diff --git a/core-java-modules/core-java-security-3/src/test/java/com/baeldung/cryptography/CryptographyStrengthUnitTest.java b/core-java-modules/core-java-security-3/src/test/java/com/baeldung/cryptography/CryptographyStrengthUnitTest.java
new file mode 100644
index 0000000000..5d5c30dc34
--- /dev/null
+++ b/core-java-modules/core-java-security-3/src/test/java/com/baeldung/cryptography/CryptographyStrengthUnitTest.java
@@ -0,0 +1,17 @@
+package com.baeldung.cryptography;
+
+import org.junit.Test;
+
+import java.security.NoSuchAlgorithmException;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class CryptographyStrengthUnitTest {
+    private static final int UNLIMITED_KEY_SIZE = 2147483647;
+
+    @Test
+    public void whenDefaultCheck_thenUnlimitedReturned() throws NoSuchAlgorithmException {
+        int maxKeySize = javax.crypto.Cipher.getMaxAllowedKeyLength("AES");
+        assertThat(maxKeySize).isEqualTo(UNLIMITED_KEY_SIZE);
+    }
+}