Rename folder structure from OpenPGP Keychain to OpenKeychain

This commit is contained in:
Dominik Schürmann
2014-04-06 12:57:42 +02:00
parent 17997dd362
commit 6d11371905
532 changed files with 7 additions and 7 deletions

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/*
* Copyright (C) 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.util;
import android.annotation.SuppressLint;
import android.app.Activity;
import org.spongycastle.bcpg.HashAlgorithmTags;
import org.spongycastle.openpgp.PGPEncryptedData;
import org.sufficientlysecure.keychain.Id;
import org.sufficientlysecure.keychain.R;
import java.util.HashMap;
@SuppressLint("UseSparseArrays")
public class AlgorithmNames {
Activity mActivity;
HashMap<Integer, String> mEncryptionNames = new HashMap<Integer, String>();
HashMap<Integer, String> mHashNames = new HashMap<Integer, String>();
HashMap<Integer, String> mCompressionNames = new HashMap<Integer, String>();
public AlgorithmNames(Activity context) {
super();
this.mActivity = context;
mEncryptionNames.put(PGPEncryptedData.AES_128, "AES-128");
mEncryptionNames.put(PGPEncryptedData.AES_192, "AES-192");
mEncryptionNames.put(PGPEncryptedData.AES_256, "AES-256");
mEncryptionNames.put(PGPEncryptedData.BLOWFISH, "Blowfish");
mEncryptionNames.put(PGPEncryptedData.TWOFISH, "Twofish");
mEncryptionNames.put(PGPEncryptedData.CAST5, "CAST5");
mEncryptionNames.put(PGPEncryptedData.DES, "DES");
mEncryptionNames.put(PGPEncryptedData.TRIPLE_DES, "Triple DES");
mEncryptionNames.put(PGPEncryptedData.IDEA, "IDEA");
mHashNames.put(HashAlgorithmTags.MD5, "MD5");
mHashNames.put(HashAlgorithmTags.RIPEMD160, "RIPEMD-160");
mHashNames.put(HashAlgorithmTags.SHA1, "SHA-1");
mHashNames.put(HashAlgorithmTags.SHA224, "SHA-224");
mHashNames.put(HashAlgorithmTags.SHA256, "SHA-256");
mHashNames.put(HashAlgorithmTags.SHA384, "SHA-384");
mHashNames.put(HashAlgorithmTags.SHA512, "SHA-512");
mCompressionNames.put(Id.choice.compression.none, mActivity.getString(R.string.choice_none)
+ " (" + mActivity.getString(R.string.compression_fast) + ")");
mCompressionNames.put(Id.choice.compression.zip,
"ZIP (" + mActivity.getString(R.string.compression_fast) + ")");
mCompressionNames.put(Id.choice.compression.zlib,
"ZLIB (" + mActivity.getString(R.string.compression_fast) + ")");
mCompressionNames.put(Id.choice.compression.bzip2,
"BZIP2 (" + mActivity.getString(R.string.compression_very_slow) + ")");
}
public HashMap<Integer, String> getEncryptionNames() {
return mEncryptionNames;
}
public void setEncryptionNames(HashMap<Integer, String> encryptionNames) {
this.mEncryptionNames = encryptionNames;
}
public HashMap<Integer, String> getHashNames() {
return mHashNames;
}
public void setHashNames(HashMap<Integer, String> hashNames) {
this.mHashNames = hashNames;
}
public HashMap<Integer, String> getCompressionNames() {
return mCompressionNames;
}
public void setCompressionNames(HashMap<Integer, String> compressionNames) {
this.mCompressionNames = compressionNames;
}
}

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/*
* Copyright (C) 2010 Thialfihar <thi@thialfihar.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.sufficientlysecure.keychain.util;
public class Choice {
private String mName;
private int mId;
public Choice() {
mId = -1;
mName = "";
}
public Choice(int id, String name) {
mId = id;
mName = name;
}
public int getId() {
return mId;
}
public String getName() {
return mName;
}
@Override
public String toString() {
return mName;
}
}

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/*
* Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
* Copyright (C) 2011 Thialfihar <thi@thialfihar.org>
* Copyright (C) 2011 Senecaso
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.sufficientlysecure.keychain.util;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.pgp.PgpHelper;
import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListEntry;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.InetAddress;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.GregorianCalendar;
import java.util.List;
import java.util.Locale;
import java.util.TimeZone;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class HkpKeyServer extends KeyServer {
private static class HttpError extends Exception {
private static final long serialVersionUID = 1718783705229428893L;
private int mCode;
private String mData;
public HttpError(int code, String data) {
super("" + code + ": " + data);
mCode = code;
mData = data;
}
public int getCode() {
return mCode;
}
public String getData() {
return mData;
}
}
private String mHost;
private short mPort;
/**
* pub:%keyid%:%algo%:%keylen%:%creationdate%:%expirationdate%:%flags%
* <ul>
* <li>%<b>keyid</b>% = this is either the fingerprint or the key ID of the key.
