1 files changed, 9 insertions, 0 deletions
diff --git a/keystore/java/android/security/CertTool.java b/keystore/java/android/security/CertTool.java
index 1dc575b..5319330 100644
--- a/keystore/java/android/security/CertTool.java
+++ b/keystore/java/android/security/CertTool.java
@@ -63,6 +63,15 @@ public class CertTool {
     private native String getPrivateKeyPEM(int handle);
     private native void freeX509Certificate(int handle);
 
+    private static CertTool singleton = null;
+
+    public static final CertTool getInstance() {
+        if (singleton == null) {
+            singleton = new CertTool();
+        }
+        return singleton;
+    }
+
     public String getUserPrivateKey(String key) {
         return USER_KEY + KEYNAME_DELIMITER + key;
     }