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Breakpoint 2024: Workshop: Build Omnichain Programs (Matthew Krak)
By breakpoint-24
Published on 2024-09-21
Layer Zero Labs introduces revolutionary omnichain interoperability protocol, enabling secure and customizable cross-chain communication for Solana developers
In a groundbreaking presentation at Solana Breakpoint 2024, Matthew Krak of Layer Zero Labs unveiled a revolutionary omnichain interoperability protocol set to transform cross-chain development. This innovative solution promises to enhance security, flexibility, and efficiency for Solana developers working across multiple blockchain networks.
Summary
Layer Zero Labs has introduced an omnichain interoperability protocol that allows developers to securely interact with over 80 different EVM networks and Solana. The protocol's key feature is its ability to let developers configure their own validator sets for verifying messages between chains, offering unprecedented control over security parameters.
This new approach addresses critical vulnerabilities in traditional bridge infrastructure, which have led to billions in losses due to hacks. By allowing developers to customize security settings on a per-pathway basis, Layer Zero eliminates the "one-size-fits-all" model that has plagued cross-chain communication.
The protocol is built on three core principles: permissionlessness, censorship resistance, and immutability. These features ensure that developers can trust the infrastructure they're building on, without fear of centralized control or interference.
Key Points:
Customizable Security
Layer Zero's protocol allows developers to configure their own validator sets for verifying cross-chain messages. This means that instead of relying on a single, monolithic security model, each application can tailor its security parameters to its specific needs. Developers can choose from over 30 different verifier networks, including popular options like Polyhedra, Google Cloud, and others.
This customization extends to both the type of security and the scope, allowing developers to determine the number and composition of validators in their stack. This flexibility is a game-changer in the world of cross-chain communication, where previously, a security failure in a single bridge could compromise multiple applications.
Decentralized Verifier Networks (DVNs)
The core of Layer Zero's security model is the concept of Decentralized Verifier Networks (DVNs). These networks are responsible for validating messages between chains. The protocol allows developers to configure multiple DVNs for each pathway, significantly reducing the risk of a single point of failure.
Currently, there are over 30 DVNs available, ranging from ZK-lite clients to cryptographically secure state proofs. This variety ensures that developers can choose the most appropriate security measures for their specific use case, balancing factors like cost, speed, and security level.
Horizontal Composability
Layer Zero introduces the concept of "horizontal composability" to address issues with atomic transactions in cross-chain environments. This feature allows developers to break down complex cross-chain operations into separate, manageable steps. For example, a token transfer, swap, and staking operation can be executed as separate transactions, preventing a failure in one step from reverting the entire process.
This approach offers greater flexibility in designing cross-chain workflows and improves the user experience by allowing partial execution of complex operations. It's a significant improvement over traditional models where a single failure could result in the entire transaction being reverted.
Native Gas Support
The protocol includes built-in support for gas drops on destination chains. This feature allows developers to automatically provide users with the necessary gas to complete transactions on the target chain. It's a crucial quality-of-life improvement that simplifies the user experience and removes a significant barrier to cross-chain interactions.
Developers can specify gas amounts to be transferred along with cross-chain messages, ensuring smooth execution of transactions without requiring users to hold native tokens on every chain they interact with.
Facts + Figures
- Layer Zero is live on over 80 different EVM networks and recently launched on Solana
- The protocol allows configuration of over 30 different verifier networks
- Approximately $2.3 billion has been lost due to bridge security-related hacks in blockchain history
- Layer Zero's protocol is built on three principles: permissionlessness, censorship resistance, and immutability
- The Electric Capital Developer Report from 2023 shows developers are increasingly working across multiple chains
- Layer Zero supports horizontal composability, allowing complex cross-chain operations to be broken down into separate steps
- The protocol includes native support for gas drops on destination chains
- Layer Zero's approach allows for better scalability of verification processes
Top quotes
- "Layer Zero is basically a way for you to permissionlessly interact with any chain that we support currently."
- "One of the big selling points that Layer Zero has over other interoperability solutions is that you're able to configure not only the type of validator set that you use for verifying messages between chains, but also configure the size and scope of those validators."
- "I'm not forced to accept a one-size-fits-all model for my application security. I'm actually able to control and parameterize what type of security I need on a per pathway basis."
- "Overall, about $2.3 billion have been lost to bridge security related hacks, which means that as a user, you really need to make some stark trade-offs around how you determine your application security when it comes to moving data between chains."
- "If you're able to pass any type of message through as valid with no security checks on who can pass that message, it means that you're now fundamentally hurting not only the application that subscribes to that validation network."
Questions Answered
What is Layer Zero Labs?
Layer Zero Labs is a company that has developed an omnichain interoperability protocol. This protocol allows developers to securely interact with over 80 different EVM networks and Solana, enabling cross-chain communication and transactions. The key innovation of Layer Zero is its ability to let developers configure their own validator sets for verifying messages between chains, offering unprecedented control over security parameters in cross-chain operations.
How does Layer Zero address security issues in cross-chain communication?
Layer Zero addresses security issues by allowing developers to customize their security settings on a per-pathway basis. Instead of relying on a single, monolithic security model, each application can configure its own set of Decentralized Verifier Networks (DVNs). This approach significantly reduces the risk of widespread vulnerabilities that have plagued traditional bridge infrastructures. Developers can choose from over 30 different verifier networks and configure the number and composition of validators, tailoring the security to their specific needs and risk tolerance.
What are the core principles of Layer Zero's protocol?
Layer Zero's protocol is built on three core principles: permissionlessness, censorship resistance, and immutability. Permissionlessness means that any application on supported networks can access the Layer Zero endpoint smart contract and send messages to any supported pathway. Censorship resistance ensures that once a message has been emitted from the source chain, Layer Zero has no ability to censor or stop messages in flight. Immutability guarantees that the core protocol infrastructure cannot be changed or upgraded by a centralized entity, providing stability and trust for developers building on the platform.
What is horizontal composability in Layer Zero?
Horizontal composability is a feature introduced by Layer Zero to address issues with atomic transactions in cross-chain environments. It allows developers to break down complex cross-chain operations into separate, manageable steps. For example, a process involving token transfer, swapping, and staking can be executed as separate transactions. This approach offers greater flexibility in designing cross-chain workflows and improves the user experience by allowing partial execution of complex operations, even if one step fails.
How does Layer Zero support gas fees on destination chains?
Layer Zero includes built-in support for gas drops on destination chains. This feature allows developers to automatically provide users with the necessary gas to complete transactions on the target chain. Developers can specify gas amounts to be transferred along with cross-chain messages, ensuring smooth execution of transactions without requiring users to hold native tokens on every chain they interact with. This significantly simplifies the user experience and removes a major barrier to cross-chain interactions.
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