internal Certificate(DigitalSignature digitalSignature, Stream stream)
{
if (digitalSignature == null)
{
throw new ArgumentNullException("digitalSignature");
}
byte[] signature;
if (digitalSignature.DigitalSignatureAlgorithm == DigitalSignatureAlgorithm.EcDsaP521_Sha256)
{
signature = EcDsaP521_Sha256.Sign(digitalSignature.PrivateKey, stream);
}
else if (digitalSignature.DigitalSignatureAlgorithm == DigitalSignatureAlgorithm.Rsa2048_Sha256)
{
signature = Rsa2048_Sha256.Sign(digitalSignature.PrivateKey, stream);
}
else
{
return;
}
this.Nickname = digitalSignature.Nickname;
this.DigitalSignatureAlgorithm = digitalSignature.DigitalSignatureAlgorithm;
this.PublicKey = digitalSignature.PublicKey;
this.Signature = signature;
}
public static string GetSignature(DigitalSignature digitalSignature)
{
if (digitalSignature == null || digitalSignature.Nickname == null || digitalSignature.PublicKey == null)
{
return(null);
}
try
{
if (digitalSignature.DigitalSignatureAlgorithm == DigitalSignatureAlgorithm.EcDsaP521_Sha256 ||
digitalSignature.DigitalSignatureAlgorithm == DigitalSignatureAlgorithm.Rsa2048_Sha256)
{
using (BufferStream bufferStream = new BufferStream(_bufferManager))
{
Signature.WriteString(bufferStream, digitalSignature.Nickname);
bufferStream.Write(digitalSignature.PublicKey, 0, digitalSignature.PublicKey.Length);
bufferStream.Seek(0, SeekOrigin.Begin);
var signature = digitalSignature.Nickname + "@" + NetworkConverter.ToBase64UrlString(Sha256.ComputeHash(bufferStream));
return(_signatureCache.GetValue(signature, digitalSignature));
}
}
return(null);
}
catch (Exception)
{
return(null);
}
}
public virtual void CreateCertificate(DigitalSignature digitalSignature)
{
if (digitalSignature == null)
{
this.Certificate = null;
}
else
{
using (var stream = this.GetCertificateStream())
{
this.Certificate = new Certificate(digitalSignature, stream);
}
}
}
public static Stream ToDigitalSignatureStream(DigitalSignature item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
try
{
return(Converter.ToStream <DigitalSignature>(item));
}
catch (Exception)
{
return(null);
}
}
public static Stream ToDigitalSignatureStream(DigitalSignature item)
{
return(Converter.ToDigitalSignatureStream(item));
}