1 files changed, 17 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/CachedPublicKeyRing.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/CachedPublicKeyRing.java
index 604a5a027..58c3a154e 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/CachedPublicKeyRing.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/CachedPublicKeyRing.java
@@ -167,6 +167,23 @@ public class CachedPublicKeyRing extends KeyRing {
         }
     }
 
+    /** Returns the key id which should be used for auth.
+     *
+     * This method returns keys which are actually available (ie. secret available, and not stripped,
+     * revoked, or expired), hence only works on keyrings where a secret key is available!
+     *
+     */
+    public long getSecretAuthId() throws PgpKeyNotFoundException {
+        try {
+            Object data = mProviderHelper.getGenericData(mUri,
+                    KeyRings.HAS_AUTHENTICATE,
+                    ProviderHelper.FIELD_TYPE_INTEGER);
+            return (Long) data;
+        } catch(ProviderHelper.NotFoundException e) {
+            throw new PgpKeyNotFoundException(e);
+        }
+    }
+
     @Override
     public int getVerified() throws PgpKeyNotFoundException {
         try {