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using System;
using Org.BouncyCastle.Asn1.Crmf;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1.Cmp
{
/**
* <pre>
* OOBCertHash ::= SEQUENCE {
* hashAlg [0] AlgorithmIdentifier OPTIONAL,
* certId [1] CertId OPTIONAL,
* hashVal BIT STRING
* -- hashVal is calculated over the DER encoding of the
* -- self-signed certificate with the identifier certID.
* }
* </pre>
*/
public class OobCertHash
: Asn1Encodable
{
public static OobCertHash GetInstance(object obj)
{
if (obj == null)
return null;
if (obj is OobCertHash oobCertHash)
return oobCertHash;
return new OobCertHash(Asn1Sequence.GetInstance(obj));
}
public static OobCertHash GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit)
{
return new OobCertHash(Asn1Sequence.GetInstance(taggedObject, declaredExplicit));
}
private readonly AlgorithmIdentifier m_hashAlg;
private readonly CertId m_certId;
private readonly DerBitString m_hashVal;
private OobCertHash(Asn1Sequence seq)
{
int index = seq.Count - 1;
m_hashVal = DerBitString.GetInstance(seq[index--]);
for (int i = index; i >= 0; i--)
{
Asn1TaggedObject tObj = (Asn1TaggedObject)seq[i];
if (tObj.HasContextTag(0))
{
m_hashAlg = AlgorithmIdentifier.GetInstance(tObj, true);
}
else if (tObj.HasContextTag(1))
{
m_certId = CertId.GetInstance(tObj, true);
}
else
{
throw new ArgumentException("unknown tag: " + Asn1Utilities.GetTagText(tObj));
}
}
}
public virtual CertId CertID => m_certId;
public virtual AlgorithmIdentifier HashAlg => m_hashAlg;
public virtual DerBitString HashVal => m_hashVal;
/**
* <pre>
* OobCertHash ::= SEQUENCE {
* hashAlg [0] AlgorithmIdentifier OPTIONAL,
* certId [1] CertId OPTIONAL,
* hashVal BIT STRING
* -- hashVal is calculated over the Der encoding of the
* -- self-signed certificate with the identifier certID.
* }
* </pre>
* @return a basic ASN.1 object representation.
*/
public override Asn1Object ToAsn1Object()
{
Asn1EncodableVector v = new Asn1EncodableVector(3);
v.AddOptionalTagged(true, 0, m_hashAlg);
v.AddOptionalTagged(true, 1, m_certId);
v.Add(m_hashVal);
return new DerSequence(v);
}
}
}
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