SubjectKeyIdentifierStructure.cs :  » PDF » iTextSharp » Org » BouncyCastle » X509 » Extension » C# / CSharp Open Source

using System;

using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Security.Certificates;

namespace Org.BouncyCastle.X509.Extension{
  /**
   * A high level subject key identifier.
   */
  public class SubjectKeyIdentifierStructure
    : SubjectKeyIdentifier
  {
//    private AuthorityKeyIdentifier authKeyID;

    /**
     * Constructor which will take the byte[] returned from getExtensionValue()
     * 
     * @param encodedValue a DER octet encoded string with the extension structure in it.
     * @throws IOException on parsing errors.
     */
    public SubjectKeyIdentifierStructure(
      Asn1OctetString encodedValue)
      : base((Asn1OctetString) X509ExtensionUtilities.FromExtensionValue(encodedValue))
    {
    }

    private static Asn1OctetString FromPublicKey(
      AsymmetricKeyParameter pubKey)
    {
      try
      {
        SubjectPublicKeyInfo info = SubjectPublicKeyInfoFactory.CreateSubjectPublicKeyInfo(pubKey);

        return (Asn1OctetString) new SubjectKeyIdentifier(info).ToAsn1Object();
      }
      catch (Exception e)
      {
        throw new CertificateParsingException("Exception extracting certificate details: " + e.ToString());
      }
    }

    public SubjectKeyIdentifierStructure(
      AsymmetricKeyParameter pubKey)
      : base(FromPublicKey(pubKey))
    {
    }
  }
}