AuthorityKeyIdentifier
using Org.BouncyCastle.Asn1.Oiw;
using Org.BouncyCastle.Math;
using Org.BouncyCastle.Security;
using Org.BouncyCastle.Utilities.Encoders;
using System;
namespace Org.BouncyCastle.Asn1.X509
{
public class AuthorityKeyIdentifier : Asn1Encodable
{
private readonly Asn1OctetString m_keyIdentifier;
private readonly GeneralNames ;
private readonly DerInteger ;
public GeneralNames AuthorityCertIssuer => m_authorityCertIssuer;
public BigInteger AuthorityCertSerialNumber => m_authorityCertSerialNumber?.Value;
public Asn1OctetString KeyIdentifier => m_keyIdentifier;
public static AuthorityKeyIdentifier GetInstance(object obj)
{
if (obj == null)
return null;
AuthorityKeyIdentifier authorityKeyIdentifier = obj as AuthorityKeyIdentifier;
if (authorityKeyIdentifier != null)
return authorityKeyIdentifier;
X509Extension x509Extension = obj as X509Extension;
if (x509Extension != null)
return GetInstance(X509Extension.ConvertValueToObject(x509Extension));
return new AuthorityKeyIdentifier(Asn1Sequence.GetInstance(obj));
}
public static AuthorityKeyIdentifier GetInstance(Asn1TaggedObject obj, bool explicitly)
{
return new AuthorityKeyIdentifier(Asn1Sequence.GetInstance(obj, explicitly));
}
public static AuthorityKeyIdentifier GetTagged(Asn1TaggedObject taggedObject, bool declaredExplicit)
{
return new AuthorityKeyIdentifier(Asn1Sequence.GetTagged(taggedObject, declaredExplicit));
}
public static AuthorityKeyIdentifier FromExtensions(X509Extensions extensions)
{
return GetInstance(X509Extensions.GetExtensionParsedValue(extensions, X509Extensions.AuthorityKeyIdentifier));
}
[Obsolete("Use 'GetInstance' instead")]
protected internal AuthorityKeyIdentifier(Asn1Sequence seq)
{
int count = seq.Count;
int sequencePosition = 0;
if (count < 0 || count > 3)
throw new ArgumentException("Bad sequence size: " + count.ToString(), "seq");
m_keyIdentifier = Asn1Utilities.ReadOptionalContextTagged(seq, ref sequencePosition, 0, false, Asn1OctetString.GetTagged);
m_authorityCertIssuer = Asn1Utilities.ReadOptionalContextTagged(seq, ref sequencePosition, 1, false, GeneralNames.GetTagged);
m_authorityCertSerialNumber = Asn1Utilities.ReadOptionalContextTagged(seq, ref sequencePosition, 2, false, DerInteger.GetTagged);
if (sequencePosition != count)
throw new ArgumentException("Unexpected elements in sequence", "seq");
}
[Obsolete("Use 'X509ExtensionUtilities' methods instead")]
public AuthorityKeyIdentifier(SubjectPublicKeyInfo spki)
: this(spki, null, null)
{
}
[Obsolete("Use 'X509ExtensionUtilities' methods instead")]
public AuthorityKeyIdentifier(SubjectPublicKeyInfo spki, GeneralNames name, BigInteger serialNumber)
: this(DigestUtilities.CalculateDigest(OiwObjectIdentifiers.IdSha1, spki.PublicKey.GetBytes()), name, serialNumber)
{
}
public AuthorityKeyIdentifier(GeneralNames name, BigInteger serialNumber)
: this((byte[])null, name, serialNumber)
{
}
public AuthorityKeyIdentifier(byte[] keyIdentifier)
: this(keyIdentifier, null, null)
{
}
public AuthorityKeyIdentifier(byte[] keyIdentifier, GeneralNames name, BigInteger serialNumber)
{
m_keyIdentifier = DerOctetString.FromContentsOptional(keyIdentifier);
m_authorityCertIssuer = name;
m_authorityCertSerialNumber = ((serialNumber == null) ? null : new DerInteger(serialNumber));
}
public AuthorityKeyIdentifier(Asn1OctetString keyIdentifier)
: this(keyIdentifier, null, null)
{
}
public AuthorityKeyIdentifier(Asn1OctetString keyIdentifier, GeneralNames authorityCertIssuer, DerInteger authorityCertSerialNumber)
{
m_keyIdentifier = keyIdentifier;
m_authorityCertIssuer = authorityCertIssuer;
m_authorityCertSerialNumber = authorityCertSerialNumber;
}
public byte[] GetKeyIdentifier()
{
return m_keyIdentifier?.GetOctets();
}
public override Asn1Object ToAsn1Object()
{
Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector(3);
asn1EncodableVector.AddOptionalTagged(false, 0, m_keyIdentifier);
asn1EncodableVector.AddOptionalTagged(false, 1, m_authorityCertIssuer);
asn1EncodableVector.AddOptionalTagged(false, 2, m_authorityCertSerialNumber);
return new DerSequence(asn1EncodableVector);
}
public override string ToString()
{
string str = (m_keyIdentifier == null) ? "null" : Hex.ToHexString(m_keyIdentifier.GetOctets());
return "AuthorityKeyIdentifier: KeyID(" + str + ")";
}
}
}