Non-Malleability

Architecture

Non-malleability, within cryptographic systems and distributed ledgers, describes a property where the semantic content of a transaction remains consistent irrespective of its serialization. This is critical in cryptocurrency to prevent attacks where a malicious actor alters a transaction’s representation without changing its intended effect, potentially leading to double-spending or fund manipulation. A robust architecture ensures that different valid encodings of the same transaction yield identical results during validation and execution, safeguarding against subtle but impactful vulnerabilities. Consequently, the design of consensus mechanisms and transaction formats must prioritize this characteristic to maintain network integrity and user trust.