public void electrumsv_PubKey_with_custom_words()
{
var seed = "bachelor nominee surprise visa oak negative anxiety observe catch sibling act hawk";
var customWords = "fred fruitbat";
var pub = "xpub661MyMwAqRbcH576xNa2EBv7NKLFqeGhwxqMVjLe7oKpQhdMEUjitTZzhEJRX2vAz8xn9x7V8vDhAJ87EoSgBoqNi5jCrdSrdwad6tb2trR";
var seedHash = "f53fcf294737ded129179824d437b9f393d00afddaabc58918e15cef9246bbdcbae20af66ae15420a66c2e7115b3066296dc3d9e893d3a41bff9fe47ca702f1d";
var iterations = 2048;
var hash = KzHashes.pbkdf2_hmac_sha512(seed.UTF8ToBytes(), $"electrum{customWords}".UTF8ToBytes(), iterations);
var key = KzExtPrivKey.MasterBip32(hash.Span);
Assert.Equal(seedHash, hash.ToHex());
Assert.Equal(pub, key.GetExtPubKey().ToString());
Assert.Equal(key, KzElectrumSv.GetMasterPrivKey(seed, customWords));
}
public void electrumsv_PubKey_without_custom_words()
{
var seed = "police off kit fee village rather kind when turn crowd fun that";
var customWords = (string)null;
var pub = "xpub661MyMwAqRbcGAH5Lmmp6Tq7qtwnDfkJnMjz96AsLZTJZbHyGZe4CL792x3Eu1cNVt7BVXTAQWeQb2HBgrbcd3QZKc8M2UcX2tXy7RkLGXx";
var seedHash = "df4ec2782c76449989f780483b57775fc6ac66c2c274abc27566b5427875529881faf0aac27aea4b294ea27e5213a44f28f8ef4fae66cd070e76bd6a6adeb08f";
var iterations = 2048;
var hash = KzHashes.pbkdf2_hmac_sha512(seed.UTF8ToBytes(), $"electrum{customWords}".UTF8ToBytes(), iterations);
var key = KzExtPrivKey.MasterBip32(hash.Span);
Assert.Equal(seedHash, hash.ToHex());
Assert.Equal(pub, key.GetExtPubKey().ToString());
Assert.Equal(key, KzElectrumSv.GetMasterPrivKey(seed));
}
public void TestCases()
{
foreach (var tv in tvs)
{
var seed = tv.m.HexToBytes();
var m = KzExtPrivKey.MasterBip32(seed);
foreach (var d in tv.tds)
{
var path = new KzKeyPath(d.p);
var priv = m.Derive(path);
var pub = priv.GetExtPubKey();
var spriv = priv.ToString();
var spub = pub.ToString();
Assert.Equal(d.prv, spriv);
Assert.Equal(d.pub, spub);
var data = new byte[74];
priv.Encode(data);
pub.Encode(data);
// Test private key
var b58key = new KzB58ExtPrivKey();
b58key.SetKey(priv);
Assert.Equal(d.prv, b58key.ToString());
var b58keyDecodeCheck = new KzB58ExtPrivKey(d.prv);
var checkKey = b58keyDecodeCheck.GetKey();
var eq = checkKey == priv;
// ensure a base58 decoded pubkey also matches
Assert.Equal(checkKey, priv);
if (priv.Hardened == false && path.Parent != null)
{
// Compare with public derivation
var pubkeyNew2 = m.Derive(path.Parent).GetExtPubKey().Derive((int)path.Indices.Last());
Assert.True(pubkeyNew2 != null);
Assert.Equal(pub, pubkeyNew2);
}
}
}
}