using Org.BouncyCastle.Asn1.X509; using Org.BouncyCastle.Utilities; using System; namespace Org.BouncyCastle.Asn1.IsisMtt.Ocsp { public class CertHash : Asn1Encodable { private readonly AlgorithmIdentifier hashAlgorithm; private readonly byte[] certificateHash; public AlgorithmIdentifier HashAlgorithm => hashAlgorithm; public byte[] CertificateHash => (byte[])certificateHash.Clone(); public static CertHash GetInstance(object obj) { if (obj == null || obj is CertHash) return (CertHash)obj; if (obj is Asn1Sequence) return new CertHash((Asn1Sequence)obj); throw new ArgumentException("unknown object in factory: " + Platform.GetTypeName(obj), "obj"); } private CertHash(Asn1Sequence seq) { if (seq.Count != 2) throw new ArgumentException("Bad sequence size: " + seq.Count.ToString()); hashAlgorithm = AlgorithmIdentifier.GetInstance(seq[0]); certificateHash = Asn1OctetString.GetInstance(seq[1]).GetOctets(); } public CertHash(AlgorithmIdentifier hashAlgorithm, byte[] certificateHash) { if (hashAlgorithm == null) throw new ArgumentNullException("hashAlgorithm"); if (certificateHash == null) throw new ArgumentNullException("certificateHash"); this.hashAlgorithm = hashAlgorithm; this.certificateHash = (byte[])certificateHash.Clone(); } public override Asn1Object ToAsn1Object() { return new DerSequence(hashAlgorithm, new DerOctetString(certificateHash)); } } }