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/*
*
* This file is part of the iText (R) project.
Copyright (c) 1998-2020 iText Group NV
* Authors: Bruno Lowagie, Paulo Soares, et al.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License version 3
* as published by the Free Software Foundation with the addition of the
* following permission added to Section 15 as permitted in Section 7(a):
* FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
* ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
* OF THIRD PARTY RIGHTS
*
* 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 http://www.gnu.org/licenses or write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA, 02110-1301 USA, or download the license from the following URL:
* http://itextpdf.com/terms-of-use/
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU Affero General Public License.
*
* In accordance with Section 7(b) of the GNU Affero General Public License,
* a covered work must retain the producer line in every PDF that is created
* or manipulated using iText.
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial activities involving the iText software without
* disclosing the source code of your own applications.
* These activities include: offering paid services to customers as an ASP,
* serving PDFs on the fly in a web application, shipping iText with a closed
* source product.
*
* For more information, please contact iText Software Corp. at this
* address: [email protected]
*/
package com.itextpdf.text.pdf.security;
import java.security.GeneralSecurityException;
import java.util.HashMap;
/**
* Class that contains a map with the different encryption algorithms.
*/
public class EncryptionAlgorithms {
/** Maps IDs of encryption algorithms with its human-readable name. */
static final HashMap algorithmNames = new HashMap();
static {
algorithmNames.put("1.2.840.113549.1.1.1", "RSA");
algorithmNames.put("1.2.840.10040.4.1", "DSA");
algorithmNames.put("1.2.840.113549.1.1.2", "RSA");
algorithmNames.put("1.2.840.113549.1.1.4", "RSA");
algorithmNames.put("1.2.840.113549.1.1.5", "RSA");
algorithmNames.put("1.2.840.113549.1.1.14", "RSA");
algorithmNames.put("1.2.840.113549.1.1.11", "RSA");
algorithmNames.put("1.2.840.113549.1.1.12", "RSA");
algorithmNames.put("1.2.840.113549.1.1.13", "RSA");
algorithmNames.put("1.2.840.10040.4.3", "DSA");
algorithmNames.put("2.16.840.1.101.3.4.3.1", "DSA");
algorithmNames.put("2.16.840.1.101.3.4.3.2", "DSA");
algorithmNames.put("1.3.14.3.2.29", "RSA");
algorithmNames.put("1.3.36.3.3.1.2", "RSA");
algorithmNames.put("1.3.36.3.3.1.3", "RSA");
algorithmNames.put("1.3.36.3.3.1.4", "RSA");
algorithmNames.put("1.2.643.2.2.19", "ECGOST3410");
}
/**
* Gets the algorithm name for a certain id.
* @param oid an id (for instance "1.2.840.113549.1.1.1")
* @return an algorithm name (for instance "RSA")
*/
public static String getAlgorithm(String oid) {
String ret = algorithmNames.get(oid);
if (ret == null)
return oid;
else
return ret;
}
/**
* Allows new oid to be added.
* @param oid
* @param name
*/
public static boolean addAlgorithm(String oid, String name) throws GeneralSecurityException{
boolean status = false;
if(oid!=null && !oid.equals("")){
if(!algorithmNames.containsKey(oid)){
algorithmNames.put(oid, name);
status = true;
}else if(algorithmNames.get(oid).equals(name)){
status = false;
} else{
throw new GeneralSecurityException("already registered oid="+oid+", with name="+algorithmNames.get(oid));
}
} else{
throw new GeneralSecurityException("Can not register oid's with null or empty");
}
return status;
}
}
