public static byte[] PublicKeyToAddressBytes(byte[] bytes)
{
var sha = Encoders.SHA256(bytes);
var ripemd = Hash160(sha);
var versioned = new byte[] { 0 }.Concat(ripemd).ToArray();
var checksum = DoubleSHA256(versioned).Take(4).ToArray();
var address = versioned.Concat(checksum).ToArray();
return(address);
}
public static Wallet FromMiniKey(string miniKey)
{
switch (miniKey.Length)
{
case 22:
case 30:
ValidateMiniKey(miniKey);
var privateKeyBytes = Encoders.SHA256(miniKey);
return(new Wallet(privateKeyBytes));
default:
throw new System.ArgumentException("Key must be 22 or 30 chars for minikeys");
}
}
static void ValidateMiniKey(string minikey)
{
if (!minikey.StartsWith("S"))
{
throw new System.ArgumentException("Missing S Prefix");
}
if (!(minikey.Length == 30 || minikey.Length == 22))
{
throw new System.ArgumentException("Invalid length, must be 30 or 22 chars");
}
if (Encoders.SHA256(minikey + "?")[0] != 0)
{
throw new System.ArgumentException("Failed to pass typo check");
}
}
public static Wallet FromPassphrase(string passphrase)
{
var privateKeyBytes = Encoders.SHA256(Encoding.ASCII.GetBytes(passphrase));
return(new Wallet(privateKeyBytes));
}
public string Hash160(bool compressed)
{
return(Encoders.BytesToHex(Encoders.Hash160(Encoders.SHA256(PublicKeyBytes(compressed)))));
}