public static async ValueTask <MulticastClue> Create(string type, Channel channel, Timestamp creationTime, Clue clue, OmniDigitalSignature digitalSignature, int miningLimit, TimeSpan miningTimeout, CancellationToken token)
{
OmniHashcash hashcash = null;
{
var hub = new Hub();
try
{
var target = new MulticastClue(type, channel, creationTime, clue, null, null);
target.Export(hub.Writer, BufferPool.Shared);
hub.Writer.Complete();
hashcash = await OmniMiner.Create(hub.Reader.GetSequence(), _utf8Encoding.Value.GetBytes(digitalSignature.GetOmniSignature().ToString()), OmniHashcashAlgorithmType.Sha2_256, miningLimit, miningTimeout, token);
hub.Reader.Complete();
}
finally
{
hub.Reset();
}
}
{
var hub = new Hub();
try
{
var target = new MulticastClue(type, channel, creationTime, clue, hashcash, null);
target.Export(hub.Writer, BufferPool.Shared);
hub.Writer.Complete();
var certificate = OmniCertificate.Create(digitalSignature, hub.Reader.GetSequence());
hub.Reader.Complete();
return(new MulticastClue(type, channel, creationTime, clue, hashcash, certificate));
}
finally
{
hub.Reset();
}
}
}
public static BroadcastClue Create(string type, Timestamp creationTime, Clue clue, OmniDigitalSignature digitalSignature)
{
var hub = new Hub();
try
{
var target = new BroadcastClue(type, creationTime, clue, null);
target.Export(hub.Writer, BufferPool.Shared);
hub.Writer.Complete();
var certificate = OmniCertificate.Create(digitalSignature, hub.Reader.GetSequence());
hub.Reader.Complete();
return(new BroadcastClue(type, creationTime, clue, certificate));
}
finally
{
hub.Reset();
}
}
public static OmniSignature GetOmniSignature(OmniCertificate certificate)
{
if (certificate is null)
{
throw new ArgumentNullException(nameof(certificate));
}
if (certificate.Name == null)
{
throw new ArgumentNullException(nameof(certificate.Name));
}
if (certificate.AlgorithmType == OmniDigitalSignatureAlgorithmType.EcDsa_P521_Sha2_256)
{
return(new OmniSignature(certificate.Name, CreateOmniHash(certificate.Name, certificate.PublicKey.Span, OmniHashAlgorithmType.Sha2_256)));
}
else
{
throw new NotSupportedException();
}
}
public static bool VerifyOmniCertificate(OmniCertificate certificate, ReadOnlySequence <byte> sequence)
{
return(certificate.Verify(sequence));
}
public static OmniCertificate CreateOmniCertificate(OmniDigitalSignature digitalSignature, ReadOnlySequence <byte> sequence)
{
return(OmniCertificate.Create(digitalSignature, sequence));
}