3 files changed, 7 insertions, 5 deletions
diff --git a/main/src/main/java/de/blinkt/openvpn/api/AppRestrictions.java b/main/src/main/java/de/blinkt/openvpn/api/AppRestrictions.java
index 06da238e..caa2de32 100644
--- a/main/src/main/java/de/blinkt/openvpn/api/AppRestrictions.java
+++ b/main/src/main/java/de/blinkt/openvpn/api/AppRestrictions.java
@@ -22,6 +22,7 @@ import de.blinkt.openvpn.core.VpnStatus;
 import java.io.IOException;
 import java.io.StringReader;
 import java.math.BigInteger;
+import java.nio.charset.StandardCharsets;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 import java.util.*;
@@ -66,7 +67,7 @@ public class AppRestrictions {
         MessageDigest digest;
         try {
             digest = MessageDigest.getInstance("SHA1");
-            byte[] utf8_bytes = config.getBytes();
+            byte[] utf8_bytes = config.getBytes(StandardCharsets.UTF_8);
             digest.update(utf8_bytes, 0, utf8_bytes.length);
             return new BigInteger(1, digest.digest()).toString(16);
         } catch (NoSuchAlgorithmException e) {
diff --git a/main/src/main/java/de/blinkt/openvpn/core/OpenVPNThread.java b/main/src/main/java/de/blinkt/openvpn/core/OpenVPNThread.java
index 51fc58eb..37eb34dd 100644
--- a/main/src/main/java/de/blinkt/openvpn/core/OpenVPNThread.java
+++ b/main/src/main/java/de/blinkt/openvpn/core/OpenVPNThread.java
@@ -15,6 +15,7 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.OutputStream;
+import java.nio.charset.StandardCharsets;
 import java.text.SimpleDateFormat;
 import java.util.Collections;
 import java.util.Date;
@@ -135,7 +136,7 @@ public class OpenVPNThread implements Runnable {
 
             InputStream in = mProcess.getInputStream();
             OutputStream out = mProcess.getOutputStream();
-            BufferedReader br = new BufferedReader(new InputStreamReader(in));
+            BufferedReader br = new BufferedReader(new InputStreamReader(in, StandardCharsets.UTF_8));
 
             mOutputStream = out;
             mStreamFuture.run();
diff --git a/main/src/ui/java/de/blinkt/openvpn/fragments/Utils.kt b/main/src/ui/java/de/blinkt/openvpn/fragments/Utils.kt
index 8db487e7..55056424 100644
--- a/main/src/ui/java/de/blinkt/openvpn/fragments/Utils.kt
+++ b/main/src/ui/java/de/blinkt/openvpn/fragments/Utils.kt
@@ -306,12 +306,12 @@ object Utils {
         if ("insecure".equals(vp.mTlSCertProfile))
             warnings.add("low security (TLS security profile 'insecure' selected)");
 
-        var cipher= vp.mCipher?.toUpperCase(Locale.ROOT)
-        if (cipher.isNullOrEmpty())
+        var cipher= vp.mCipher.uppercase(Locale.ROOT)
+        if (cipher.isEmpty())
             cipher = "BF-CBC";
 
         for (weakCipher in weakCiphers) {
-            if ((vp.mDataCiphers != null && vp.mDataCiphers.toUpperCase(Locale.ROOT)
+            if ((vp.mDataCiphers != null && vp.mDataCiphers.uppercase(Locale.ROOT)
                     .contains(weakCipher))
                 || (vp.mCompatMode in 1..20399 && (cipher == weakCipher))
             )