1 files changed, 43 insertions, 0 deletions
diff --git a/crypto/src/tls/UseSrtpData.cs b/crypto/src/tls/UseSrtpData.cs
new file mode 100644
index 000000000..6c7e7da23
--- /dev/null
+++ b/crypto/src/tls/UseSrtpData.cs
@@ -0,0 +1,43 @@
+using System;
+
+namespace Org.BouncyCastle.Tls
+{
+    /// <summary>RFC 5764 4.1.1</summary>
+    public sealed class UseSrtpData
+    {
+        private readonly int[] m_protectionProfiles;
+        private readonly byte[] m_mki;
+
+        /// <param name="protectionProfiles">see <see cref="SrtpProtectionProfile"/> for valid constants.</param>
+        /// <param name="mki">valid lengths from 0 to 255.</param>
+        public UseSrtpData(int[] protectionProfiles, byte[] mki)
+        {
+            if (TlsUtilities.IsNullOrEmpty(protectionProfiles) || protectionProfiles.Length >= (1 << 15))
+                throw new ArgumentException("must have length from 1 to (2^15 - 1)", "protectionProfiles");
+
+            if (mki == null)
+            {
+                mki = TlsUtilities.EmptyBytes;
+            }
+            else if (mki.Length > 255)
+            {
+                throw new ArgumentException("cannot be longer than 255 bytes", "mki");
+            }
+
+            this.m_protectionProfiles = protectionProfiles;
+            this.m_mki = mki;
+        }
+
+        /// <returns>see <see cref="SrtpProtectionProfile"/> for valid constants.</returns>
+        public int[] ProtectionProfiles
+        {
+            get { return m_protectionProfiles; }
+        }
+
+        /// <returns>valid lengths from 0 to 255.</returns>
+        public byte[] Mki
+        {
+            get { return m_mki; }
+        }
+    }
+}