Fig. 9
From: BlockIntelChain: a blockchain-based cyber threat intelligence sharing architecture
Privacy preservation trade-offs in BlockIntelChain. Left panel: probability density of utility scores under varying privacy levels (high, medium, low, none), showing decreased utility with stronger privacy. Right panel: comparison of privacy-preserving techniques (Differential privacy, homomorphic encryption, zero-knowledge proofs, secure multi-party computation, hybrid approaches) across four metrics—utility score, computation overhead, storage overhead, and query latency—demonstrating that hybrid methods provide balanced privacy with acceptable overhead and latency.