* Either the 16-digit or 8-digit key IDs are acceptable, but obviously the fingerprint is best.
* </li>
* <li>%<b>algo</b>% = the algorithm number, (i.e. 1==RSA, 17==DSA, etc).
* See <a href="http://tools.ietf.org/html/rfc2440#section-9.1">RFC-2440</a></li>
* <li>%<b>keylen</b>% = the key length (i.e. 1024, 2048, 4096, etc.)</li>
* <li>%<b>creationdate</b>% = creation date of the key in standard
* <a href="http://tools.ietf.org/html/rfc2440#section-9.1">RFC-2440</a> form (i.e. number of
* seconds since 1/1/1970 UTC time)</li>
* <li>%<b>expirationdate</b>% = expiration date of the key in standard
* <a href="http://tools.ietf.org/html/rfc2440#section-9.1">RFC-2440</a> form (i.e. number of
* seconds since 1/1/1970 UTC time)</li>
* <li>%<b>flags</b>% = letter codes to indicate details of the key, if any. Flags may be in any
* order. The meaning of "disabled" is implementation-specific. Note that individual flags may
* be unimplemented, so the absence of a given flag does not necessarily mean the absence of the
* detail.
* <ul>
* <li>r == revoked</li>
* <li>d == disabled</li>
* <li>e == expired</li>
* </ul>
* </li>
* </ul>
*
* @see <a href="http://tools.ietf.org/html/draft-shaw-openpgp-hkp-00#section-5.2">
* 5.2. Machine Readable Indexes</a>
* in Internet-Draft OpenPGP HTTP Keyserver Protocol Document
*/
public static final Pattern PUB_KEY_LINE = Pattern
.compile("pub:([0-9a-fA-F]+):([0-9]+):([0-9]+):([0-9]+):([0-9]*):([rde]*)[ \n\r]*" // pub line
+ "(uid:(.*):([0-9]+):([0-9]*):([rde]*))+", // one or more uid lines
Pattern.CASE_INSENSITIVE);
/**
* uid:%escaped uid string%:%creationdate%:%expirationdate%:%flags%
* <ul>
* <li>%<b>escaped uid string</b>% = the user ID string, with HTTP %-escaping for anything that
* isn't 7-bit safe as well as for the ":" character. Any other characters may be escaped, as
* desired.</li>
* <li>%<b>creationdate</b>% = creation date of the key in standard
* <a href="http://tools.ietf.org/html/rfc2440#section-9.1">RFC-2440</a> form (i.e. number of
* seconds since 1/1/1970 UTC time)</li>
* <li>%<b>expirationdate</b>% = expiration date of the key in standard
* <a href="http://tools.ietf.org/html/rfc2440#section-9.1">RFC-2440</a> form (i.e. number of
* seconds since 1/1/1970 UTC time)</li>
* <li>%<b>flags</b>% = letter codes to indicate details of the key, if any. Flags may be in any
* order. The meaning of "disabled" is implementation-specific. Note that individual flags may
* be unimplemented, so the absence of a given flag does not necessarily mean the absence of
* the detail.
