Secret and random key

Question

Which algorithms use a secret key and a random key?
Which of these are implemented (or at last con be implemented) in J2SE and J2ME?

Answer 1

Which algorithms use a secret key and a random key?Secret key - symetric algorithms such as DES, AES and Twofish.
Random key - asymetric algorithms such as RSA are normally used in conjunction with a symetric encryption algorithm using a random session Secret key.
Which of these are implemented (or at last con be
implemented) in J2SE and J2ME?On J2SE run
import java.security.*;
import java.util.Enumeration;
public class ListAlgorithms
    public static void main(String[] args)
        // Add any provider you wish to list
        Security.addProvider(new com.sun.crypto.provider.SunJCE());
        //Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
        //Security.addProvider(new cryptix.jce.provider.CryptixCrypto());
        System.out.println("Providers -");
        Provider[] providers = java.security.Security.getProviders();
        for (int index = 0; index < providers.length; index++)
            System.out.println("    " + providers[index].getName());
            Enumeration en = providers[index].propertyNames();
            while (en.hasMoreElements())
                String alg = (String)en.nextElement();
                 if (alg.matches("(?i)Cipher\\..*"))
                    System.out.println("        Alg = " + alg);
}I know nothing about J2ME.