feat(zig): Implement HDWallet + Transaction builder utilities via eth.zig#385
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feat(zig): Implement HDWallet + Transaction builder utilities via eth.zig#385koko1123 wants to merge 1 commit intoevmts:mainfrom
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….zig Add BIP-32/44 HD Wallet derivation and BIP-39 mnemonic support via eth.zig dependency. Implement transaction signing for EIP-1559, EIP-4844, and EIP-7702 types, plus sender recovery via ECDSA ecrecover. - Add eth.zig v0.2.3 as build dependency - Create HDWallet module with fromSeed, derivePath, deriveChild, deriveEthereum, getAddress, getPublicKey - Create Mnemonic utilities (generate, validate, toSeed, fromEntropy) - Create transaction_utils with sign/recover for all modern tx types - Fix pre-existing duplicate declarations in primitives/root.zig - 18 new tests (13 HDWallet + 5 transaction utils) Fixes evmts#353, Fixes evmts#368
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Description
Implements BIP-32/44 HD Wallet derivation and transaction signing/recovery utilities for Voltaire's Zig packages, powered by eth.zig v0.2.3.
HDWallet (
crypto/HDWallet/hdwallet.zig):HDWallet.fromSeed/derivePath/deriveChild/deriveEthereum/deriveEthereumFromSeedgetPrivateKey/getPublicKey(compressed SEC1) /getAddress/getChainCodeMnemonic.generate/generate24/toSeed/validate/fromEntropy128/fromEntropy256HARDENED,ETH_COIN_TYPETransaction builder utilities (
primitives/Transaction/transaction_utils.zig):signEip1559Transaction/signEip4844Transaction/signEip7702TransactionrecoverLegacySender/recoverEip1559Sender(ECDSA ecrecover via eth.zig)detectTransactionType(re-export)Bugfix: Removes duplicate
ConsensusSpec,ForkConfig,LightClientHeader,LightClientUpdate,SyncCommittee,SyncAggregate, andconsensusdeclarations inprimitives/root.zigthat caused compilation errors on main.AI Disclosure
AI Tools Used
Claude (Anthropic)
Prompts Used
Human Explanation
Voltaire needed HD wallet support (#353, critical priority) and transaction builder utilities (#368). Rather than implementing from scratch or wrapping libwally-core via C FFI, this PR adds eth.zig as a Zig package dependency - it already has complete, tested implementations of BIP-32/39/44 key derivation and secp256k1 ECDSA that have been validated against standard test vectors.
Related Issues
Fixes #353
Fixes #368
Type of Change
Testing
zig buildcompletes successfullyabandon...about->0x9858EfFD232B4033E47d90003D41EC34EcaEda94deriveEthereummatchesderiveEthereumFromSeed(same BIP-44 path)Note:
blockchain-testshas a pre-existing compilation error (BlockTagmember not found) unrelated to this PR.Checklist