org.jpos.q2.cli.ssm.actions.FK Maven / Gradle / Ivy
/*
* jPOS Project [http://jpos.org]
* Copyright (C) 2000-2023 jPOS Software SRL
*
* 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 org.jpos.q2.cli.ssm.actions;
import org.jpos.q2.CLIContext;
import org.jpos.q2.cli.ssm.SsmActionBase;
import org.jpos.security.SMException;
import org.jpos.security.jceadapter.JCESecurityModule;
/**
* Form a key from clear components.
*
* @author Alwyn Schoeman - [email protected]
*/
public class FK extends SsmActionBase {
private boolean prompt = false;
@Override
protected boolean checkUsage(CLIContext cli, String[] strings) {
// This doesn't cover all combinations, but it is assumed the operation will fail elsewhere.
if (strings.length == 4) {
if (!strings[3].equals("-prompt")) {
cli.println("Usage: FK KeyLength keyType -prompt");
cli.println("Usage: FK KeyLength keyType component1 component2 component3");
return false;
} else {
prompt = true;
return true;
}
}
if (strings.length < 6) {
cli.println("Usage: FK KeyLength keyType -prompt");
cli.println("Usage: FK KeyLength keyType component1 component2 component3");
return false;
}
return true;
}
@Override
protected void doCommand(
CLIContext cli,
JCESecurityModule sm,
short keyLength,
String[] strings)
throws SMException {
if (prompt) {
String key1 = readKeyComponent(cli, 1);
String key2 = readKeyComponent(cli, 2);
String key3 = readKeyComponent(cli, 3);
sm.formKEYfromThreeClearComponents(
keyLength, strings[2].toUpperCase(), key1, key2, key3);
} else {
sm.formKEYfromThreeClearComponents(
keyLength, strings[2].toUpperCase(), strings[3], strings[4], strings[5]);
}
}
private String readKeyComponent(CLIContext cli, int kcNumber) {
boolean validComponent = false;
String key = null;
cli.println("Key component " + kcNumber + ":");
while (!validComponent) {
while (true) {
key = cli.readSecurely("Please enter key component:");
if (key != null && key.length() == 32) break;
cli.println("Key component must be 32 hexadecimal characters.");
}
String second;
while (true) {
second = cli.readSecurely("Please re-enter key component:");
if (second != null && second.length() == 32) break;
cli.println("Key component must be 32 hexadecimal characters.");
}
validComponent = key.equals(second);
if (!validComponent) {
cli.println("Entered key components don't match.");
}
}
return key;
}
}