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/*
* Copyright (C) 2012-2013 Dominik Schürmann <dominik@dominikschuermann.de>
*
* 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.helper;
import android.os.Bundle;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.util.Log;
import java.security.DigestException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Iterator;
import java.util.Set;
public class OtherHelper {
/**
* Logs bundle content to debug for inspecting the content
*
* @param bundle
* @param bundleName
*/
public static void logDebugBundle(Bundle bundle, String bundleName) {
if (Constants.DEBUG) {
if (bundle != null) {
Set<String> ks = bundle.keySet();
Iterator<String> iterator = ks.iterator();
Log.d(Constants.TAG, "Bundle " + bundleName + ":");
Log.d(Constants.TAG, "------------------------------");
while (iterator.hasNext()) {
String key = iterator.next();
Object value = bundle.get(key);
if (value != null) {
Log.d(Constants.TAG, key + " : " + value.toString());
} else {
Log.d(Constants.TAG, key + " : null");
}
}
Log.d(Constants.TAG, "------------------------------");
} else {
Log.d(Constants.TAG, "Bundle " + bundleName + ": null");
}
}
}
/**
* Converts the given bytes to a unique RGB color using SHA1 algorithm
*
* @param bytes
* @return an integer array containing 3 numeric color representations (Red, Green, Black)
* @throws NoSuchAlgorithmException
* @throws DigestException
*/
public static int[] getRgbForData(byte[] bytes) throws NoSuchAlgorithmException, DigestException {
MessageDigest md = MessageDigest.getInstance("SHA1");
md.update(bytes);
byte[] digest = md.digest();
int[] result = {((int) digest[0] + 256) % 256,
((int) digest[1] + 256) % 256,
((int) digest[2] + 256) % 256};
return result;
}
}
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