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Packages/com.tivadar.best.http/Runtime/3rdParty/BouncyCastle/asn1/cms/KeyAgreeRecipientInfo.cs

@@ -0,0 +1,138 @@
+#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
+#pragma warning disable
+using System;
+
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Asn1.X509;
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Utilities;
+
+namespace Best.HTTP.SecureProtocol.Org.BouncyCastle.Asn1.Cms
+{
+    public class KeyAgreeRecipientInfo
+        : Asn1Encodable
+    {
+        private DerInteger                  version;
+        private OriginatorIdentifierOrKey   originator;
+        private Asn1OctetString             ukm;
+        private AlgorithmIdentifier         keyEncryptionAlgorithm;
+        private Asn1Sequence                recipientEncryptedKeys;
+
+		public KeyAgreeRecipientInfo(
+            OriginatorIdentifierOrKey   originator,
+            Asn1OctetString             ukm,
+            AlgorithmIdentifier         keyEncryptionAlgorithm,
+            Asn1Sequence                recipientEncryptedKeys)
+        {
+            this.version = new DerInteger(3);
+            this.originator = originator;
+            this.ukm = ukm;
+            this.keyEncryptionAlgorithm = keyEncryptionAlgorithm;
+            this.recipientEncryptedKeys = recipientEncryptedKeys;
+        }
+
+		public KeyAgreeRecipientInfo(
+            Asn1Sequence seq)
+        {
+            int index = 0;
+
+            version = (DerInteger) seq[index++];
+            originator = OriginatorIdentifierOrKey.GetInstance(
+				(Asn1TaggedObject) seq[index++], true);
+
+			if (seq[index] is Asn1TaggedObject)
+            {
+                ukm = Asn1OctetString.GetInstance(
+					(Asn1TaggedObject) seq[index++], true);
+            }
+
+			keyEncryptionAlgorithm = AlgorithmIdentifier.GetInstance(
+				seq[index++]);
+
+			recipientEncryptedKeys = (Asn1Sequence) seq[index++];
+        }
+
+		/**
+         * return a KeyAgreeRecipientInfo object from a tagged object.
+         *
+         * @param obj the tagged object holding the object we want.
+         * @param explicitly 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 KeyAgreeRecipientInfo GetInstance(
+            Asn1TaggedObject	obj,
+            bool				explicitly)
+        {
+            return GetInstance(Asn1Sequence.GetInstance(obj, explicitly));
+        }
+
+		/**
+         * return a KeyAgreeRecipientInfo object from the given object.
+         *
+         * @param obj the object we want converted.
+         * @exception ArgumentException if the object cannot be converted.
+         */
+        public static KeyAgreeRecipientInfo GetInstance(
+            object obj)
+        {
+            if (obj == null || obj is KeyAgreeRecipientInfo)
+                return (KeyAgreeRecipientInfo)obj;
+
+			if (obj is Asn1Sequence)
+                return new KeyAgreeRecipientInfo((Asn1Sequence)obj);
+
+			throw new ArgumentException(
+                "Illegal object in KeyAgreeRecipientInfo: " + Org.BouncyCastle.Utilities.Platform.GetTypeName(obj));
+
+        }
+
+		public DerInteger Version
+		{
+			get { return version; }
+		}
+
+		public OriginatorIdentifierOrKey Originator
+		{
+			get { return originator; }
+		}
+
+		public Asn1OctetString UserKeyingMaterial
+		{
+			get { return ukm; }
+		}
+
+		public AlgorithmIdentifier KeyEncryptionAlgorithm
+		{
+			get { return keyEncryptionAlgorithm; }
+		}
+
+		public Asn1Sequence RecipientEncryptedKeys
+		{
+			get { return recipientEncryptedKeys; }
+		}
+
+		/**
+         * Produce an object suitable for an Asn1OutputStream.
+         * <pre>
+         * KeyAgreeRecipientInfo ::= Sequence {
+         *     version CMSVersion,  -- always set to 3
+         *     originator [0] EXPLICIT OriginatorIdentifierOrKey,
+         *     ukm [1] EXPLICIT UserKeyingMaterial OPTIONAL,
+         *     keyEncryptionAlgorithm KeyEncryptionAlgorithmIdentifier,
+         *     recipientEncryptedKeys RecipientEncryptedKeys
+         * }
+		 *
+		 * UserKeyingMaterial ::= OCTET STRING
+         * </pre>
+         */
+        public override Asn1Object ToAsn1Object()
+        {
+            Asn1EncodableVector v = new Asn1EncodableVector(version, new DerTaggedObject(true, 0, originator));
+            v.AddOptionalTagged(true, 1, ukm);
+			v.Add(keyEncryptionAlgorithm, recipientEncryptedKeys);
+			return new DerSequence(v);
+        }
+    }
+}
+#pragma warning restore
+#endif