CertificationRequest.cs :  » PDF » iTextSharp » Org » BouncyCastle » Asn1 » Pkcs » C# / CSharp Open Source

using System;

using Org.BouncyCastle.Asn1.X509;

namespace Org.BouncyCastle.Asn1.Pkcs{
    /**
     * Pkcs10 Certfication request object.
     * <pre>
     * CertificationRequest ::= Sequence {
     *   certificationRequestInfo  CertificationRequestInfo,
     *   signatureAlgorithm        AlgorithmIdentifier{{ SignatureAlgorithms }},
     *   signature                 BIT STRING
     * }
     * </pre>
     */
    public class CertificationRequest
        : Asn1Encodable
    {
        protected CertificationRequestInfo  reqInfo;
        protected AlgorithmIdentifier    sigAlgId;
        protected DerBitString        sigBits;

    public static CertificationRequest GetInstance(
      object obj)
    {
      if (obj is CertificationRequest)
        return (CertificationRequest) obj;

      if (obj is Asn1Sequence)
        return new CertificationRequest((Asn1Sequence) obj);

      throw new ArgumentException("Unknown object in factory: " + obj.GetType().FullName, "obj");
    }

    protected CertificationRequest()
        {
        }

    public CertificationRequest(
            CertificationRequestInfo  requestInfo,
            AlgorithmIdentifier      algorithm,
            DerBitString        signature)
        {
            this.reqInfo = requestInfo;
            this.sigAlgId = algorithm;
            this.sigBits = signature;
        }

    public CertificationRequest(
            Asn1Sequence seq)
        {
      if (seq.Count != 3)
        throw new ArgumentException("Wrong number of elements in sequence", "seq");

      reqInfo = CertificationRequestInfo.GetInstance(seq[0]);
            sigAlgId = AlgorithmIdentifier.GetInstance(seq[1]);
            sigBits = DerBitString.GetInstance(seq[2]);
        }

    public CertificationRequestInfo GetCertificationRequestInfo()
        {
            return reqInfo;
        }

    public AlgorithmIdentifier SignatureAlgorithm
    {
      get { return sigAlgId; }
    }

    public DerBitString Signature
    {
      get { return sigBits; }
    }

    public override Asn1Object ToAsn1Object()
        {
      return new DerSequence(reqInfo, sigAlgId, sigBits);
        }
    }
}