Execution Layer Security pertains to the protective measures and protocols safeguarding the operational integrity of a blockchain’s execution layer. This layer processes transactions and smart contract code, determining state changes within the network. Security here addresses vulnerabilities like code exploits, denial-of-service attacks, and improper state transitions.
Context
In blockchain development, Execution Layer Security is a constant area of focus, with upgrades and audits frequently reported in crypto news. Significant events such as network upgrades, like Ethereum’s shift to proof-of-stake, often involve extensive efforts to harden this layer against new attack vectors. Maintaining robust security at this level is essential for preventing financial losses and preserving network trustworthiness.
A new class of Conditional Resource Exhaustion Attacks is formalized, exploiting Turing-complete execution to decouple validator work from fee compensation, fundamentally compromising blockchain liveness.
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