feat(crypto): use the ziren keccak precompile and implement ziren keccak state #32816 #32996

[gzliudan]

Proposed changes

Ref:

• cmd/keeper: use the ziren keccak precompile ethereum/go-ethereum#32816
• crypto: implement ziren keccak state ethereum/go-ethereum#32996

Types of changes

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• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices apply)
• Regular KTLO or any of the maintaince work. e.g code style
• CICD Improvement

Impacted Components

Which part of the codebase this PR will touch base on,

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• Consensus
• Account
• Network
• Geth
• Smart Contract
• External components
• Not sure (Please specify below)

Checklist

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• This PR has sufficient test coverage (unit/integration test) OR I have provided reason in the PR description for not having test coverage
• Provide an end-to-end test plan in the PR description on how to manually test it on the devnet/testnet.
• Tested the backwards compatibility.
• Tested with XDC nodes running this version co-exist with those running the previous version.
• Relevant documentation has been updated as part of this PR
• N/A

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[Copilot]

Pull request overview

This pull request integrates the Ziren zkvm keccak precompile and implements build-tag-based conditional compilation to support both standard and Ziren-optimized keccak hashing implementations.

Changes:

• Added Ziren zkvm_runtime dependency for zk-optimized Keccak256 implementation
• Refactored keccak implementations into separate build-tag-controlled files (ziren vs non-ziren)
• Removed Keccak512 function (unused in the codebase)

Reviewed changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
go.mod	Added zkvm_runtime dependency as an indirect requirement
go.sum	Added checksums for the new zkvm_runtime dependency
crypto/keccak.go	Standard (non-ziren) implementation of Keccak functions using golang.org/x/crypto/sha3
crypto/keccak_ziren.go	Ziren-optimized implementation using zkvm_runtime precompile
crypto/crypto.go	Removed Keccak function implementations and unused imports (moved to build-tag-specific files)

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