JDK Security Algorithms
The JDK comes with a long list of cryptographic algorithms for different
Service types. This snippet lists all service
types together with the algorithms implemented in the current JDK.
Since Java 1.1
import static java.util.stream.Collectors.groupingBy;
import static java.util.stream.Collectors.mapping;
import static java.util.stream.Collectors.toCollection;
import java.security.Provider.Service;
import java.security.Security;
import java.util.Arrays;
import java.util.TreeMap;
import java.util.TreeSet;
import java.util.stream.Stream;
public class SecurityAlgoritms {
static Stream<Service> getAllSecurityServices() {
return Arrays.stream(Security.getProviders()).flatMap(p -> p.getServices().stream());
}
public static void main(String[] args) {
var grouped = getAllSecurityServices().collect(
// Group algorithms by type
groupingBy(Service::getType,
// Sort types and algorithms using tree collections
TreeMap::new, mapping(Service::getAlgorithm, toCollection(TreeSet::new))));
grouped.forEach((type, algorithms) -> {
System.out.println(type);
algorithms.forEach(a -> System.out.println("* " + a));
});
}
}
This snippet at GitHub