El método de elements() de la clase java.security.Provider se utiliza para devolver una enumeración de los valores en la tabla hash dada.
Sintaxis:
public Enumeration<Object> elements()
Valor devuelto: este método devuelve una enumeración de los valores en la tabla hash.
A continuación se muestran los ejemplos para ilustrar el método de elements() :
Ejemplo 1:
Java
// Java program to demonstrate
// elements() method
import java.security.*;
import java.util.*;
public class GFG1 {
public static void main(String[] argv)
{
try {
// creating the object of SecureRandom
SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");
// getting the Provider of the SecureRandom sr
// by using method getProvider()
Provider provider = sr.getProvider();
// printing the Provider
System.out.println("Provider of the SHA1PRNG: " + provider);
// Declaring the variable of Enumeration<Object> type
Enumeration<Object> enume;
// getting the enumeration of the values
enume = provider.elements();
// printing the enumerated value
System.out.println("Enumeration of the values: \n");
while (enume.hasMoreElements()) {
System.out.println("Value is: " + enume.nextElement());
}
}
catch (NoSuchAlgorithmException e) {
System.out.println("Exception thrown : " + e);
}
}
}
Producción:
Provider of the SHA1PRNG: SUN version 1.8 Enumeration of the values: Value is: SHA1withDSA Value is: SHA1withDSA Value is: SHA1withDSA Value is: Software Value is: sun.security.provider.JavaKeyStore$DualFormatJKS Value is: SHA Value is: sun.security.provider.SHA Value is: sun.security.provider.JavaKeyStore$CaseExactJKS Value is: Software Value is: sun.security.provider.DSA$SHA256withDSA Value is: SHA Value is: SHA1withDSA Value is: Software Value is: Software Value is: Software Value is: sun.security.provider.DSA$RawDSA Value is: X.509 Value is: java.security.interfaces.DSAPublicKey|java.security.interfaces.DSAPrivateKey Value is: sun.security.provider.certpath.IndexedCollectionCertStore Value is: sun.security.provider.Sun Value is: SHA Value is: SHA1withDSA Value is: sun.security.provider.DomainKeyStore$DKS Value is: Software Value is: SHA256withDSA Value is: SHA224withDSA Value is: 1024 Value is: 1024 Value is: Software Value is: sun.security.provider.DSAKeyFactory Value is: sun.security.provider.ConfigFile$Spi Value is: SHA1withDSA Value is: SHA-224 Value is: DSA Value is: Software Value is: SHA-512 Value is: SHA-384 Value is: SHA-256 Value is: NONEwithDSA Value is: SUN Value is: DSA Value is: RFC3280 Value is: sun.security.provider.PolicySpiFile Value is: 2048 Value is: DSA Value is: DSA Value is: SHA1withDSA Value is: DSA Value is: sun.security.provider.SHA5$SHA384 Value is: sun.security.provider.SHA2$SHA224 Value is: Software Value is: sun.security.provider.DSAParameterGenerator Value is: java.security.interfaces.DSAPublicKey|java.security.interfaces.DSAPrivateKey Value is: sun.security.provider.NativePRNG$Blocking Value is: sun.security.provider.SHA5$SHA512 Value is: DSA Value is: sun.security.provider.certpath.SunCertPathBuilder Value is: SHA1withDSA Value is: SHA-224 Value is: Software Value is: SHA-512 Value is: 1.8 Value is: SHA-384 Value is: 2048 Value is: SHA-256 Value is: sun.security.provider.DSAParameters Value is: java.security.interfaces.DSAPublicKey|java.security.interfaces.DSAPrivateKey Value is: sun.security.provider.certpath.CollectionCertStore Value is: Software Value is: sun.security.provider.NativePRNG$NonBlocking Value is: 2048 Value is: sun.security.provider.certpath.ldap.LDAPCertStore Value is: sun.security.provider.X509Factory Value is: SHA256withDSA Value is: SHA224withDSA Value is: sun.security.provider.NativePRNG Value is: RFC2587 Value is: Software Value is: Software Value is: RFC3280 Value is: Software Value is: sun.security.provider.DSA$SHA224withDSA Value is: SHA1withDSA Value is: sun.security.provider.certpath.PKIXCertPathValidator Value is: SHA Value is: 2048 Value is: sun.security.provider.SecureRandom Value is: sun.security.provider.DSA$SHA1withDSA Value is: DSA Value is: Software Value is: sun.security.provider.DSAKeyPairGenerator$Current Value is: SUN (DSA key/parameter generation; DSA signing; SHA-1, MD5 digests; SecureRandom; X.509 certificates; JKS & DKS keystores; PKIX CertPathValidator; PKIX CertPathBuilder; LDAP, Collection CertStores, JavaPolicy Policy; JavaLoginConfig Configuration) Value is: DSA Value is: SHA1withDSA Value is: sun.security.provider.MD5 Value is: SHA1withDSA Value is: sun.security.provider.SHA2$SHA256 Value is: DSA Value is: java.security.interfaces.DSAPublicKey|java.security.interfaces.DSAPrivateKey Value is: sun.security.provider.MD2
