using Org.BouncyCastle.Asn1.Oiw; using Org.BouncyCastle.Asn1.X509; using System; namespace Org.BouncyCastle.Asn1.Esf { public class OtherHash : Asn1Encodable, IAsn1Choice { private readonly Asn1OctetString m_sha1Hash; private readonly OtherHashAlgAndValue m_otherHash; public AlgorithmIdentifier HashAlgorithm => m_otherHash?.HashAlgorithm ?? new AlgorithmIdentifier(OiwObjectIdentifiers.IdSha1); public static OtherHash GetInstance(object obj) { if (obj == null) return null; OtherHash otherHash = obj as OtherHash; if (otherHash != null) return otherHash; Asn1OctetString asn1OctetString = obj as Asn1OctetString; if (asn1OctetString != null) return new OtherHash(asn1OctetString); return new OtherHash(OtherHashAlgAndValue.GetInstance(obj)); } public static OtherHash GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit) { return Asn1Utilities.GetInstanceFromChoice(taggedObject, declaredExplicit, GetInstance); } public OtherHash(byte[] sha1Hash) { if (sha1Hash == null) throw new ArgumentNullException("sha1Hash"); m_sha1Hash = new DerOctetString(sha1Hash); } public OtherHash(Asn1OctetString sha1Hash) { if (sha1Hash == null) throw new ArgumentNullException("sha1Hash"); m_sha1Hash = sha1Hash; } public OtherHash(OtherHashAlgAndValue otherHash) { if (otherHash == null) throw new ArgumentNullException("otherHash"); m_otherHash = otherHash; } public byte[] GetHashValue() { return m_otherHash?.GetHashValue() ?? m_sha1Hash.GetOctets(); } public override Asn1Object ToAsn1Object() { return m_otherHash?.ToAsn1Object() ?? m_sha1Hash; } } }