using Org.BouncyCastle.Asn1.X509; using Org.BouncyCastle.Utilities; using System; namespace Org.BouncyCastle.Asn1.Esf { public class SignerAttribute : Asn1Encodable { private Asn1Sequence claimedAttributes; private AttributeCertificate certifiedAttributes; public virtual Asn1Sequence ClaimedAttributes => claimedAttributes; public virtual AttributeCertificate CertifiedAttributes => certifiedAttributes; public static SignerAttribute GetInstance(object obj) { if (obj == null || obj is SignerAttribute) return (SignerAttribute)obj; if (obj is Asn1Sequence) return new SignerAttribute(obj); throw new ArgumentException("Unknown object in 'SignerAttribute' factory: " + Platform.GetTypeName(obj), "obj"); } private SignerAttribute(object obj) { Asn1TaggedObject asn1TaggedObject = (Asn1TaggedObject)((Asn1Sequence)obj)[0]; if (asn1TaggedObject.TagNo == 0) claimedAttributes = Asn1Sequence.GetInstance(asn1TaggedObject, true); else { if (asn1TaggedObject.TagNo != 1) throw new ArgumentException("illegal tag.", "obj"); certifiedAttributes = AttributeCertificate.GetInstance(asn1TaggedObject); } } public SignerAttribute(Asn1Sequence claimedAttributes) { this.claimedAttributes = claimedAttributes; } public SignerAttribute(AttributeCertificate certifiedAttributes) { this.certifiedAttributes = certifiedAttributes; } public override Asn1Object ToAsn1Object() { if (claimedAttributes == null) return new DerSequence(new DerTaggedObject(1, certifiedAttributes)); return new DerSequence(new DerTaggedObject(0, claimedAttributes)); } } }