HDDS-588. SelfSignedCertificate#generateCertificate should sign the certificate the configured security provider. Contributed by Xiaoyu Yao.

hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/security/x509/certificates/SelfSignedCertificate.java

@@ -103,8 +103,8 @@ public final class SelfSignedCertificate {
 
 
     ContentSigner contentSigner =
-        new JcaContentSignerBuilder(
-            config.getSignatureAlgo()).build(key.getPrivate());
+        new JcaContentSignerBuilder(config.getSignatureAlgo())
+            .setProvider(config.getProvider()).build(key.getPrivate());
 
     // Please note: Since this is a root certificate we use "ONE" as the
     // serial number. Also note that skip enforcing locale or UTC. We are