1 files changed, 81 insertions, 0 deletions
diff --git a/crypto/src/openpgp/PgpUserAttributeSubpacketVector.cs b/crypto/src/openpgp/PgpUserAttributeSubpacketVector.cs
new file mode 100644
index 000000000..4cdbeda54
--- /dev/null
+++ b/crypto/src/openpgp/PgpUserAttributeSubpacketVector.cs
@@ -0,0 +1,81 @@
+using Org.BouncyCastle.Bcpg.Attr;
+
+namespace Org.BouncyCastle.Bcpg.OpenPgp
+{
+	/// <remarks>Container for a list of user attribute subpackets.</remarks>
+    public class PgpUserAttributeSubpacketVector
+    {
+        private readonly UserAttributeSubpacket[] packets;
+
+		internal PgpUserAttributeSubpacketVector(
+            UserAttributeSubpacket[] packets)
+        {
+            this.packets = packets;
+        }
+
+		public UserAttributeSubpacket GetSubpacket(
+            UserAttributeSubpacketTag type)
+        {
+            for (int i = 0; i != packets.Length; i++)
+            {
+                if (packets[i].SubpacketType == type)
+                {
+                    return packets[i];
+                }
+            }
+
+			return null;
+        }
+
+		public ImageAttrib GetImageAttribute()
+        {
+            UserAttributeSubpacket p = GetSubpacket(UserAttributeSubpacketTag.ImageAttribute);
+
+            return p == null ? null : (ImageAttrib) p;
+        }
+
+		internal UserAttributeSubpacket[] ToSubpacketArray()
+        {
+            return packets;
+        }
+
+		public override bool Equals(
+            object obj)
+        {
+            if (obj == this)
+                return true;
+
+			PgpUserAttributeSubpacketVector other = obj as PgpUserAttributeSubpacketVector;
+
+			if (other == null)
+				return false;
+
+			if (other.packets.Length != packets.Length)
+            {
+                return false;
+            }
+
+			for (int i = 0; i != packets.Length; i++)
+            {
+                if (!other.packets[i].Equals(packets[i]))
+                {
+                    return false;
+                }
+            }
+
+			return true;
+        }
+
+		public override int GetHashCode()
+        {
+            int code = 0;
+
+			foreach (object o in packets)
+			{
+				code ^= o.GetHashCode();
+			}
+
+			return code;
+        }
+    }
+}