com.itextpdf.signatures.KeyStoreUtil Maven / Gradle / Ivy
/*
This file is part of the iText (R) project.
Copyright (c) 1998-2023 Apryse Group NV
Authors: Apryse Software.
This program is offered under a commercial and under the AGPL license.
For commercial licensing, contact us at https://itextpdf.com/sales. For AGPL licensing, see below.
AGPL licensing:
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see .
*/
package com.itextpdf.signatures;
import com.itextpdf.kernel.exceptions.PdfException;
import java.io.File;
import java.io.FileInputStream;
import java.security.KeyStore;
/**
* Utility class with some KeyStore related methods.
*/
public class KeyStoreUtil {
/**
* Loads the default root certificates at <java.home>/lib/security/cacerts.
* @param provider the provider or null
for the default provider
* @return a KeyStore
*/
public static KeyStore loadCacertsKeyStore(String provider) {
File file = new File(System.getProperty("java.home"), "lib");
file = new File(file, "security");
file = new File(file, "cacerts");
FileInputStream fin = null;
try {
fin = new FileInputStream(file);
KeyStore k;
if (provider == null) {
k = KeyStore.getInstance("JKS");
} else {
k = KeyStore.getInstance("JKS", provider);
}
k.load(fin, null);
return k;
}
catch (Exception e) {
throw new PdfException(e);
}
finally {
try {
if (fin != null) {
fin.close();
}
} catch (Exception ex) {
// do nothing
}
}
}
/**
* Loads the default root certificates at <java.home>/lib/security/cacerts
* with the default provider.
* @return a KeyStore
*/
public static KeyStore loadCacertsKeyStore() {
return loadCacertsKeyStore(null);
}
}