Ejemplo 2:
Java
// Java program to demonstrate
// elements() method
import java.security.*;
import java.util.*;
public class GFG1 {
public static void main(String[] argv) throws Exception
{
try {
// creating the object of KeyPairGenerator
KeyPairGenerator sr = KeyPairGenerator.getInstance("DSA", "SUN");
// getting the Provider of the KeyPairGenerator sr
// by using method getProvider()
Provider provider = sr.getProvider();
// printing the Provider
System.out.println("Provider of the DSA, SUN: " + provider);
// Declaring the variable of Enumeration<Object> type
Enumeration<Object> enume;
// getting the enumeration of the values
enume = provider.elements();
// printing the enumerated value
System.out.println("enumeration of the values: \n");
while (enume.hasMoreElements()) {
System.out.println("Value is: " + enume.nextElement());
}
}
catch (NoSuchAlgorithmException e) {
System.out.println("Exception thrown : " + e);
}
}
}
Producción:
Provider of the DSA, SUN: SUN version 1.8 enumeration of the values: Value is: SHA1withDSA Value is: SHA1withDSA Value is: SHA1withDSA Value is: Software Value is: sun.security.provider.JavaKeyStore$DualFormatJKS Value is: SHA Value is: sun.security.provider.SHA Value is: sun.security.provider.JavaKeyStore$CaseExactJKS Value is: Software Value is: sun.security.provider.DSA$SHA256withDSA Value is: SHA Value is: SHA1withDSA Value is: Software Value is: Software Value is: Software Value is: sun.security.provider.DSA$RawDSA Value is: X.509 Value is: java.security.interfaces.DSAPublicKey|java.security.interfaces.DSAPrivateKey Value is: sun.security.provider.certpath.IndexedCollectionCertStore Value is: sun.security.provider.Sun Value is: SHA Value is: SHA1withDSA Value is: sun.security.provider.DomainKeyStore$DKS Value is: Software Value is: SHA256withDSA Value is: SHA224withDSA Value is: 1024 Value is: 1024 Value is: Software Value is: sun.security.provider.DSAKeyFactory Value is: sun.security.provider.ConfigFile$Spi Value is: SHA1withDSA Value is: SHA-224 Value is: DSA Value is: Software Value is: SHA-512 Value is: SHA-384 Value is: SHA-256 Value is: NONEwithDSA Value is: SUN Value is: DSA Value is: RFC3280 Value is: sun.security.provider.PolicySpiFile Value is: 2048 Value is: DSA Value is: DSA Value is: SHA1withDSA Value is: DSA Value is: sun.security.provider.SHA5$SHA384 Value is: sun.security.provider.SHA2$SHA224 Value is: Software Value is: sun.security.provider.DSAParameterGenerator Value is: java.security.interfaces.DSAPublicKey|java.security.interfaces.DSAPrivateKey Value is: sun.security.provider.NativePRNG$Blocking Value is: sun.security.provider.SHA5$SHA512 Value is: DSA Value is: sun.security.provider.certpath.SunCertPathBuilder Value is: SHA1withDSA Value is: SHA-224 Value is: Software Value is: SHA-512 Value is: 1.8 Value is: SHA-384 Value is: 2048 Value is: SHA-256 Value is: sun.security.provider.DSAParameters Value is: java.security.interfaces.DSAPublicKey|java.security.interfaces.DSAPrivateKey Value is: sun.security.provider.certpath.CollectionCertStore Value is: Software Value is: sun.security.provider.NativePRNG$NonBlocking Value is: 2048 Value is: sun.security.provider.certpath.ldap.LDAPCertStore Value is: sun.security.provider.X509Factory Value is: SHA256withDSA Value is: SHA224withDSA Value is: sun.security.provider.NativePRNG Value is: RFC2587 Value is: Software Value is: Software Value is: RFC3280 Value is: Software Value is: sun.security.provider.DSA$SHA224withDSA Value is: SHA1withDSA Value is: sun.security.provider.certpath.PKIXCertPathValidator Value is: SHA Value is: 2048 Value is: sun.security.provider.SecureRandom Value is: sun.security.provider.DSA$SHA1withDSA Value is: DSA Value is: Software Value is: sun.security.provider.DSAKeyPairGenerator$Current Value is: SUN (DSA key/parameter generation; DSA signing; SHA-1, MD5 digests; SecureRandom; X.509 certificates; JKS & DKS keystores; PKIX CertPathValidator; PKIX CertPathBuilder; LDAP, Collection CertStores, JavaPolicy Policy; JavaLoginConfig Configuration) Value is: DSA Value is: SHA1withDSA Value is: sun.security.provider.MD5 Value is: SHA1withDSA Value is: sun.security.provider.SHA2$SHA256 Value is: DSA Value is: java.security.interfaces.DSAPublicKey|java.security.interfaces.DSAPrivateKey Value is: sun.security.provider.MD2
Publicación traducida automáticamente
Artículo escrito por RohitPrasad3 y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA