// New random signer
public Signer()
{
var seed = new byte[32];
using (var rnd = new RNGCryptoServiceProvider()) {
rnd.GetBytes(seed);
}
Ed25519.Ed25519.PrehashedKeyPairFromSeed(out _, out PrivateKeyBytes, seed);
Ed25519.Ed25519.PublicKeyFromPrehashedPrivateKey(out PublicKeyBytes, PrivateKeyBytes);
PrivateKey = Pack58.Pack(PrivateKeyBytes);
PublicKey = Pack58.Pack(PublicKeyBytes);
}
// New signer from prehashed private key
public Signer(byte[] privateKey)
{
if ((privateKey?.Length ?? 0) != 64)
{
throw new ArgumentException("Private key should be 64 bytes length (pre-hashed)");
}
PrivateKeyBytes = new byte[64];
Ed25519.Ed25519.PublicKeyFromPrehashedPrivateKey(out PublicKeyBytes, privateKey);
Array.Copy(privateKey, PrivateKeyBytes, 64);
PrivateKey = Pack58.Pack(PrivateKeyBytes);
PublicKey = Pack58.Pack(PublicKeyBytes);
}