4 papers
A Comment on "e-PoS: Making PoS Decentralized and Fair"
Suhyeon Lee, Seungjoo Kim
Proof-of-Stake (PoS) is a prominent Sybil control mechanism for blockchain-based systems. In "e-PoS: Making PoS Decentralized and Fair," Saad et al. (TPDS'21) introduced a new Proo…
A Tip for IOTA Privacy: IOTA Light Node Deanonymization via Tip Selection
Hojung Yang, Suhyeon Lee, Seungjoo Kim
IOTA is a distributed ledger technology that uses a Directed Acyclic Graph (DAG) structure called the Tangle. It is known for its efficiency and is widely used in the Internet of T…
Do You Really Need to Disguise Normal Servers as Honeypots?
Suhyeon Lee, Kwangsoo Cho, Seungjoo Kim
A honeypot, which is a kind of deception strategy, has been widely used for at least 20 years to mitigate cyber threats. Decision-makers have believed that honeypot strategies are…
Block Double-Submission Attack: Block Withholding Can Be Self-Destructive
Suhyeon Lee, Donghwan Lee, Seungjoo Kim
Proof-of-Work (PoW) is a Sybil control mechanism adopted in blockchain-based cryptocurrencies. It prevents the attempt of malicious actors to manipulate distributed ledgers. Bitcoi…