Object Oriented Programming Articles - Page 680 of 915

The entries in the Provider have an unmodifiable set view that can be obtained using the method entrySet() in the class java.security.Provider. This method requires no parameters and it returns the unmodifiable set view for the entries in the Provider.A program that demonstrates this is given as follows −Example Live Demoimport 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 set = p.entrySet();          Iterator i = ... Read More

An enumeration of the values in the hash table can be obtained using the method elements() in the class java.security.Provider. This method requires no parameters and it returns the enumeration of the values in the hash table.A program that demonstrates this is given as follows −Example Live Demoimport java.security.*; import java.util.*; public class Demo {    public static void main(String[] argv) {       try {          SecureRandom sRandom = SecureRandom.getInstance("SHA1PRNG");          Provider p = sRandom.getProvider();          Enumeration enumeration;          enumeration = p.elements();          System.out.println("The ... Read More

The parameters can be generated using the method generateParameters() in the class java.security.AlgorithmParameterGenerator. This method requires no parameters and it returns the AlgorithmParameter object.A program that demonstrates this is given as follows −Example Live Demoimport java.security.*; import java.util.*; public class Demo {    public static void main(String[] argv) {       try {          AlgorithmParameterGenerator apGenerator = AlgorithmParameterGenerator.getInstance("DiffieHellman");          apGenerator.init(1024);          AlgorithmParameters aParameters = apGenerator.generateParameters();          System.out.println(aParameters);       } catch (NoSuchAlgorithmException e) {          System.out.println("Error!!! NoSuchAlgorithmException");       } catch (ProviderException e) ... Read More

The algorithm name for the parameter generator can be obtained using the method getAlgorithm() in the class java.security.AlgorithmParameterGenerator. This method requires no parameters and it returns the algorithm name in string form.A program that demonstrates this is given as follows −Example Live Demoimport java.security.*; import java.util.*; public class Demo {    public static void main(String[] argv) {       try {          AlgorithmParameterGenerator apGenerator = AlgorithmParameterGenerator.getInstance("DiffieHellman");          apGenerator.init(1024);          String algorithm = apGenerator.getAlgorithm();          System.out.println("The Algorithm is: " + algorithm);       } catch (NoSuchAlgorithmException e) { ... Read More

The provider of the generator object can be obtained using the method getProvider() in the class java.security.AlgorithmParameterGenerator. This method requires no parameters and it returns the provider of the generator object.A program that demonstrates this is given as follows −Example Live Demoimport java.security.*; import java.util.*; public class Demo {    public static void main(String[] argv) {       try {          AlgorithmParameterGenerator apGenerator = AlgorithmParameterGenerator.getInstance("DiffieHellman");          apGenerator.init(1024);          Provider provider = apGenerator.getProvider();          System.out.println("The Provider is: " + provider);       } catch (NoSuchAlgorithmException e) { ... Read More

The algorithm name for the KeyFactory can be obtained using the method getAlgorithm() in the class java.security.KeyFactory. This method requires no parameters and it returns the algorithm name for the KeyFactory.A program that demonstrates this is given as follows −Example Live Demoimport java.security.*; import java.util.*; import java.security.spec.*; public class Demo {    public static void main(String[] argv) throws Exception {       try {          KeyFactory kf = KeyFactory.getInstance("RSA");          String algorithm = kf.getAlgorithm();          System.out.println("The Algortihm is: " + algorithm);       } catch (NoSuchAlgorithmException e) { ... Read More

The algorithm name for the key pair generator can be obtained using the method getAlgorithm() in the class java.security.KeyPairGenerator. This method requires no parameters and it returns the algorithm name for the key pair generator.A program that demonstrates this is given as follows −Example Live Demoimport java.security.*; import java.util.*; public class Demo {    public static void main(String[] argv) {       try {          KeyPairGenerator kpGenerator = KeyPairGenerator.getInstance("DSA");          String algorithm = kpGenerator.getAlgorithm();          System.out.println("The Algorithm is: " + algorithm);       } catch (NoSuchAlgorithmException e) {     ... Read More

The provider of the key pair object can be obtained using the getProvider() method in the class java.security.KeyPairGenerator. This method requires no parameters and it returns the provider of the key pair object.A program that demonstrates this is given as follows −Example Live Demoimport java.security.*; import java.util.*; public class Demo {    public static void main(String[] argv) {       try {          KeyPairGenerator kpGenerator = KeyPairGenerator.getInstance("DSA");          Provider p = kpGenerator.getProvider();          System.out.println("The Provider is: " + p.getName());       } catch (NoSuchAlgorithmException e) { ... Read More

A KeyPairGenerator object with the key pairs for a particular algorithm can be obtained using the getInstance() method in the class java.security.KeyPairGenerator. This method requires a single parameter i.e. the algorithm name and it returns the KeyPairGenerator object created.A program that demonstrates this is given as follows −Example Live Demoimport java.security.*; import java.util.*; public class Demo {    public static void main(String[] argv) {       try {          KeyPairGenerator kpGenerator = KeyPairGenerator.getInstance("RSA");          String algorithm = kpGenerator.getAlgorithm();          System.out.println("The Algorithm is: " + algorithm);       } catch (NoSuchAlgorithmException ... Read More

A key pair can be generated using the generateKeyPair() method in the class java.security.KeyPairGenerator. This method requires no parameters and it returns the key pair that is generated. Every time the generateKeyPair() method is called, it generates a new key pair.A program that demonstrates this is given as follows −Example Live Demoimport java.security.*; import java.util.*; public class Demo {    public static void main(String[] argv) throws Exception {       try {          KeyPairGenerator kpGenerator = KeyPairGenerator.getInstance("RSA");          KeyPair keyPair = kpGenerator.generateKeyPair();          System.out.println(keyPair);       } catch (NoSuchAlgorithmException e) ... Read More