import javax.security.cert.Certificate; //导入依赖的package包/类
public static boolean verify(String hexSignature, String texto,
			String keystorePath, String alias, String keystorePassword) 
					throws KeyStoreException, NoSuchAlgorithmException, 
							CertificateException, IOException, InvalidKeyException, 
							NoSuchProviderException, DecoderException, SignatureException {
	boolean resultado = false;
	InputStream keystoreLocation = null;
	if (!keystorePath.equals("*")) {
		FileInputStream fisKs = new FileInputStream(keystorePath);
		keystoreLocation = fisKs;
	}
	else {
		InputStream isKs = SignerSample.class.getClassLoader().getResourceAsStream("verifykeystore.jks");
		keystoreLocation = isKs;
	}
    KeyStore keystore = KeyStore.getInstance(KeyStore.getDefaultType());
    keystore.load(keystoreLocation, keystorePassword.toCharArray());
    java.security.cert.Certificate certificate = keystore.getCertificate(alias);
    PublicKey pubKey = certificate.getPublicKey();
   	Signature sig = Signature.getInstance("MD5withRSA", "SunRsaSign"); 
   	sig.initVerify(pubKey);
   	Hex hex = new Hex();
   	byte [] textContent = texto.getBytes("UTF-8");
    sig.update(textContent);
   	byte [] signature = (byte[]) hex.decode(hexSignature);
    
   	resultado = sig.verify(signature);
   	
	return resultado;
}
 

import javax.security.cert.Certificate; //导入依赖的package包/类
@Override
public X509Certificate[] getAcceptedIssuers() {
	try {
		
		KeyStore ks = gks;
		
		if (ks == null) {
			ks = GlobalEntries.getGlobalEntries().getConfigManager().getKeyStore();
		}
		
		ArrayList<X509Certificate> certs = new ArrayList<X509Certificate>();
		Enumeration<String> aliases = ks.aliases();
		while (aliases.hasMoreElements()) {
			String alias = aliases.nextElement();
			java.security.cert.Certificate c = ks.getCertificate(alias);
			if (c instanceof X509Certificate) {
				if ( issuers == null || issuers.contains(((X509Certificate) c).getSubjectX500Principal())) {
					certs.add((X509Certificate) c);
				}
			}
		}
		
		X509Certificate[] x509s = new X509Certificate[certs.size()];
		certs.toArray(x509s);
		return x509s;
		
	} catch (Exception e) {
		e.printStackTrace();
		return null;
	}
}
 

import javax.security.cert.Certificate; //导入依赖的package包/类
@Override
public X509Certificate[] getAcceptedIssuers() {
	try {
		
		KeyStore ks = gks;
		

		
		ArrayList<X509Certificate> certs = new ArrayList<X509Certificate>();
		Enumeration<String> aliases = ks.aliases();
		while (aliases.hasMoreElements()) {
			String alias = aliases.nextElement();
			java.security.cert.Certificate c = ks.getCertificate(alias);
			if (c instanceof X509Certificate) {
				if ( issuers == null || issuers.contains(((X509Certificate) c).getSubjectX500Principal().getName())) {
					certs.add((X509Certificate) c);
				}
			}
		}
		
		X509Certificate[] x509s = new X509Certificate[certs.size()];
		certs.toArray(x509s);
		return x509s;
		
	} catch (Exception e) {
		e.printStackTrace();
		return null;
	}
}