introduces the basic process of each type of consensus mechanism in detail, delves into typical solutions, comprehensively analyzes the advantages and disadvantages, achieved performance and security. The structure of the article is clear, the discussion is concise, and the literature citation is comprehensive. It is an excellent review about consensus mechanisms, which has a high reference value for scholars and technical personnel engaged in the research of Blockchain technology.

所評文章引用格式: 劉懿中, 劉建偉, 張宗洋, 徐同閣, 喻輝. 區(qū)塊鏈共識機制研究綜述[J]. 密碼學報, 2019, 6(4):395–432. [DOI: 10.13868/j.cnki.jcr.000311]

所評文章英文引用格式: LIU Y Z, LIU J W, ZHANG Z Y, XU T G, YU H. Overview on Blockchain consensus mechanisms[J]. Journal of Cryptologic Research, 2019, 6(4): 395–432. [DOI: 10.13868/j.cnki.jcr.000311]