Ouroboros: A Provably Secure Proof-of-Stake Blockchain Protocol

被引：889

作者：

Kiayias, Aggelos ^{[1
,2
]}

Russell, Alexander ^{[3
]}

David, Bernardo ^{[4
,5
]}

Oliynykov, Roman ^{[6
]}

机构：

[1] Univ Edinburgh, Edinburgh, Midlothian, Scotland

[2] IOHK, Edinburgh, Midlothian, Scotland

[3] Univ Connecticut, Storrs, CT USA

[4] Tokyo Inst Technol, Tokyo, Japan

[5] IOHK, Tokyo, Japan

[6] IOHK, Kiev, Ukraine

来源：

ADVANCES IN CRYPTOLOGY - CRYPTO 2017, PT I | 2017年 / 10401卷

基金：

欧盟地平线“2020”; 欧洲研究理事会; 美国国家科学基金会;

关键词：

D O I：

10.1007/978-3-319-63688-7_12

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

We present "Ouroboros", the first blockchain protocol based on proof of stake with rigorous security guarantees. We establish security properties for the protocol comparable to those achieved by the bitcoin blockchain protocol. As the protocol provides a "proof of stake" blockchain discipline, it offers qualitative efficiency advantages over blockchains based on proof of physical resources (e.g., proof of work). We also present a novel reward mechanism for incentivizing Proof of Stake protocols and we prove that, given this mechanism, honest behavior is an approximate Nash equilibrium, thus neutralizing attacks such as selfish mining.

引用

页码：357 / 388

页数：32

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