using Org.BouncyCastle.Utilities; using System; namespace Org.BouncyCastle.Asn1.X509 { public class ObjectDigestInfo : Asn1Encodable { public const int PublicKey = 0; public const int PublicKeyCert = 1; public const int OtherObjectDigest = 2; internal readonly DerEnumerated digestedObjectType; internal readonly DerObjectIdentifier otherObjectTypeID; internal readonly AlgorithmIdentifier digestAlgorithm; internal readonly DerBitString objectDigest; public DerEnumerated DigestedObjectType => digestedObjectType; public DerObjectIdentifier OtherObjectTypeID => otherObjectTypeID; public AlgorithmIdentifier DigestAlgorithm => digestAlgorithm; public DerBitString ObjectDigest => objectDigest; public static ObjectDigestInfo GetInstance(object obj) { if (obj == null || obj is ObjectDigestInfo) return (ObjectDigestInfo)obj; if (obj is Asn1Sequence) return new ObjectDigestInfo((Asn1Sequence)obj); throw new ArgumentException("unknown object in factory: " + Platform.GetTypeName(obj), "obj"); } public static ObjectDigestInfo GetInstance(Asn1TaggedObject obj, bool isExplicit) { return GetInstance(Asn1Sequence.GetInstance(obj, isExplicit)); } public ObjectDigestInfo(int digestedObjectType, string otherObjectTypeID, AlgorithmIdentifier digestAlgorithm, byte[] objectDigest) { this.digestedObjectType = new DerEnumerated(digestedObjectType); if (digestedObjectType == 2) this.otherObjectTypeID = new DerObjectIdentifier(otherObjectTypeID); this.digestAlgorithm = digestAlgorithm; this.objectDigest = new DerBitString(objectDigest); } private ObjectDigestInfo(Asn1Sequence seq) { if (seq.Count > 4 || seq.Count < 3) throw new ArgumentException("Bad sequence size: " + seq.Count.ToString()); digestedObjectType = DerEnumerated.GetInstance(seq[0]); int num = 0; if (seq.Count == 4) { otherObjectTypeID = DerObjectIdentifier.GetInstance(seq[1]); num++; } digestAlgorithm = AlgorithmIdentifier.GetInstance(seq[1 + num]); objectDigest = DerBitString.GetInstance(seq[2 + num]); } public override Asn1Object ToAsn1Object() { Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector(digestedObjectType); asn1EncodableVector.AddOptional(otherObjectTypeID); asn1EncodableVector.Add(digestAlgorithm, objectDigest); return new DerSequence(asn1EncodableVector); } } }