Benefits of Reusing MSM Gas Calculation

Oct 13, 2025 by wbrum.org 49 views

Description

In the current implementation of Kona, the MSM (Multi-Signature Message) required gas calculation is defined as a custom method within the client. This is due to the fact that the msm_required_gas method in REVM (Runtime Environment for Virtual Machines) is gated behind the blst feature flag, making it inaccessible in no_std environments. This ticket proposes to utilize a version of REVM in Kona that exports the msm_required_gas method outside the bls12_381 module, thereby reusing the existing MSM gas calculation from REVM.

Benefits of Reusing MSM Gas Calculation

Reusing the MSM gas calculation from REVM offers several benefits, including:

Improved Code Reusability: By leveraging the existing MSM gas calculation from REVM, we can reduce code duplication and improve the overall maintainability of the Kona client.
Enhanced Consistency: Reusing the MSM gas calculation ensures that the gas requirements for MSM operations are consistent across different environments and configurations.
Simplified Maintenance: With the MSM gas calculation reused from REVM, we can focus on other critical aspects of the Kona client, such as performance optimization and feature enhancements.

Technical Details

To achieve this, we will need to:

Update the REVM version: We will update the REVM version in Kona to export the msm_required_gas method outside the bls12_381 module.
Modify the Kona client: We will modify the Kona client to utilize the reused MSM gas calculation from REVM.
Test and Verify: We will thoroughly test and verify the updated MSM gas calculation to ensure that it works as expected in different environments and configurations.

Additional Information

For more information on this proposal, please refer to the following GitHub pull request:

GitHub Pull Request: https://github.com/bluealloy/revm/pull/2179

Implementation Plan

The implementation plan for this proposal is as follows:

Update REVM version: Update the REVM version in Kona to export the msm_required_gas method outside the bls12_381 module.
Modify Kona client: Modify the Kona client to utilize the reused MSM gas calculation from REVM.
Test and Verify: Thoroughly test and verify the updated MSM gas calculation to ensure that it works as expected in different environments and configurations.
Review and Refine: Review the updated MSM gas calculation and refine it as necessary to ensure that it meets the requirements of the Kona client.

Conclusion

Frequently Asked Questions

This section provides answers to frequently asked questions related to the proposal to reuse the MSM gas calculation from REVM.

Q: What is the current implementation of MSM gas calculation in Kona?

A: The current implementation of MSM gas calculation in Kona is a custom method defined within the client. This is due to the fact that the msm_required_gas method in REVM is gated behind the blst feature flag, making it inaccessible in no_std environments.

Q: Why is the MSM gas calculation in REVM gated behind the `blst` feature flag?

A: The MSM gas calculation in REVM is gated behind the blst feature flag to ensure that it is only accessible in environments that support the bls12_381 module. This is a security measure to prevent unauthorized access to sensitive cryptographic operations.

Q: What are the benefits of reusing the MSM gas calculation from REVM?

A: Reusing the MSM gas calculation from REVM offers several benefits, including:

Improved Code Reusability: By leveraging the existing MSM gas calculation from REVM, we can reduce code duplication and improve the overall maintainability of the Kona client.
Enhanced Consistency: Reusing the MSM gas calculation ensures that the gas requirements for MSM operations are consistent across different environments and configurations.
Simplified Maintenance: With the MSM gas calculation reused from REVM, we can focus on other critical aspects of the Kona client, such as performance optimization and feature enhancements.

Q: How will the MSM gas calculation be updated in Kona?

A: The MSM gas calculation will be updated in Kona by updating the REVM version to export the msm_required_gas method outside the bls12_381 module. This will allow the Kona client to utilize the reused MSM gas calculation from REVM.

Q: What is the expected outcome of this proposal?

A: The expected outcome of this proposal is to successfully update the MSM gas calculation in Kona to reuse the existing MSM gas calculation from REVM. This will improve the maintainability, consistency, and performance of the Kona client.

Q: What are the next steps in implementing this proposal?

A: The next steps in implementing this proposal are:

Update REVM version: Update the REVM version in Kona to export the msm_required_gas method outside the bls12_381 module.
Modify Kona client: Modify the Kona client to utilize the reused MSM gas calculation from REVM.
Test and Verify: Thoroughly test and verify the updated MSM gas calculation to ensure that it works as expected in different environments and configurations.
Review and Refine: Review the updated MSM gas calculation and refine it as necessary to ensure that it meets the requirements of the Kona client.

Q: Who is responsible for implementing this proposal?

A: The implementation of this proposal will be led by the Kona development team, in collaboration with the REVM development team.

Q: What is the expected timeline for implementing this proposal?

A: The expected timeline for implementing this proposal is approximately 2-3 weeks, depending on the complexity of the updates and the availability of the development teams.

Q: How will the progress of this proposal be tracked?

A: The progress of this proposal will be tracked through regular updates on the Kona development blog and through regular meetings with the development teams.