public bool VerifyCertificate()
{
var hub = new Hub();
try
{
var target = new BroadcastClue(this.Type, this.CreationTime, this.Clue, null);
target.Export(hub.Writer, BufferPool.Shared);
hub.Writer.Complete();
var result = this.Certificate.Verify(hub.Reader.GetSequence());
hub.Reader.Complete();
return(result);
}
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 bool SetMetadata(BroadcastClue BroadcastClue)
{
lock (_lockObject)
{
var now = DateTime.UtcNow;
if (BroadcastClue == null ||
BroadcastClue.Type == null ||
(BroadcastClue.CreationTime.ToDateTime() - now).TotalMinutes > 30 ||
BroadcastClue.Certificate == null)
{
return(false);
}
if (!_BroadcastClues.TryGetValue(BroadcastClue.Type, out var dic))
{
dic = new Dictionary <OmniSignature, BroadcastClue>();
_BroadcastClues[BroadcastClue.Type] = dic;
}
var signature = BroadcastClue.Certificate.GetOmniSignature();
if (!dic.TryGetValue(signature, out var tempMetadata) ||
BroadcastClue.CreationTime.ToDateTime() > tempMetadata.CreationTime.ToDateTime())
{
if (!BroadcastClue.VerifyCertificate())
{
return(false);
}
dic[signature] = BroadcastClue;
}
return(true);
}
}
