From b3ae550f4196dfc7b3b45739a04c5b1ae1859623 Mon Sep 17 00:00:00 2001
From: Jakob Heher <jakob.heher@iaik.tugraz.at>
Date: Fri, 8 Jul 2022 13:42:20 +0200
Subject: cache keystore password in memory cf. #68 #69

todo: sanitize config loading behavior
---
 .../asit/pdfover/gui/keystore/KeystoreUtils.java   | 28 ++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 pdf-over-gui/src/main/java/at/asit/pdfover/gui/keystore/KeystoreUtils.java

(limited to 'pdf-over-gui/src/main/java/at/asit/pdfover/gui/keystore/KeystoreUtils.java')

diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/keystore/KeystoreUtils.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/keystore/KeystoreUtils.java
new file mode 100644
index 00000000..8b7bb59c
--- /dev/null
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/keystore/KeystoreUtils.java
@@ -0,0 +1,28 @@
+package at.asit.pdfover.gui.keystore;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.security.KeyStore;
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+import java.security.UnrecoverableKeyException;
+import java.security.cert.CertificateException;
+
+public class KeystoreUtils {
+    public static KeyStore tryLoadKeystore(File location, String storeType, String storePass) throws KeyStoreException, NoSuchAlgorithmException, CertificateException, IOException, UnrecoverableKeyException {
+		KeyStore ks = KeyStore.getInstance(storeType);
+		FileInputStream fis = new FileInputStream(location);
+        try
+        {
+		    ks.load(fis, storePass.toCharArray());
+        } catch (IOException e) {
+            UnrecoverableKeyException keyCause = (UnrecoverableKeyException)e.getCause();
+            if (keyCause != null)
+                throw keyCause;
+            else
+                throw e;
+        }
+        return ks;
+	}
+}
-- 
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