Initial Commit

2023-06-21 12:46:23 -04:00
commit c70248a520
1352 changed files with 336780 additions and 0 deletions
--- a/iTechSharp/srcbc/asn1/cms/RecipientKeyIdentifier.cs
+++ b/iTechSharp/srcbc/asn1/cms/RecipientKeyIdentifier.cs
@@ -0,0 +1,135 @@
+using System;
+
+using Org.BouncyCastle.Asn1;
+
+namespace Org.BouncyCastle.Asn1.Cms
+{
+    public class RecipientKeyIdentifier
+        : Asn1Encodable
+    {
+        private Asn1OctetString      subjectKeyIdentifier;
+        private DerGeneralizedTime   date;
+        private OtherKeyAttribute    other;
+
+		public RecipientKeyIdentifier(
+            Asn1OctetString         subjectKeyIdentifier,
+            DerGeneralizedTime      date,
+            OtherKeyAttribute       other)
+        {
+            this.subjectKeyIdentifier = subjectKeyIdentifier;
+            this.date = date;
+            this.other = other;
+        }
+
+		public RecipientKeyIdentifier(
+            Asn1Sequence seq)
+        {
+            subjectKeyIdentifier = Asn1OctetString.GetInstance(
+				seq[0]);
+
+			switch(seq.Count)
+            {
+				case 1:
+					break;
+				case 2:
+					if (seq[1] is DerGeneralizedTime)
+					{
+						date = (DerGeneralizedTime) seq[1];
+					}
+					else
+					{
+						other = OtherKeyAttribute.GetInstance(seq[2]);
+					}
+					break;
+				case 3:
+					date  = (DerGeneralizedTime) seq[1];
+					other = OtherKeyAttribute.GetInstance(seq[2]);
+					break;
+				default:
+					throw new ArgumentException("Invalid KekIdentifier");
+            }
+        }
+
+		/**
+         * return a RecipientKeyIdentifier object from a tagged object.
+         *
+         * @param _ato the tagged object holding the object we want.
+         * @param _explicit true if the object is meant to be explicitly
+         *              tagged false otherwise.
+         * @exception ArgumentException if the object held by the
+         *          tagged object cannot be converted.
+         */
+        public static RecipientKeyIdentifier GetInstance(
+			Asn1TaggedObject	ato,
+			bool				explicitly)
+		{
+            return GetInstance(Asn1Sequence.GetInstance(ato, explicitly));
+        }
+
+		/**
+         * return a RecipientKeyIdentifier object from the given object.
+         *
+         * @param _obj the object we want converted.
+         * @exception ArgumentException if the object cannot be converted.
+         */
+        public static RecipientKeyIdentifier GetInstance(
+			object obj)
+		{
+            if (obj == null || obj is RecipientKeyIdentifier)
+			{
+                return (RecipientKeyIdentifier) obj;
+            }
+
+			if (obj is Asn1Sequence)
+			{
+				return new RecipientKeyIdentifier((Asn1Sequence) obj);
+            }
+
+			throw new ArgumentException("Invalid RecipientKeyIdentifier: " + obj.GetType().Name);
+        }
+
+		public Asn1OctetString SubjectKeyIdentifier
+		{
+			get { return subjectKeyIdentifier; }
+		}
+
+		public DerGeneralizedTime Date
+		{
+			get { return date; }
+		}
+
+		public OtherKeyAttribute OtherKeyAttribute
+		{
+			get { return other; }
+		}
+
+		/**
+         * Produce an object suitable for an Asn1OutputStream.
+         * <pre>
+         * RecipientKeyIdentifier ::= Sequence {
+         *     subjectKeyIdentifier SubjectKeyIdentifier,
+         *     date GeneralizedTime OPTIONAL,
+         *     other OtherKeyAttribute OPTIONAL
+         * }
+         *
+         * SubjectKeyIdentifier ::= OCTET STRING
+         * </pre>
+         */
+        public override Asn1Object ToAsn1Object()
+        {
+            Asn1EncodableVector v = new Asn1EncodableVector(subjectKeyIdentifier);
+
+			if (date != null)
+            {
+                v.Add(date);
+            }
+
+			if (other != null)
+            {
+                v.Add(other);
+            }
+
+			return new DerSequence(v);
+        }
+    }
+}