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using System;
using Org.BouncyCastle.Asn1.Pkcs;
using Org.BouncyCastle.Asn1.X509;
namespace Org.BouncyCastle.Asn1.Crmf
{
public class EncKeyWithID
: Asn1Encodable
{
public static EncKeyWithID GetInstance(object obj)
{
if (obj == null)
return null;
if (obj is EncKeyWithID encKeyWithID)
return encKeyWithID;
return new EncKeyWithID(Asn1Sequence.GetInstance(obj));
}
public static EncKeyWithID GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit)
{
return new EncKeyWithID(Asn1Sequence.GetInstance(taggedObject, declaredExplicit));
}
private static Asn1Encodable GetOptionalChoice(Asn1Encodable element)
{
var _string = DerUtf8String.GetOptional(element);
if (_string != null)
return _string;
return GeneralName.GetInstance(element);
}
private readonly PrivateKeyInfo m_privKeyInfo;
private readonly Asn1Encodable m_identifier;
private EncKeyWithID(Asn1Sequence seq)
{
int count = seq.Count;
if (count < 1 || count > 2)
throw new ArgumentException("Bad sequence size: " + count, nameof(seq));
m_privKeyInfo = PrivateKeyInfo.GetInstance(seq[0]);
if (count > 1)
{
m_identifier = GetOptionalChoice(seq[1]);
}
}
private EncKeyWithID(PrivateKeyInfo privKeyInfo, Asn1Encodable identifier)
{
m_privKeyInfo = privKeyInfo ?? throw new ArgumentNullException(nameof(privKeyInfo));
m_identifier = identifier;
}
public EncKeyWithID(PrivateKeyInfo privKeyInfo)
: this(privKeyInfo, (Asn1Encodable)null)
{
}
public EncKeyWithID(PrivateKeyInfo privKeyInfo, DerUtf8String str)
: this(privKeyInfo, (Asn1Encodable)str)
{
}
public EncKeyWithID(PrivateKeyInfo privKeyInfo, GeneralName generalName)
: this(privKeyInfo, (Asn1Encodable)generalName)
{
}
public virtual PrivateKeyInfo PrivateKey => m_privKeyInfo;
public virtual bool HasIdentifier => m_identifier != null;
public virtual bool IsIdentifierUtf8String => m_identifier is DerUtf8String;
public virtual Asn1Encodable Identifier => m_identifier;
/**
* <pre>
* EncKeyWithID ::= SEQUENCE {
* privateKey PrivateKeyInfo,
* identifier CHOICE {
* string UTF8String,
* generalName GeneralName
* } OPTIONAL
* }
* </pre>
* @return
*/
public override Asn1Object ToAsn1Object()
{
return m_identifier == null
? new DerSequence(m_privKeyInfo)
: new DerSequence(m_privKeyInfo, m_identifier);
}
}
}
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