bip32

Introduction

This package is an implementation of the BIP32 specifications in the Go programming language. You can read the documentation here.

Example

package main

import (
    "fmt"

    "github.com/augcos/bip32"
    "github.com/augcos/bip39"
)

func main() {
    // we generate the random entropy
    entropy, _ := bip39.GenEntropy(256)
    // we generate the mnemonic corresponding to that entropy
    mnemonic, _ := bip39.GetMnemonicFromEntropy(entropy)
    // finally, we generate the 512-bit seed from the mnemonic, plus a passphrase
    seed, _ := bip39.GetSeedFromMnemonic(mnemonic, "passphrase")

    // we create the master key
    masterKey, _ := bip32.GenMasterKey(seed)
    // we derivate the child private key
    childKey, _ := bip32.ChildKeyDeriv(masterKey, 0)
    // we get the child public key from the private key
    pubChildKey, _ := bip32.Neuter(childKey)

    // we serialize the child public key
    serializedPubChildKey, _ := bip32.Serialization(pubChildKey)

    fmt.Println("Public Child Key:", serializedPubMasterKey)
}

References

• BIP32 specifications
• Mastering Bitcoin by Andreas M. Antonopoulos:
• Tyler Smith's BIP32 Go implementation