* <ul>
* <li>r == revoked</li>
* <li>d == disabled</li>
* <li>e == expired</li>
* </ul>
* </li>
* </ul>
*/
public static final Pattern UID_LINE = Pattern
.compile("uid:(.*):([0-9]+):([0-9]*):([rde]*)",
Pattern.CASE_INSENSITIVE);
private static final short PORT_DEFAULT = 11371;
/**
* @param hostAndPort may be just
* "<code>hostname</code>" (eg. "<code>pool.sks-keyservers.net</code>"), then it will
* connect using {@link #PORT_DEFAULT}. However, port may be specified after colon
* ("<code>hostname:port</code>", eg. "<code>p80.pool.sks-keyservers.net:80</code>").
*/
public HkpKeyServer(String hostAndPort) {
String host = hostAndPort;
short port = PORT_DEFAULT;
final int colonPosition = hostAndPort.lastIndexOf(':');
if (colonPosition > 0) {
host = hostAndPort.substring(0, colonPosition);
final String portStr = hostAndPort.substring(colonPosition + 1);
port = Short.decode(portStr);
}
mHost = host;
mPort = port;
}
public HkpKeyServer(String host, short port) {
mHost = host;
mPort = port;
}
private static String readAll(InputStream in, String encoding) throws IOException {
ByteArrayOutputStream raw = new ByteArrayOutputStream();
byte buffer[] = new byte[1 << 16];
int n = 0;
while ((n = in.read(buffer)) != -1) {
raw.write(buffer, 0, n);
}
if (encoding == null) {
encoding = "utf8";
}
return raw.toString(encoding);
}
private String query(String request) throws QueryException, HttpError {
InetAddress ips[];
try {
ips = InetAddress.getAllByName(mHost);
} catch (UnknownHostException e) {
throw new QueryException(e.toString());
}
for (int i = 0; i < ips.length; ++i) {
try {
String url = "http://" + ips[i].getHostAddress() + ":" + mPort + request;
Log.d(Constants.TAG, "hkp keyserver query: " + url);
URL realUrl = new URL(url);
HttpURLConnection conn = (HttpURLConnection) realUrl.openConnection();
conn.setConnectTimeout(5000);
conn.setReadTimeout(25000);
conn.connect();
int response = conn.getResponseCode();
if (response >= 200 && response < 300) {
return readAll(conn.getInputStream(), conn.getContentEncoding());
} else {
String data = readAll(conn.getErrorStream(), conn.getContentEncoding());
throw new HttpError(response, data);
}
} catch (MalformedURLException e) {
// nothing to do, try next IP
} catch (IOException e) {
// nothing to do, try next IP
}
}
throw new QueryException("querying server(s) for '" + mHost + "' failed");
}
@Override
public ArrayList<ImportKeysListEntry> search(String query) throws QueryException, TooManyResponses,
InsufficientQuery {
ArrayList<ImportKeysListEntry> results = new ArrayList<ImportKeysListEntry>();
if (query.length() < 3) {
throw new InsufficientQuery();
}
String encodedQuery;
try {
encodedQuery = URLEncoder.encode(query, "utf8");
} catch (UnsupportedEncodingException e) {
return null;
}
String request = "/pks/lookup?op=index&options=mr&search=" + encodedQuery;
String data;
try {
data = query(request);
} catch (HttpError e) {
if (e.getCode() == 404) {
return results;
} else {
if (e.getData().toLowerCase(Locale.US).contains("no keys found")) {
return results;
} else if (e.getData().toLowerCase(Locale.US).contains("too many")) {
throw new TooManyResponses();
} else if (e.getData().toLowerCase(Locale.US).contains("insufficient")) {
throw new InsufficientQuery();
}
}
throw new QueryException("querying server(s) for '" + mHost + "' failed");
}
final Matcher matcher = PUB_KEY_LINE.matcher(data);
while (matcher.find()) {
final ImportKeysListEntry entry = new ImportKeysListEntry();
entry.setBitStrength(Integer.parseInt(matcher.group(3)));
final int algorithmId = Integer.decode(matcher.group(2));
entry.setAlgorithm(ImportKeysListEntry.getAlgorithmFromId(algorithmId));
// group 1 contains the full fingerprint (v4) or the long key id if available
// see http://bit.ly/1d4bxbk and http://bit.ly/1gD1wwr
String fingerprintOrKeyId = matcher.group(1);
if (fingerprintOrKeyId.length() > 16) {
entry.setFingerPrintHex(fingerprintOrKeyId.toLowerCase(Locale.US));
entry.setKeyIdHex("0x" + fingerprintOrKeyId.substring(fingerprintOrKeyId.length()
- 16, fingerprintOrKeyId.length()));
} else {
// set key id only
entry.setKeyIdHex("0x" + fingerprintOrKeyId);
}
final long creationDate = Long.parseLong(matcher.group(4));
final GregorianCalendar tmpGreg = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
tmpGreg.setTimeInMillis(creationDate * 1000);
entry.setDate(tmpGreg.getTime());
entry.setRevoked(matcher.group(6).contains("r"));
ArrayList<String> userIds = new ArrayList<String>();
final String uidLines = matcher.group(7);
final Matcher uidMatcher = UID_LINE.matcher(uidLines);
while (uidMatcher.find()) {
String tmp = uidMatcher.group(1).trim();
if (tmp.contains("%")) {
try {
// converts Strings like "Universit%C3%A4t" to a proper encoding form "Universität".
