diff --git a/src/java/com/threerings/presents/net/Credentials.java b/src/java/com/threerings/presents/net/Credentials.java
index d280aed30..6ec54c88a 100644
--- a/src/java/com/threerings/presents/net/Credentials.java
+++ b/src/java/com/threerings/presents/net/Credentials.java
@@ -1,5 +1,5 @@
 //
-// $Id: Credentials.java,v 1.8 2002/07/23 05:52:48 mdb Exp $
+// $Id: Credentials.java,v 1.9 2002/09/18 21:58:30 mdb Exp $
 
 package com.threerings.presents.net;
 
@@ -66,6 +66,22 @@ public abstract class Credentials implements Streamable
         _username = in.readUTF();
     }
 
+    // documentation inherited
+    public int hashCode ()
+    {
+        return _username.hashCode();
+    }
+
+    // documentation inherited
+    public boolean equals (Object other)
+    {
+        if (other instanceof Credentials) {
+            return _username.equals(((Credentials)other)._username);
+        } else {
+            return false;
+        }
+    }
+
     public String toString ()
     {
         return "[username=" + _username + "]";
diff --git a/src/java/com/threerings/presents/net/UsernamePasswordCreds.java b/src/java/com/threerings/presents/net/UsernamePasswordCreds.java
index e2cbd39de..87aaea996 100644
--- a/src/java/com/threerings/presents/net/UsernamePasswordCreds.java
+++ b/src/java/com/threerings/presents/net/UsernamePasswordCreds.java
@@ -1,5 +1,5 @@
 //
-// $Id: UsernamePasswordCreds.java,v 1.7 2002/07/23 05:52:49 mdb Exp $
+// $Id: UsernamePasswordCreds.java,v 1.8 2002/09/18 21:58:30 mdb Exp $
 
 package com.threerings.presents.net;
 
@@ -52,6 +52,25 @@ public class UsernamePasswordCreds extends Credentials
         _password = in.readUTF();
     }
 
+    // documentation inherited
+    public int hashCode ()
+    {
+        return super.hashCode() ^ _password.hashCode();
+    }
+
+    // documentation inherited
+    public boolean equals (Object other)
+    {
+        if (other instanceof UsernamePasswordCredentials) {
+            UsernamePasswordCredentials upcreds =
+                (UsernamePasswordCredentials)other;
+            return super.equals(other) &&
+                _password.equals(upcreds._password);
+        } else {
+            return false;
+        }
+    }
+
     public String toString ()
     {
         return "[username=" + _username + ", password=" + _password + "]";