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 sha1Hash; private readonly OtherHashAlgAndValue otherHash; public AlgorithmIdentifier HashAlgorithm { get { if (otherHash != null) return otherHash.HashAlgorithm; return new AlgorithmIdentifier(OiwObjectIdentifiers.IdSha1); } } public static OtherHash GetInstance(object obj) { if (obj == null || obj is OtherHash) return (OtherHash)obj; if (obj is Asn1OctetString) return new OtherHash((Asn1OctetString)obj); return new OtherHash(OtherHashAlgAndValue.GetInstance(obj)); } public OtherHash(byte[] sha1Hash) { if (sha1Hash == null) throw new ArgumentNullException("sha1Hash"); this.sha1Hash = new DerOctetString(sha1Hash); } public OtherHash(Asn1OctetString sha1Hash) { if (sha1Hash == null) throw new ArgumentNullException("sha1Hash"); this.sha1Hash = sha1Hash; } public OtherHash(OtherHashAlgAndValue otherHash) { if (otherHash == null) throw new ArgumentNullException("otherHash"); this.otherHash = otherHash; } public byte[] GetHashValue() { if (otherHash != null) return otherHash.GetHashValue(); return sha1Hash.GetOctets(); } public override Asn1Object ToAsn1Object() { if (otherHash != null) return otherHash.ToAsn1Object(); return sha1Hash; } } }