1 files changed, 12 insertions, 0 deletions
diff --git a/src/main/java/eu/siacs/conversations/crypto/sasl/ChannelBinding.java b/src/main/java/eu/siacs/conversations/crypto/sasl/ChannelBinding.java
index 847c50e9d..81bd12705 100644
--- a/src/main/java/eu/siacs/conversations/crypto/sasl/ChannelBinding.java
+++ b/src/main/java/eu/siacs/conversations/crypto/sasl/ChannelBinding.java
@@ -4,6 +4,8 @@ import android.util.Log;
 
 import com.google.common.base.CaseFormat;
 
+import java.util.Collection;
+
 import eu.siacs.conversations.Config;
 
 public enum ChannelBinding {
@@ -24,4 +26,14 @@ public enum ChannelBinding {
             return null;
         }
     }
+
+    public static ChannelBinding best(final Collection<ChannelBinding> bindings) {
+        if (bindings.contains(TLS_EXPORTER)) {
+            return TLS_EXPORTER;
+        } else if (bindings.contains(TLS_UNIQUE)) {
+            return TLS_UNIQUE;
+        } else {
+            return null;
+        }
+    }
 }