ZK Rollup Splendor
The ability to prove honest computation without revealing inputs
Last updated
The ability to prove honest computation without revealing inputs
Last updated
A zero-knowledge rollup (zk-rollup) constitutes a layer-2 scaling strategy that relocates computation and state off-chain, onto off-chain networks, while upholding the storage of transaction data on-chain within a layer-1 network (such as Ethereum). Changes to the state are computed off-chain and subsequently confirmed as valid on-chain through the utilization of zero-knowledge proofs.
Zk-rollups deliver a substantial upsurge in transaction throughput and contribute to the mitigation of transaction costs, all the while inheriting the security attributed to the base-layer (layer-1) network with which they are interlinked for settlement. In lieu of posting each individual transaction on-chain, zk-rollups solely necessitate periodic posting of valid transaction batches from the layer-2 network onto the layer 1. This approach effectively harnesses the censorship resistance and security inherent to the base layer for transaction settlement. Additionally, rollups often integrate data compression techniques to curtail the volume of data posted on the layer 1.
A zero-knowledge proof is a cryptographic technique employed to validate the accuracy of a statement without disclosing the content of the statement itself. In this context, the 'prover' seeks to substantiate a claim, while the 'verifier' is tasked with confirming its validity.
The inception of zero-knowledge proofs traces back to a seminal paper published in 1985 titled which established a widely accepted definition:
A zero-knowledge protocol constitutes a means through which one participant (the prover) can demonstrate the truth of a specific assertion to another participant (the verifier), all while divulging no information other than the fact that the stated assertion is indeed true.
As time has progressed, the efficacy of zero-knowledge proofs has evolved, finding application in various real-world scenarios.
Zero-knowledge proofs marked a pivotal advancement in the realm of applied cryptography, offering the potential to enhance information security for individuals. Imagine the scenario where you must substantiate a statement (e.g., 'I am a citizen of country X') to a third party (e.g., a service provider). Traditionally, this would entail furnishing 'proof' in the form of supporting documents, such as a national passport or driver's license.
Watch the following video to understand more about zero knowledge proofs: