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using System;
using Org.BouncyCastle.Asn1.X509;
namespace Org.BouncyCastle.Asn1.Ocsp
{
public class BasicOcspResponse
: Asn1Encodable
{
public static BasicOcspResponse GetInstance(object obj)
{
if (obj == null)
return null;
if (obj is BasicOcspResponse basicOcspResponse)
return basicOcspResponse;
return new BasicOcspResponse(Asn1Sequence.GetInstance(obj));
}
public static BasicOcspResponse GetInstance(Asn1TaggedObject obj, bool explicitly)
{
return new BasicOcspResponse(Asn1Sequence.GetInstance(obj, explicitly));
}
private readonly ResponseData m_tbsResponseData;
private readonly AlgorithmIdentifier m_signatureAlgorithm;
private readonly DerBitString m_signature;
private readonly Asn1Sequence m_certs;
public BasicOcspResponse(ResponseData tbsResponseData, AlgorithmIdentifier signatureAlgorithm,
DerBitString signature, Asn1Sequence certs)
{
m_tbsResponseData = tbsResponseData ?? throw new ArgumentNullException(nameof(tbsResponseData));
m_signatureAlgorithm = signatureAlgorithm ?? throw new ArgumentNullException(nameof(signatureAlgorithm));
m_signature = signature ?? throw new ArgumentNullException(nameof(signature));
m_certs = certs;
}
private BasicOcspResponse(Asn1Sequence seq)
{
int count = seq.Count;
if (count < 3 || count > 4)
throw new ArgumentException("Bad sequence size: " + count, nameof(seq));
int pos = 0;
m_tbsResponseData = ResponseData.GetInstance(seq[pos++]);
m_signatureAlgorithm = AlgorithmIdentifier.GetInstance(seq[pos++]);
m_signature = DerBitString.GetInstance(seq[pos++]);
m_certs = Asn1Utilities.ReadOptionalContextTagged(seq, ref pos, 0, true, Asn1Sequence.GetInstance);
if (pos != count)
throw new ArgumentException("Unexpected elements in sequence", nameof(seq));
}
public ResponseData TbsResponseData => m_tbsResponseData;
public AlgorithmIdentifier SignatureAlgorithm => m_signatureAlgorithm;
public DerBitString Signature => m_signature;
public byte[] GetSignatureOctets() => m_signature.GetOctets();
public Asn1Sequence Certs => m_certs;
/**
* Produce an object suitable for an Asn1OutputStream.
* <pre>
* BasicOcspResponse ::= Sequence {
* tbsResponseData ResponseData,
* signatureAlgorithm AlgorithmIdentifier,
* signature BIT STRING,
* certs [0] EXPLICIT Sequence OF Certificate OPTIONAL }
* </pre>
*/
public override Asn1Object ToAsn1Object()
{
Asn1EncodableVector v = new Asn1EncodableVector(4);
v.Add(m_tbsResponseData, m_signatureAlgorithm, m_signature);
v.AddOptionalTagged(true, 0, m_certs);
return new DerSequence(v);
}
}
}
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