Make sure Western digits are used where Western digits are required

1 files changed, 2 insertions, 1 deletions

diff --git a/src/main/java/at/bitfire/cert4android/CertUtils.kt b/src/main/java/at/bitfire/cert4android/CertUtils.kt
index 128d6c8..35b7e01 100644
--- a/src/main/java/at/bitfire/cert4android/CertUtils.kt
+++ b/src/main/java/at/bitfire/cert4android/CertUtils.kt
@@ -12,6 +12,7 @@ import java.security.GeneralSecurityException
 import java.security.KeyStore
 import java.security.MessageDigest
 import java.security.cert.X509Certificate
+import java.util.*
 import java.util.logging.Level
 import javax.net.ssl.TrustManagerFactory
 import javax.net.ssl.X509TrustManager
@@ -39,7 +40,7 @@ object CertUtils {
     fun getTag(cert: X509Certificate): String {
         val str = StringBuilder()
         for (b in cert.signature)
-            str.append(String.format("%02x", b))
+            str.append(String.format(Locale.ROOT, "%02x", b))
         return str.toString()
     }