public GeneratedKeyPair GenerateKeyPair(byte[] seed = null)
{
DataEncoder encoder = Encoders.Base58;
var byt = seed == null?RandomUtils.GetBytes(bytesSupportedbyEd25519) : seed;
var pk = Ed25519.PublicKeyFromSeed(byt);
var sk = Ed25519.ExpandedPrivateKeyFromSeed(byt);
// tweetnacl's generated secret key is the secret key + public key (resulting in a 64-byte buffer)
// therefore require slicing
var _sk = Slice(sk, bytesSupportedbyEd25519);
return(new GeneratedKeyPair {
PrivateKey = encoder.EncodeData(_sk),
PublicKey = encoder.EncodeData(pk),
ExpandedPrivateKey = encoder.EncodeData(sk)
});
}