import java.security.*; import java.util.*; public class Demo { public static void main(String[] argv) { try { SecureRandom sRandom = SecureRandom.getInstance("SHA1PRNG"); Provider p = sRandom.getProvider(); Set<Object> set = p.keySet(); Iterator i = set.iterator(); int x = 30; while (x > 0) { Object val = p.get(i.next()); System.out.println(val); x--; } } catch (NoSuchAlgorithmException e) { System.out.println("Error!!! NoSuchAlgorithmException"); } } }