Hierarchical deterministic keypairs and bech32 addresses for the X-Chain and P-Chain on the Avalanche Primary Network

everest-bip44.ts

// imports
import {
  KeyChain as AVMKeyChain,
  KeyPair as AVMKeyPair,
} from "avalanche/dist/apis/avm"
import {
  KeyChain as PlatformVMKeyChain,
  KeyPair as PlatformVMKeyPair
} from "avalanche/dist/apis/platformvm"
import { Buffer } from 'buffer/'
import * as bip39 from "bip39"
import HDKey from 'hdkey'

// the goods
const main = async (): Promise<any> => {
  const AVAX_ACCOUNT_PATH: string = `m/44'/9000'/0'`
  const mnemonic: string = bip39.generateMnemonic(256)
  console.log(`Mnemonic: ${mnemonic}`)

  const seed: globalThis.Buffer = bip39.mnemonicToSeedSync(mnemonic)
  const hdkey: HDKey = HDKey.fromMasterSeed(seed)
  let derivationPath: string = `${AVAX_ACCOUNT_PATH}/0`
  console.log("X ADDRESSES")
  for (let i: number = 0; i < 5; i++) {
    let key: HDKey = hdkey.derive(`${derivationPath}/${i}`) as HDKey
    let keychain: AVMKeyChain = new AVMKeyChain("avax", 'X')
    let pkHex: string = key.privateKey.toString('hex')
    let pkBuf: Buffer = new Buffer(pkHex, 'hex')
    let addr: AVMKeyPair = keychain.importKey(pkBuf)
    console.log(`${i} Address: ${addr.getAddressString()}`)
    console.log(`${i} Public Key: ${key.publicKey.toString('hex')}`)
    console.log(`${i} Private Key: ${key.privateKey.toString('hex')}`)
    console.log("--")
  }
  console.log("+++++++++++++++++++++++++++++++++++")
  console.log("P ADDRESSES")
  for (let i: number = 0; i < 5; i++) {
    let key = hdkey.derive(`${derivationPath}/${i}`) as HDKey
    let keychain: PlatformVMKeyChain = new PlatformVMKeyChain('avax', 'P')
    let pkHex: string = key.privateKey.toString('hex')
    let pkBuf: Buffer = new Buffer(pkHex, 'hex')
    let addr: PlatformVMKeyPair = keychain.importKey(pkBuf)
    console.log(`${i} Address: ${addr.getAddressString()}`)
    console.log(`${i} Public Key: ${key.publicKey.toString('hex')}`)
    console.log(`${i} Private Key: ${key.privateKey.toString('hex')}`)
    console.log("--")
  }
}
main()