public X509Certificate(
X509CertificateStructure c)
{
this.c = c;
try
{
Asn1OctetString str = this.GetExtensionValue(new DerObjectIdentifier("2.5.29.19"));
if (str != null)
{
basicConstraints = BasicConstraints.GetInstance(
X509ExtensionUtilities.FromExtensionValue(str));
}
}
catch (Exception e)
{
throw new CertificateParsingException("cannot construct BasicConstraints: " + e);
}
try
{
Asn1OctetString str = this.GetExtensionValue(new DerObjectIdentifier("2.5.29.15"));
if (str != null)
{
DerBitString bits = DerBitString.GetInstance(
X509ExtensionUtilities.FromExtensionValue(str));
byte[] bytes = bits.GetBytes();
int length = (bytes.Length * 8) - bits.PadBits;
keyUsage = new bool[(length < 9) ? 9 : length];
for (int i = 0; i != length; i++)
{
// keyUsage[i] = (bytes[i / 8] & (0x80 >>> (i % 8))) != 0;
keyUsage[i] = (bytes[i / 8] & (0x80 >> (i % 8))) != 0;
}
}
else
{
keyUsage = null;
}
}
catch (Exception e)
{
throw new CertificateParsingException("cannot construct KeyUsage: " + e);
}
}
public static BasicConstraints GetInstance(Asn1TaggedObject obj, bool explicitly)
{
return(BasicConstraints.GetInstance(Asn1Sequence.GetInstance(obj, explicitly)));
}
/// <summary>
/// Initializes BasicConstraints from a <see cref="Org.BouncyCastle.Asn1.X509.BasicConstraints"/>
/// </summary>
/// <param name="basicContraints"><see cref="Org.BouncyCastle.Asn1.X509.BasicConstraints"/></param>
public BasicConstraints(Org.BouncyCastle.Asn1.X509.BasicConstraints basicContraints)
{
this.X509BasicContraints = basicContraints;
}
public void AddBasicContraintsOid(bool isCA, int pathLenConstraint)
{
BasicConstraints constraints = new BasicConstraints(pathLenConstraint);
generator.AddExtension(X509Extensions.BasicConstraints, true, constraints);
}