Adversary costs refer to the total resources an attacker must expend to compromise a cryptographic system or blockchain network. These costs include computational power, financial outlay, and time required to execute a successful attack. A robust system design aims to make these expenditures prohibitively high for malicious actors. This economic disincentive safeguards network integrity and transaction finality.
Context
The concept of adversary costs is central to assessing the security model of various blockchain protocols, particularly in proof-of-work and proof-of-stake systems. News often reports on analyses comparing these costs across different networks, influencing perceptions of a digital asset’s security posture. Ongoing research seeks to further elevate these costs through cryptographic advancements and protocol upgrades, thereby strengthening network defenses.
This research formalizes economic security for permissionless consensus, demonstrating how slashing mechanisms in Proof-of-Stake can enhance network resilience.
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