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BEYOND THE BASICS: ZkEVM AND ZKROLLUP
BEYOND THE BASICS: ZkEVM AND ZKROLLUP
In the ever-evolving landscape of blockchain technology, scalability and privacy remain paramount challenges. As decentralized networks like Ethereum strive to accommodate a growing user base and an expanding array of applications, innovative solutions have emerged to tackle these hurdles. Two key contenders in this domain are zkEVM and zkRollup. In this article, we embark on a journey to explore the battle of zero knowledge, diving into the depths of zkEVM and zkRollup technologies. We will uncover how they harness the power of zero-knowledge proofs to change blockchain scalability while safeguarding transaction privacy.
🎯ZkEVM
zkEVM is a new type of rollup that stands for “zero-knowledge Ethereum Virtual Machine.” It is fully compatible with the Ethereum Virtual Machine, allowing developers to easily port their Ethereum applications to zkEVM without major changes. In traditional Ethereum, every smart contract execution and transaction is publicly visible on the blockchain. However, zkEVM introduces a layer of privacy by allowing users to submit zero-knowledge proofs to the blockchain. These proofs validate that a smart contract has been executed correctly without revealing the specific details of the computation.
Zero-knowledge proofs enable one party (the prover) to demonstrate the truth of a statement without revealing any further information. By using zkEVM, users can demonstrate the correctness of their smart contract computations without disclosing the actual data involved.
Simply Put…👇👇
📌BENEFITS OF ZkEVM
📍Improved Scalability: By leveraging zero-knowledge proofs, zkEVM reduces the computational overhead and gas costs associated with executing complex smart contracts on the Ethereum mainnet. It helps alleviate the network’s scalability issues.
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📍Enhanced Privacy: zkEVM provides an extra layer of privacy, as sensitive data and transaction details remain hidden from the public view on the blockchain.
🎯ZkROLLUP
zkRollup, short for “zero-knowledge rollup,” is a L2 scaling solution for Ethereum that harnesses zero-knowledge proofs to verify transactions off-chain. This approach allows zkRollups to achieve higher throughput and lower costs compared to the Ethereum base layer. Designed to address the scalability limitations of Ethereum, zkRollup bundles multiple transactions together off-chain and submits a single summary, known as the “rollup,” to the main Ethereum chain. The rollup contains cryptographic proofs that validate the correctness and validity of all transactions within the bundle.
By moving transaction processing off-chain and posting only the summarized rollup on-chain, zkRollup effectively reduces congestion and minimizes gas costs on the main Ethereum network. This optimization significantly improves the throughput, enabling a larger number of transactions to be processed in a single on-chain operation. Moreover, the integration of zero-knowledge proofs ensures the privacy and security of off-chain computations without compromising the network’s integrity.
Basically…👇👇
In the analogy above, zkRollup Express represents zkRollup technology for Ethereum. It offers a scalable and efficient solution by bundling transactions (packages) off-chain, submitting a summarized proof (rollup) on-chain, and maintaining privacy through zero-knowledge proofs. With zkRollup, Ethereum Express can streamline its shipping operations, handle more packages, and ensure the security and integrity of its deliveries. Similarly, zkRollup addresses Ethereum’s scalability limitations by significantly increasing throughput and reducing costs on the main Ethereum chain.
📌BENEFITS OF ZkROLLUP
📍Enhanced Scalability: By aggregating multiple transactions into a single rollup, zkRollup significantly increases the throughput of the Ethereum network, enabling it to process a larger number of transactions per block.
📍Reduced Gas Costs: Since most of the computation and validation occur off-chain, the gas costs associated with executing transactions on the mainnet are significantly reduced.
📍Better User Experience: zkRollup provides faster transaction finality, which results in quicker confirmation times for users.
🎯DIFFERENCES BETWEEN ZkEVM & ZkROLLUP
The main difference between zkEVM and zkRollup is that zkEVM is fully compatible with the EVM, while zkRollup is not. This means that zkEVM can support all of the same applications as Ethereum, while zkRollup is limited to applications that can be implemented in a zk-SNARK (Will explain this later).
Both zkEVM and zkRollup are promising scaling solutions for Ethereum. However, zkEVM is still in development, while zkRollup is already being used by a number of projects.
Here is a table that summarizes the key differences between zkEVM and zkRollup:
🎯VARIANTS OF ZKROLLUP
There are two main variants of zkRollup – optimistic rollups and zk-SNARK rollups:
📍OPTIMISTIC ROLLUPS: These are a type of zkRollup that uses fraud proofs to verify transactions. This means that if a malicious actor tries to cheat the system, other participants in the rollup can challenge the fraud and have their funds slashed. Optimistic rollups are relatively simple to implement, but they can be less secure than zk-SNARK rollups.
📍Zk-SNARK ROLLUPS: These are a type of zkRollup that uses zk-SNARKs to verify transactions. This means that the validity of transactions can be verified without revealing any information about the transactions themselves. zk-SNARK rollups are more secure than optimistic rollups, but they are also more complex to implement.
In addition to these two main variants, there are also a number of other variants of zkRollup that are being developed. These include:
📌zkPorter: A variant of zkRollup that is designed to be more efficient than traditional zkRollups.
📌zkSync 2.0: A variant of zkRollup that is designed to be fully compatible with the Ethereum Virtual Machine.
📌StarkNet: A variant of zkRollup that is designed to be very scalable.
The number of variants of zkRollup that can be implemented is limited by the underlying cryptography, but there are a number of different ways to implement zkRollup, and each implementation has its own advantages and disadvantages. As the technology continues to develop, we can expect to see even more variants of zkRollup being developed.
🎯PROJECTS MAKING USE OF zkEVM AND ZKROLLUP TECHNOLOGY
Here are some projects making use of zkEVM and zkRollup:
: is a zkRollup-based scaling solution for Ethereum. It is fully compatible with the EVM, so developers can easily port their Ethereum applications to zkSync. In its beta testnet, zkSync was able to process over 2,000 transactions per second with negligible gas fees.
: is another zkRollup-based scaling solution for Ethereum. It is also fully compatible with the EVM, and it has achieved even better results than zkSync. In its testnet, StarkNet was able to process over 40,000 transactions per second with negligible gas fees.
: is another zkEVM-based scaling solution for Ethereum. It is still in development, but it has already achieved some promising results. In its pre-alpha testnet, Scroll was able to process over 10,000 transactions per second with negligible gas fees.
Hermez: is a zkEVM-based scaling solution for Ethereum. It is developed by Polygon, and it is designed to be compatible with the existing Polygon ecosystem. Polygon Hermez is still in development, but it has the potential to be a major player in the zkEVM space.
These are just a few of the projects that are making use of zkEVM and zkRollup. As these technologies continue to develop, we can expect to see even more projects using them to scale Ethereum.
🎯CONCLUSION
To wrap it all up, zkRollup and zkEVM stand as powerful advancements in the blockchain ecosystem, offering scalable solutions that prioritize privacy and efficiency. As the blockchain space evolves, we can anticipate further progress in these technologies, ushering in a new era of decentralized applications and transformative blockchain capabilities. With zkRollup and zkEVM leading the charge, we remain bullish on the future of blockchain, where scalability and privacy converge for a more inclusive and dynamic ecosystem.
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