Advances in hardware manufacturing technology, wireless communications, micro electro-
mechanical devices and information processing technologies enabled the development of …

Reputation systems provide mechanisms to produce a metric encapsulating reputation for a
given domain for each identity within the system. These systems seek to generate an …

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 …

Peer-to-peer and other decentralized, distributed systems are known to be particularly
vulnerable to sybil attacks. In a sybil attack, a malicious user obtains multiple fake identities …

Internet of things (IoT) is a contemporary technology, which links a tremendous number of
devices with each other to ease the life via many useful services such as information …

Peer-to-peer and other decentralized, distributed systems are known to be particularly
vulnerable to sybil attacks. In a sybil attack, a malicious user obtains multiple fake identities …

Peer-to-peer networks based on distributed hash tables (DHTs) have received considerable
attention ever since their introduction in 2001. Unfortunately, DHT-based systems have been …

Recommendation systems can be attacked in various ways, and the ultimate attack form is
reached with a\em sybil attack, where the attacker creates a potentially unlimited number …

Proof-of-work (PoW) is an algorithmic tool used to secure networks by imposing a
computational cost on participating devices. Unfortunately, traditional PoW schemes require …

The sybil attack in distributed systems refers to individual malicious users joining the system
multiple times under multiple fake identities. Sybil attacks can easily invalidate the …