Evm wallet generation

[RandomCoderTinker]

Fixes incorrect EVM wallet derivation logic — now compatible with MetaMask/TrustWallet

Summary

The original WalletManager was generating wallet data (mnemonic, private key, public key, address), but it wasn't EVM-compatible — meaning when importing the generated keys into services like MetaMask or TrustWallet, it would result in a different address or a failed import.

Problem

• The wallet derivation logic was custom or partial, and didn't follow the BIP-44 standard for Ethereum wallets.
• As a result, addresses and private keys were not matching what EVM-based services expect.

What I Changed

• Implemented a new HDWallet class to handle BIP-44 derivation path m/44'/60'/0'/0/0 — the standard for Ethereum.
• Updated KeyPair::fromMnemonic() logic to derive the correct private/public key pair and address.
• Verified the output using a test script and successfully imported the wallet into MetaMask.
• Added a test file (TestWallet.php) to demonstrate correct key generation and compatibility.

Example Output (after fix)

address: 0x64d002589b9e42f57bdbc6cbd8f39071436a2087
public_key: 03b54c... (valid compressed key)
private_key: 5ba34f... (valid 64-character hex string)
mnemonic: giraffe kidney home unlock ...

Result

✅ Wallets generated from mnemonics are now:

• Valid
• EVM-compatible
• Importable into MetaMask, TrustWallet, and other Ethereum wallets.

[RandomCoderTinker]

Still new to using GitHub properly - only ever used it to store code, so I apologise for all the requests.

This update allows EVM compatible wallet generation that can be imported into services like metamask, when i was testing the codebase you created, upon importing the private key and Mnemonic into MetaMask it was showing a different address.

This update follows all BIP standards and creates compatible address/keys/Mnemonics that can be tested with https://chaintool.tech/generateWallet/evmWallet and imported correctly.

[infosave2007]

Yes, I’ve reached the stage of integration with wallets like MetaMask, and I’ve implemented compatibility along with full API integration. When a network is added, the wallet is automatically added to the database, and balance synchronization is performed. Please wait a bit — I’ll finish debugging everything and complete the synchronization with mempool nodes. Try RPC https://wallet.coursefactory.pro/wallet/wallet_api.php id - 20250808 VFLW