DigestInfo
using Org.BouncyCastle.Utilities;
using System;
namespace Org.BouncyCastle.Asn1.X509
{
public class DigestInfo : Asn1Encodable
{
private readonly AlgorithmIdentifier m_digestAlgorithm;
private readonly Asn1OctetString m_digest;
[Obsolete("Use 'DigestAlgorithm' property instead")]
public AlgorithmIdentifier AlgorithmID {
get {
return m_digestAlgorithm;
}
}
public AlgorithmIdentifier DigestAlgorithm => m_digestAlgorithm;
public Asn1OctetString Digest => m_digest;
public static DigestInfo GetInstance(object obj)
{
if (obj == null)
return null;
DigestInfo digestInfo = obj as DigestInfo;
if (digestInfo != null)
return digestInfo;
return new DigestInfo(Asn1Sequence.GetInstance(obj));
}
public static DigestInfo GetInstance(Asn1TaggedObject obj, bool explicitly)
{
return new DigestInfo(Asn1Sequence.GetInstance(obj, explicitly));
}
public static DigestInfo GetTagged(Asn1TaggedObject taggedObject, bool declaredExplicit)
{
return new DigestInfo(Asn1Sequence.GetTagged(taggedObject, declaredExplicit));
}
private DigestInfo(Asn1Sequence seq)
{
int count = seq.Count;
if (count != 2)
throw new ArgumentException("Bad sequence size: " + count.ToString(), "seq");
m_digestAlgorithm = AlgorithmIdentifier.GetInstance(seq[0]);
m_digest = Asn1OctetString.GetInstance(seq[1]);
}
public DigestInfo(AlgorithmIdentifier algID, byte[] digest)
{
if (algID == null)
throw new ArgumentNullException("algID");
m_digestAlgorithm = algID;
m_digest = DerOctetString.FromContents(digest);
}
public DigestInfo(AlgorithmIdentifier digestAlgorithm, Asn1OctetString digest)
{
if (digestAlgorithm == null)
throw new ArgumentNullException("digestAlgorithm");
m_digestAlgorithm = digestAlgorithm;
if (digest == null)
throw new ArgumentNullException("digest");
m_digest = digest;
}
[Obsolete("Use 'Digest' property instead")]
public byte[] GetDigest()
{
return Arrays.Clone(m_digest.GetOctets());
}
public override Asn1Object ToAsn1Object()
{
return new DerSequence(m_digestAlgorithm, m_digest);
}
}
}