//TODO: Abstract out common code to another method
private async Task InitAsync(
ISignatureFactory signatureFactory,
X509Name subject,
AsymmetricKeyParameter publicKey,
Asn1Set attributes)
{
this.sigAlgId = (AlgorithmIdentifier)signatureFactory.AlgorithmDetails;
SubjectPublicKeyInfo pubInfo = SubjectPublicKeyInfoFactory.CreateSubjectPublicKeyInfo(publicKey);
this.reqInfo = new CertificationRequestInfo(subject, pubInfo, attributes);
IStreamCalculator streamCalculator = signatureFactory.CreateCalculator();
byte[] reqInfoData = reqInfo.GetDerEncoded();
streamCalculator.Stream.Write(reqInfoData, 0, reqInfoData.Length);
Platform.Dispose(streamCalculator.Stream);
// Generate Signature.
var signedBits = await streamCalculator.GetResultAsync();
sigBits = new DerBitString(((IBlockResult)signedBits).Collect());
}
// TODO: Abstract out common code to another method
/// <summary>
/// Generate a new X509Certificate using the passed in SignatureCalculator.
/// </summary>
/// <param name="signatureCalculatorFactory">A signature calculator factory with the necessary algorithm details.</param>
/// <returns>An X509Certificate.</returns>
public async Task <X509Certificate> GenerateAsync(ISignatureFactory signatureCalculatorFactory)
{
tbsGen.SetSignature((AlgorithmIdentifier)signatureCalculatorFactory.AlgorithmDetails);
if (!extGenerator.IsEmpty)
{
tbsGen.SetExtensions(extGenerator.Generate());
}
TbsCertificateStructure tbsCert = tbsGen.GenerateTbsCertificate();
IStreamCalculator streamCalculator = signatureCalculatorFactory.CreateCalculator();
byte[] encoded = tbsCert.GetDerEncoded();
streamCalculator.Stream.Write(encoded, 0, encoded.Length);
Platform.Dispose(streamCalculator.Stream);
var signedBits = await streamCalculator.GetResultAsync();
return(GenerateJcaObject(tbsCert, (AlgorithmIdentifier)signatureCalculatorFactory.AlgorithmDetails, ((IBlockResult)signedBits).Collect()));
}