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@quantabit/multi-chain-wallet-sdk

v1.1.0

Published

QuantaBit Multi-Chain Wallet SDK - Unified signatures and key-pair operations across EVM, Solana and Cosmos chains

Readme

@quantabit/multi-chain-wallet-sdk

QuantaBit 多链钱包底层密码学 SDK:EVM / Solana / Cosmos 的地址校验、BIP44/SLIP-0010 离线派生、消息签名与验签。

本包是纯密码学库(无 React UI)。业务绑定/余额请使用 @quantabit/wallet-sdk,创建向导请使用 @quantabit/wallet-create-sdk。

Features

  • 真实 BIP44 / SLIP-0010 派生:EVM/Cosmos 使用 @scure/bip32(secp256k1),Solana 使用 ed25519-hd-key
  • 真实签名验签:EVM personal_sign、Solana Ed25519、Cosmos secp256k1(sha256)
  • 地址校验:EVM hex、Solana Base58(32B)、Cosmos Bech32
  • 本地执行:私钥与种子不会上传网络

Installation

npm install @quantabit/multi-chain-wallet-sdk

Quick Start

1. 地址校验

import { MultiChainWalletAdapter } from '@quantabit/multi-chain-wallet-sdk';

const adapter = new MultiChainWalletAdapter();
adapter.isValidAddress('evm', '0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266'); // true

2. BIP44 派生 + 签名验签

import { MultiChainKeyPairGenerator, MultiChainWalletAdapter } from '@quantabit/multi-chain-wallet-sdk';
import * as bip39 from 'bip39';

const seedHex = (await bip39.mnemonicToSeed('your twelve word mnemonic ...')).toString('hex');
const generator = new MultiChainKeyPairGenerator();
const adapter = new MultiChainWalletAdapter();

const evm = generator.deriveKeyPair('evm', seedHex); // m/44'/60'/0'/0/0
const signed = adapter.signMessage('evm', 'Auth Request', evm.privateKey);
const ok = adapter.verifySignature('evm', signed.message, signed.signature, signed.address);

3. 链默认派生路径

| Chain | Path | |--------|---------------------| | EVM | m/44'/60'/0'/0/0 | | Solana | m/44'/501'/0'/0' | | Cosmos | m/44'/118'/0'/0/0 |

API Notes

  • signMessage(chain, message, privateKey, opts?) — 推荐入口
  • signMessageMock — 已弃用别名,必须提供私钥,内部转调 signMessage
  • verifySignature — 校验 message ↔ signature ↔ address 密码学绑定,不再只做格式检查

License

MIT