1 files changed, 0 insertions, 74 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/tls/TlsSRTPUtils.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/tls/TlsSRTPUtils.java
deleted file mode 100644
index edc48795a..000000000
--- a/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/tls/TlsSRTPUtils.java
+++ /dev/null
@@ -1,74 +0,0 @@
-package org.spongycastle.crypto.tls;
-
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.util.Hashtable;
-
-import org.spongycastle.util.Integers;
-
-/**
- * RFC 5764 DTLS Extension to Establish Keys for SRTP.
- */
-public class TlsSRTPUtils
-{
-    public static final Integer EXT_use_srtp = Integers.valueOf(ExtensionType.use_srtp);
-
-    public static void addUseSRTPExtension(Hashtable extensions, UseSRTPData useSRTPData)
-        throws IOException
-    {
-        extensions.put(EXT_use_srtp, createUseSRTPExtension(useSRTPData));
-    }
-
-    public static UseSRTPData getUseSRTPExtension(Hashtable extensions)
-        throws IOException
-    {
-        byte[] extensionData = TlsUtils.getExtensionData(extensions, EXT_use_srtp);
-        return extensionData == null ? null : readUseSRTPExtension(extensionData);
-    }
-
-    public static byte[] createUseSRTPExtension(UseSRTPData useSRTPData)
-        throws IOException
-    {
-        if (useSRTPData == null)
-        {
-            throw new IllegalArgumentException("'useSRTPData' cannot be null");
-        }
-
-        ByteArrayOutputStream buf = new ByteArrayOutputStream();
-
-        // SRTPProtectionProfiles
-        TlsUtils.writeUint16ArrayWithUint16Length(useSRTPData.getProtectionProfiles(), buf);
-
-        // srtp_mki
-        TlsUtils.writeOpaque8(useSRTPData.getMki(), buf);
-
-        return buf.toByteArray();
-    }
-
-    public static UseSRTPData readUseSRTPExtension(byte[] extensionData)
-        throws IOException
-    {
-        if (extensionData == null)
-        {
-            throw new IllegalArgumentException("'extensionData' cannot be null");
-        }
-
-        ByteArrayInputStream buf = new ByteArrayInputStream(extensionData);
-
-        // SRTPProtectionProfiles
-        int length = TlsUtils.readUint16(buf);
-        if (length < 2 || (length & 1) != 0)
-        {
-            throw new TlsFatalAlert(AlertDescription.decode_error);
-        }
-        int[] protectionProfiles = TlsUtils.readUint16Array(length / 2, buf);
-
-        // srtp_mki
-        byte[] mki = TlsUtils.readOpaque8(buf);
-
-        TlsProtocol.assertEmpty(buf);
-
-        return new UseSRTPData(protectionProfiles, mki);
-    }
-}