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Object Oriented Programming Articles
Page 232 of 589
SecureRandom getProvider() method in Java
The provider for the SecureRandom object can be obtained using the method getProvider() in the class java.security.SecureRandom. This method requires no parameters and it returns the provider for the SecureRandom object.A program that demonstrates this is given as follows −Exampleimport java.security.*; import java.util.*; public class Demo { public static void main(String[] argv) { try { SecureRandom sRandom = SecureRandom.getInstance("SHA1PRNG"); Provider provider = sRandom.getProvider(); System.out.println("The Provider is: " + provider.getName()); } catch (NoSuchAlgorithmException e) { ...
Read MoreSecureRandom setSeed() method in Java
The random object can be reseeded using the setSeed() method in the class java.security.SecureRandom. This method requires a single parameter i.e. the required seed byte array and it returns the reseeded random object.A program that demonstrates this is given as follows −Exampleimport java.security.*; import java.util.*; public class Demo { public static void main(String[] argv) { try { SecureRandom sRandom = SecureRandom.getInstance("SHA1PRNG"); String str = "Apple"; byte[] arrB = str.getBytes(); sRandom.setSeed(arrB); byte[] arrSeed = sRandom.getSeed(5); ...
Read MoreSecureRandom nextBytes() method in Java
The number of random bytes as specified by the user can be obtained using the nextBytes() method in the class java.security.SecureRandom. This method requires a single parameter i.e. a random byte array and it returns the random bytes as specified by the user.A program that demonstrates this is given as follows −Exampleimport java.security.*; import java.util.*; public class Demo { public static void main(String[] argv) { try { SecureRandom sRandom = SecureRandom.getInstance("SHA1PRNG"); String s = "Apple"; byte[] arrB = s.getBytes(); System.out.println("The ...
Read MoreKeyPairGenerator getProvider() method in Java
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 −Exampleimport 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 MoreKeyPairGenerator getAlgorithm() method in Java
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 −Exampleimport 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 MoreAlgorithmParameterGenerator getProvider() method in Java
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 −Exampleimport 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 MoreAlgorithmParameterGenerator getAlgorithm() method in Java
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 −Exampleimport 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 MoreProvider entrySet() method in Java
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 −Exampleimport 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 = set.iterator(); ...
Read MoreProvider get() method in Java
The value to which a key is mapped can be obtained using the get() method in the class java.security.Provider. This method requires a single parameter i.e. the key whose value is required. It returns the value to which the key is mapped or it returns null if there is no value to which the key is mapped.A program that demonstrates this is given as follows −Exampleimport java.security.*; import java.util.*; public class Demo { public static void main(String[] argv) { try { SecureRandom sRandom = SecureRandom.getInstance("SHA1PRNG"); Provider p = ...
Read MoreProvider getInfo() method in Java
An easily readable description of the provider and its services can be obtained using the method getInfo() in the class java.security.Provider. This method requires no parameters and it returns a provider and services description.A program that demonstrates this is given as follows −Exampleimport java.security.*; import java.util.*; public class Demo { public static void main(String[] argv) throws Exception { try { SecureRandom sRandom = SecureRandom.getInstance("SHA1PRNG"); Provider p = sRandom.getProvider(); System.out.println("The information is as follows:"); System.out.println(p.getInfo()); } catch (NoSuchAlgorithmException ...
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