added use of Strings.toLowerCase()

Author: dghgit

prov/src/main/java/org/bouncycastle/jce/provider/X509LDAPCertStoreSpi.java

@@ -34,6 +34,7 @@
 import org.bouncycastle.asn1.ASN1InputStream;
 import org.bouncycastle.asn1.x509.CertificatePair;
 import org.bouncycastle.jce.X509LDAPCertStoreParameters;
+import org.bouncycastle.util.Strings;
 
 /**
  * This is a general purpose implementation to get X.509 certificates and CRLs
@@ -126,8 +127,7 @@ private DirContext connectLDAP()
     private String parseDN(String subject, String subjectAttributeName)
     {
         String temp = subject;
-        int begin = temp.toLowerCase().indexOf(
-            subjectAttributeName.toLowerCase());
+        int begin = Strings.toLowerCase(temp).indexOf(Strings.toLowerCase(subjectAttributeName));
         temp = temp.substring(begin + subjectAttributeName.length());
         int end = temp.indexOf(',');
         if (end == -1)

prov/src/main/java/org/bouncycastle/x509/util/LDAPStoreHelper.java

@@ -36,6 +36,7 @@
 import org.bouncycastle.jce.provider.X509CertPairParser;
 import org.bouncycastle.jce.provider.X509CertParser;
 import org.bouncycastle.util.StoreException;
+import org.bouncycastle.util.Strings;
 import org.bouncycastle.x509.X509AttributeCertStoreSelector;
 import org.bouncycastle.x509.X509AttributeCertificate;
 import org.bouncycastle.x509.X509CRLStoreSelector;
@@ -113,8 +114,8 @@ private DirContext connectLDAP() throws NamingException
     private String parseDN(String subject, String dNAttributeName)
     {
         String temp = subject;
-        int begin = temp.toLowerCase().indexOf(
-            dNAttributeName.toLowerCase() + "=");
+        int begin = Strings.toLowerCase(temp).indexOf(
+            Strings.toLowerCase(dNAttributeName) + "=");
         if (begin == -1)
         {
             return "";