Merge pull request #10032 from rezaep/master

BAEL-4488 List available cipher algorithms

core-java-modules/core-java-security-2/src/test/java/com/baeldung/cipher/AvailableCiphersUnitTest.java

@@ -0,0 +1,35 @@
+package com.baeldung.cipher;
+
+import org.junit.jupiter.api.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.security.Provider;
+import java.security.Security;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class AvailableCiphersUnitTest {
+    private final Logger logger = LoggerFactory.getLogger(AvailableCiphersUnitTest.class);
+
+    @Test
+    public void whenGetServices_thenGetAllCipherAlgorithms() {
+        for (Provider provider : Security.getProviders()) {
+            for (Provider.Service service : provider.getServices()) {
+                logger.info(service.getAlgorithm());
+            }
+        }
+    }
+
+    @Test
+    public void whenGetServicesWithFilter_thenGetAllCompatibleCipherAlgorithms() {
+        List<String> algorithms = Arrays.stream(Security.getProviders())
+                .flatMap(provider -> provider.getServices().stream())
+                .filter(service -> "Cipher".equals(service.getType()))
+                .map(Provider.Service::getAlgorithm)
+                .collect(Collectors.toList());
+
+        algorithms.forEach(logger::info);
+    }
+}