More TLS porting from Java API

1 files changed, 56 insertions, 0 deletions

diff --git a/crypto/src/crypto/tls/UseSrtpData.cs b/crypto/src/crypto/tls/UseSrtpData.cs
new file mode 100644
index 000000000..fe8f8accb
--- /dev/null
+++ b/crypto/src/crypto/tls/UseSrtpData.cs
@@ -0,0 +1,56 @@
+using System;
+using System.Collections;
+using System.IO;
+
+namespace Org.BouncyCastle.Crypto.Tls
+{
+    /**
+     * RFC 5764 4.1.1
+     */
+    public class UseSrtpData
+    {
+        protected readonly int[] mProtectionProfiles;
+        protected readonly byte[] mMki;
+
+        /**
+         * @param protectionProfiles see {@link SrtpProtectionProfile} for valid constants.
+         * @param mki                valid lengths from 0 to 255.
+         */
+        public UseSrtpData(int[] protectionProfiles, byte[] mki)
+        {
+            if (protectionProfiles == null || protectionProfiles.Length < 1
+                || 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.mProtectionProfiles = protectionProfiles;
+            this.mMki = mki;
+        }
+
+        /**
+         * @return see {@link SrtpProtectionProfile} for valid constants.
+         */
+        public virtual int[] ProtectionProfiles
+        {
+            get { return mProtectionProfiles; }
+        }
+
+        /**
+         * @return valid lengths from 0 to 255.
+         */
+        public virtual byte[] Mki
+        {
+            get { return mMki; }
+        }
+    }
+}