Blockchain is a technology that was proposed to enable the decentralized digital currency,
Bitcoin. Since its inception, blockchain has been widely used in many other areas, including …

Over the Internet today, computing and communications environments are significantly more
complex and chaotic than classical distributed systems, lacking any centralized organization …

We present eclipse attacks on bitcoin's peer-to-peer network. Our attack allows an adversary
controlling a sufficient number of IP addresses to monopolize all connections to and from a …

We present eclipse attacks on Ethereum nodes that exploit the peer-to-peer network used
for neighbor discovery. Our attacks can be launched using only two hosts, each with a single …

Distributed Systems Page 1 DS 2006; Ch1 16-Jan-06 Timo Alanko, 2006 1 Distributed
Systems Spring 2006 Timo Alanko 16-Jan-06 2 Sources of material • Tanenbaum, van …

We present Tapestry, a peer-to-peer overlay routing infrastructure offering efficient, scalable,
location-independent routing of messages directly to nearby copies of an object or service …

Distributed computer architectures labeled" peer-to-peer" are designed for the sharing of
computer resources (content, storage, CPU cycles) by direct exchange, rather than requiring …

Decentralized distributed systems such as peer-to-peer systems are particularly vulnerable
to sybil attacks, where a malicious user pretends to have multiple identities (called sybil …

This paper presents Scribe, a scalable application-level multicast infrastructure. Scribe
supports large numbers of groups, with a potentially large number of members per group …

Done well, separation of concerns can provide many software engineering benefits,
including reduced complexity, im-proved reusability, and simpler evolution. The choice of …