HDWalletKit

HDWalletKit is a Swift framwork that enables you to create and use bitcoin HD wallet (Hierarchical Deterministic Wallets) in your own app.

You can check if the address generation is working right here.

Features

Mnemonic recovery phrease in BIP39

Include to your project

Cocoapods

pod 'HDWalletKit'

How to use

Generate seed and convert it to mnemonic sentence.

let entropy = Data(hex: "000102030405060708090a0b0c0d0e0f")
let mnemonic = Mnemonic.create(entropy: entropy)
print(mnemonic)
// abandon amount liar amount expire adjust cage candy arch gather drum buyer

let seed = Mnemonic.createSeed(mnemonic: mnemonic)
print(seed.toHexString())

PrivateKey and key derivation (BIP39)

let masterPrivateKey = PrivateKey(seed: seed, network: .main)

// m/44'
let purpose = masterPrivateKey.derived(at: 44, hardens: true)

// m/44'/0'
let coinType = purpose.derived(at: 0, hardens: true)

// m/44'/0'/0'
let account = coinType.derived(at: 0, hardens: true)

// m/44'/0'/0'/0
let change = account.derived(at: 0)

// m/44'/0'/0'/0
let firstPrivateKey = change.derived(at: 0)
print(firstPrivateKey.publicKey.address)

Generate keystore file

let data = "4e7936ba4a6bf40d0926ac9b0da0208d".data(using: .utf8)!
let password = "bYSqu6{X"
let keystore = try! KeystoreV3(seed: data, password: password)
let encodedData = keystore.encodedData()

Create your wallet and generate address

let entropy = Data(hex: "000102030405060708090a0b0c0d0e0f")
let mnemonic = Mnemonic.create(entropy: entropy)
let seed = Mnemonic.createSeed(mnemonic: mnemonic)
let network: Network = .main(.bitcoin)
let wallet = Wallet(seed: seed, network: network)
let account = wallet.generateAccount()
print(account)

Sign transaction by private key

let signer = EIP155Signer()
let rawTransaction1 = EthereumRawTransaction(
    value: Wei("10000000000000000")!,
    to: "0x91c79f31De5208fadCbF83f0a7B0A9b6d8aBA90F",
    gasPrice: 99000000000,
    gasLimit: 21000,
    nonce: 2
)
guard let signed = try? signer.hash(rawTransaction: rawTransaction1).toHexString() else { return }
print(signed)

License