BcTlsEd25519Signer
using Org.BouncyCastle.Crypto.Parameters;
using Org.BouncyCastle.Crypto.Signers;
using System;
namespace Org.BouncyCastle.Tls.Crypto.Impl.BC
{
    public class BcTlsEd25519Signer : BcTlsSigner
    {
        public BcTlsEd25519Signer(BcTlsCrypto crypto, Ed25519PrivateKeyParameters privateKey)
            : base(crypto, privateKey)
        {
        }
        public override TlsStreamSigner GetStreamSigner(SignatureAndHashAlgorithm algorithm)
        {
            if (algorithm == null || SignatureScheme.From(algorithm) != 2055)
                throw new InvalidOperationException("Invalid algorithm: " + algorithm?.ToString());
            Ed25519Signer ed25519Signer = new Ed25519Signer();
            ed25519Signer.Init(true, m_privateKey);
            return new BcTlsStreamSigner(ed25519Signer);
        }
    }
}