open-keychain/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ssh/utils/SshUtils.java

60 lines
2.0 KiB
Java

/*
* Copyright (C) 2017 Christian Hagau <ach@hagau.se>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.sufficientlysecure.keychain.ssh.utils;
import java.security.NoSuchAlgorithmException;
public class SshUtils {
public static String getCurveName(String curveOid) throws NoSuchAlgorithmException {
// see RFC5656 section 10.{1,2}
switch (curveOid) {
// REQUIRED curves
case "1.2.840.10045.3.1.7":
return "nistp256";
case "1.3.132.0.34":
return "nistp384";
case "1.3.132.0.35":
return "nistp521";
// RECOMMENDED curves
case "1.3.132.0.1":
return "1.3.132.0.1";
case "1.2.840.10045.3.1.1":
return "1.2.840.10045.3.1.1";
case "1.3.132.0.33":
return "1.3.132.0.33";
case "1.3.132.0.26":
return "1.3.132.0.26";
case "1.3.132.0.27":
return "1.3.132.0.27";
case "1.3.132.0.16":
return "1.3.132.0.16";
case "1.3.132.0.36":
return "1.3.132.0.36";
case "1.3.132.0.37":
return "1.3.132.0.37";
case "1.3.132.0.38":
return "1.3.132.0.38";
default:
throw new NoSuchAlgorithmException("Can't translate curve OID to SSH curve identifier");
}
}
}