public static void Sign(this ECDsa key, IVerificableMessage message)
{
var meta = message.GetMetaHeader();
IVerificationHeader verify = message is IRequest ?
new RequestVerificationHeader() : message is IResponse ?
new ResponseVerificationHeader() : throw new InvalidOperationException("unsupport message type");
var verifyOrigin = message.GetVerificationHeader();
if (verifyOrigin is null)
{
verify.BodySignature = key.SignMessagePart(message.GetBody());
}
verify.MetaSignature = key.SignMessagePart(meta);
verify.OriginSignature = key.SignMessagePart(verifyOrigin);
verify.SetOrigin(verifyOrigin);
message.SetVerificationHeader(verify);
}
public void Sign(ECDsa key)
{
Signature = key.SignMessagePart(Body);
}