Author: Dragi Bucukovski 2019-09-09 04:47:17
Published on: 2019-09-09T04:47:17+00:00
The given context is an email conversation that seems to be discussing the security implications of Bitcoin's blockchain. The first message simply asks for information about a bank account balance. The second email discusses the impact of a sybil attack on both full nodes and SPVs (Simplified Payment Verification) in automated payment processing systems. A sybil attack can cause a full node to stall, while an SPV will follow the false blockchain. The use of a timeout could be implemented to warn higher-layer management systems to pay attention if a full node is unable to see a new block for six hours. In contrast, an automated system using an SPV with PoW fraud proofs may not notice a sybil attack where false payments are made on the attack chain and double-spent on the global consensus chain.
Updated on: 2023-06-13T21:18:14.462812+00:00