refactor(#664): make key size constant

cli/src/main/java/dev/fitko/fitconnect/cli/CommandExecutor.java

@@ -39,6 +39,8 @@ import java.util.function.Function;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
+import static dev.fitko.fitconnect.cli.keygen.JWKGenerator.DEFAULT_KEY_SIZE;
+
 class CommandExecutor {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(CommandExecutor.class);
@@ -126,10 +128,8 @@ class CommandExecutor {
 
         LOGGER.info("Generating JWKs ...");
 
-        final int keySize = createTestKeysCommand.keySize == 0 ? 4096 : createTestKeysCommand.keySize;
-
-        final JWKPair encryptionKeyPair = jwkGenerator.generateEncryptionKeyPair(keySize);
-        final JWKPair signatureKeyPair = jwkGenerator.generateSignatureKeyPair(keySize);
+        final JWKPair encryptionKeyPair = jwkGenerator.generateEncryptionKeyPair(DEFAULT_KEY_SIZE);
+        final JWKPair signatureKeyPair = jwkGenerator.generateSignatureKeyPair(DEFAULT_KEY_SIZE);
 
         final KeyWriterSettings keyWriterSettings = KeyWriterSettings.builder()
                 .outputDir(createTestKeysCommand.outputDir)

cli/src/main/java/dev/fitko/fitconnect/cli/commands/CreateTestKeysCommand.java

@@ -12,9 +12,6 @@ public class CreateTestKeysCommand {
 
     public static final String CREATE_TEST_KEYS_COMMAND_NAME = "keygen";
 
-    @Parameter(names = {"--keySize"}, description = "Unique destination identifier in UUID format", arity = 1)
-    public int keySize = 4096;
-
     @Parameter(names = {"--outDir"}, description = "Output directory folder where the generated test keys are written to", arity = 1)
     public String outputDir;
 

cli/src/main/java/dev/fitko/fitconnect/cli/keygen/JWKGenerator.java

@@ -38,6 +38,8 @@ import java.util.UUID;
  */
 public class JWKGenerator {
 
+    public static final int DEFAULT_KEY_SIZE = 4096;
+
     /**
      * Generate a set of public encryption key and private decryption key.
      *