X509V1CertificateGenerator
Class to Generate X509V1 Certificates.
using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Math;
using System;
using System.Collections.Generic;
namespace Org.BouncyCastle.X509
{
public class X509V1CertificateGenerator
{
private V1TbsCertificateGenerator tbsGen;
public IEnumerable<string> SignatureAlgNames => X509Utilities.GetAlgNames();
public X509V1CertificateGenerator()
{
tbsGen = new V1TbsCertificateGenerator();
}
public void Reset()
{
tbsGen = new V1TbsCertificateGenerator();
}
public void SetSerialNumber(BigInteger serialNumber)
{
if (serialNumber.SignValue <= 0)
throw new ArgumentException("serial number must be a positive integer", "serialNumber");
tbsGen.SetSerialNumber(new DerInteger(serialNumber));
}
public void SetIssuerDN(X509Name issuer)
{
tbsGen.SetIssuer(issuer);
}
public void SetNotBefore(DateTime date)
{
tbsGen.SetStartDate(new Time(date));
}
public void SetNotAfter(DateTime date)
{
tbsGen.SetEndDate(new Time(date));
}
public void SetSubjectDN(X509Name subject)
{
tbsGen.SetSubject(subject);
}
public void SetPublicKey(AsymmetricKeyParameter publicKey)
{
try {
tbsGen.SetSubjectPublicKeyInfo(SubjectPublicKeyInfoFactory.CreateSubjectPublicKeyInfo(publicKey));
} catch (Exception ex) {
throw new ArgumentException("unable to process key - " + ex.ToString());
}
}
public X509Certificate Generate(ISignatureFactory signatureFactory)
{
AlgorithmIdentifier algorithmIdentifier = (AlgorithmIdentifier)signatureFactory.AlgorithmDetails;
tbsGen.SetSignature(algorithmIdentifier);
TbsCertificateStructure tbsCertificateStructure = tbsGen.GenerateTbsCertificate();
DerBitString sig = X509Utilities.GenerateSignature(signatureFactory, tbsCertificateStructure);
return new X509Certificate(new X509CertificateStructure(tbsCertificateStructure, algorithmIdentifier, sig));
}
}
}