diff --git a/modules/gplazma2-alise/src/main/java/org/dcache/gplazma/alise/Identity.java b/modules/gplazma2-alise/src/main/java/org/dcache/gplazma/alise/Identity.java
index 8e74064974c..54e82509b7f 100644
--- a/modules/gplazma2-alise/src/main/java/org/dcache/gplazma/alise/Identity.java
+++ b/modules/gplazma2-alise/src/main/java/org/dcache/gplazma/alise/Identity.java
@@ -18,6 +18,7 @@
  */
 package org.dcache.gplazma.alise;
 
+import com.google.common.base.Objects;
 import java.net.URI;
 import static java.util.Objects.requireNonNull;
 
@@ -40,4 +41,23 @@ public String sub() {
     public URI issuer() {
         return issuer;
     }
+
+    @Override
+    public boolean equals(Object other) {
+        if (other == this) {
+            return true;
+        }
+
+        if (!(other instanceof Identity)) {
+            return false;
+        }
+
+        Identity otherIdentity = (Identity)other;
+        return otherIdentity.sub.equals(sub) && otherIdentity.issuer.equals(issuer);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(sub, issuer);
+    }
 }