Initial Commit

iTechSharp/srcbc/asn1/esf/SignaturePolicyId.cs

@@ -0,0 +1,145 @@
+using System;
+using System.Collections;
+
+using Org.BouncyCastle.Utilities.Collections;
+
+namespace Org.BouncyCastle.Asn1.Esf
+{
+	/// <remarks>
+	/// <code>
+	/// SignaturePolicyId ::= SEQUENCE {
+	/// 	sigPolicyIdentifier		SigPolicyId,
+	/// 	sigPolicyHash			SigPolicyHash,
+	/// 	sigPolicyQualifiers		SEQUENCE SIZE (1..MAX) OF SigPolicyQualifierInfo OPTIONAL
+	/// }
+	/// 
+	/// SigPolicyId ::= OBJECT IDENTIFIER
+	/// 
+	/// SigPolicyHash ::= OtherHashAlgAndValue
+	/// </code>
+	/// </remarks>
+	public class SignaturePolicyId
+		: Asn1Encodable
+	{
+		private readonly DerObjectIdentifier	sigPolicyIdentifier;
+		private readonly OtherHashAlgAndValue	sigPolicyHash;
+		private readonly Asn1Sequence			sigPolicyQualifiers;
+
+		public static SignaturePolicyId GetInstance(
+			object obj)
+		{
+			if (obj == null || obj is SignaturePolicyId)
+				return (SignaturePolicyId) obj;
+
+			if (obj is Asn1Sequence)
+				return new SignaturePolicyId((Asn1Sequence) obj);
+
+			throw new ArgumentException(
+				"Unknown object in 'SignaturePolicyId' factory: "
+					+ obj.GetType().Name,
+				"obj");
+		}
+
+		private SignaturePolicyId(
+			Asn1Sequence seq)
+		{
+			if (seq == null)
+				throw new ArgumentNullException("seq");
+			if (seq.Count < 2 || seq.Count > 3)
+				throw new ArgumentException("Bad sequence size: " + seq.Count, "seq");
+
+			this.sigPolicyIdentifier = (DerObjectIdentifier) seq[0].ToAsn1Object();
+			this.sigPolicyHash = OtherHashAlgAndValue.GetInstance(seq[1].ToAsn1Object());
+
+			if (seq.Count > 2)
+			{
+				this.sigPolicyQualifiers = (Asn1Sequence) seq[2].ToAsn1Object();
+			}
+		}
+
+		public SignaturePolicyId(
+			DerObjectIdentifier		sigPolicyIdentifier,
+			OtherHashAlgAndValue	sigPolicyHash)
+			: this(sigPolicyIdentifier, sigPolicyHash, null)
+		{
+		}
+
+		public SignaturePolicyId(
+			DerObjectIdentifier				sigPolicyIdentifier,
+			OtherHashAlgAndValue			sigPolicyHash,
+			params SigPolicyQualifierInfo[]	sigPolicyQualifiers)
+		{
+			if (sigPolicyIdentifier == null)
+				throw new ArgumentNullException("sigPolicyIdentifier");
+			if (sigPolicyHash == null)
+				throw new ArgumentNullException("sigPolicyHash");
+
+			this.sigPolicyIdentifier = sigPolicyIdentifier;
+			this.sigPolicyHash = sigPolicyHash;
+
+			if (sigPolicyQualifiers != null)
+			{
+				this.sigPolicyQualifiers = new DerSequence(sigPolicyQualifiers);
+			}
+		}
+
+		public SignaturePolicyId(
+			DerObjectIdentifier		sigPolicyIdentifier,
+			OtherHashAlgAndValue	sigPolicyHash,
+			IEnumerable				sigPolicyQualifiers)
+		{
+			if (sigPolicyIdentifier == null)
+				throw new ArgumentNullException("sigPolicyIdentifier");
+			if (sigPolicyHash == null)
+				throw new ArgumentNullException("sigPolicyHash");
+
+			this.sigPolicyIdentifier = sigPolicyIdentifier;
+			this.sigPolicyHash = sigPolicyHash;
+
+			if (sigPolicyQualifiers != null)
+			{
+				if (!CollectionUtilities.CheckElementsAreOfType(sigPolicyQualifiers, typeof(SigPolicyQualifierInfo)))
+					throw new ArgumentException("Must contain only 'SigPolicyQualifierInfo' objects", "sigPolicyQualifiers");
+
+				this.sigPolicyQualifiers = new DerSequence(
+					Asn1EncodableVector.FromEnumerable(sigPolicyQualifiers));
+			}
+		}
+
+		public DerObjectIdentifier SigPolicyIdentifier
+		{
+			get { return sigPolicyIdentifier; }
+		}
+
+		public OtherHashAlgAndValue SigPolicyHash
+		{
+			get { return sigPolicyHash; }
+		}
+
+		public SigPolicyQualifierInfo[] GetSigPolicyQualifiers()
+		{
+			if (sigPolicyQualifiers == null)
+				return null;
+
+			SigPolicyQualifierInfo[] infos = new SigPolicyQualifierInfo[sigPolicyQualifiers.Count];
+			for (int i = 0; i < sigPolicyQualifiers.Count; ++i)
+			{
+				infos[i] = SigPolicyQualifierInfo.GetInstance(sigPolicyQualifiers[i]);
+			}
+			return infos;
+		}
+
+		public override Asn1Object ToAsn1Object()
+		{
+			Asn1EncodableVector v = new Asn1EncodableVector(
+				sigPolicyIdentifier, sigPolicyHash.ToAsn1Object());
+
+			if (sigPolicyQualifiers != null)
+			{
+				v.Add(sigPolicyQualifiers.ToAsn1Object());
+			}
+
+			return new DerSequence(v);
+		}
+	}
+}