func ComputePrivateKeyForAddress(addr *bitcoin.Address) string {
mpk := bitcoin.LoadMPK(addr.MPKId)
if mpk == nil {
panic(NewError("Failed to find mpk %v", addr.MPKId))
}
masterPrivKey, _ := masterPrivKeys.Get(mpk.PubKey).(string)
if masterPrivKey == "" {
panic(NewError("Failed to find privkey for mpk %v", mpk.PubKey))
}
privKey := bitcoin.ComputePrivateKey(masterPrivKey, mpk.Chain, addr.ChainPath, addr.ChainIdx)
derivedAddr := bitcoin.ComputeAddressForPrivKey(addr.Coin, privKey)
if addr.Address != derivedAddr {
panic(NewError("Computed invalid private key for address. addr: %v, derivedAddr: %v", addr.Address, derivedAddr))
}
return privKey
}
func makeMasters() {
pubKey, chain, mPrivKey := bitcoin.ComputeMastersFromSeed("this is a test")
Info(pubKey, ", ", chain, ", ", mPrivKey)
// Now create an address for path "0/1/1"
privKey := bitcoin.ComputePrivateKey(mPrivKey, chain, "0/1", 1)
addr := bitcoin.ComputeAddressForPrivKey("BTC", privKey)
// See that the addr matches the other derivation
addr2 := bitcoin.ComputeAddress("BTC", pubKey, chain, "0/1", 1)
if addr == addr2 {
Info("Address matches: %v", addr)
} else {
Warn("Address does not match: %v vs %v", addr, addr2)
}
}
func makeWIF() {
privKey := "0C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D"
wif := bitcoin.ComputeWIF("BTC", privKey, true)
Info("WIF: %v", wif)
addr := bitcoin.ComputeAddressForPrivKey("BTC", privKey)
Info("addr: %v", addr)
pubKey := bitcoin.PubKeyBytesFromPrivKeyBytes(hexDecode(privKey), false)
Info("pubKey: %v", hexEncode(pubKey))
addr = bitcoin.AddrFromPubKeyBytes("BTC", pubKey)
Info("addr2: %v", addr)
message := "this is a message"
signature := bitcoin.SignMessage(privKey, message, true)
Info("signature: %v", signature)
}