tmp = (URLDecoder.decode(tmp, "UTF8"));
} catch (UnsupportedEncodingException ignored) {
// will never happen, because "UTF8" is supported
}
}
userIds.add(tmp);
}
entry.setUserIds(userIds);
results.add(entry);
}
return results;
}
@Override
public String get(String keyIdHex) throws QueryException {
HttpClient client = new DefaultHttpClient();
try {
String query = "http://" + mHost + ":" + mPort +
"/pks/lookup?op=get&options=mr&search=" + keyIdHex;
Log.d(Constants.TAG, "hkp keyserver get: " + query);
HttpGet get = new HttpGet(query);
HttpResponse response = client.execute(get);
if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
throw new QueryException("not found");
}
HttpEntity entity = response.getEntity();
InputStream is = entity.getContent();
String data = readAll(is, EntityUtils.getContentCharSet(entity));
Matcher matcher = PgpHelper.PGP_PUBLIC_KEY.matcher(data);
if (matcher.find()) {
return matcher.group(1);
}
} catch (IOException e) {
// nothing to do, better luck on the next keyserver
} finally {
client.getConnectionManager().shutdown();
}
return null;
}
@Override
public void add(String armoredKey) throws AddKeyException {
HttpClient client = new DefaultHttpClient();
try {
String query = "http://" + mHost + ":" + mPort + "/pks/add";
HttpPost post = new HttpPost(query);
Log.d(Constants.TAG, "hkp keyserver add: " + query);
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("keytext", armoredKey));
post.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = client.execute(post);
if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
throw new AddKeyException();
}
} catch (IOException e) {
// nothing to do, better luck on the next keyserver
} finally {
client.getConnectionManager().shutdown();
}
}
}

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/*
* Copyright (C) 2010-2014 Thialfihar <thi@thialfihar.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.sufficientlysecure.keychain.util;
import java.io.InputStream;
public class InputData {
private PositionAwareInputStream mInputStream;
private long mSize;
public InputData(InputStream inputStream, long size) {
mInputStream = new PositionAwareInputStream(inputStream);
mSize = size;
}
public InputStream getInputStream() {
return mInputStream;
}
public long getSize() {
return mSize;
}
public long getStreamPosition() {
return mInputStream.position();
}
}

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/*
* Copyright 2012 ZXing authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.sufficientlysecure.keychain.util;
import com.google.zxing.integration.android.IntentIntegrator;
import android.content.Intent;
import android.support.v4.app.Fragment;
/**
* IntentIntegrator for the V4 Android compatibility package.
*
* @author Lachezar Dobrev
*/
public final class IntentIntegratorSupportV4 extends IntentIntegrator {
private final Fragment mFragment;
/**
* @param fragment Fragment to handle activity response.
*/
public IntentIntegratorSupportV4(Fragment fragment) {
super(fragment.getActivity());
this.mFragment = fragment;
}
@Override
protected void startActivityForResult(Intent intent, int code) {
mFragment.startActivityForResult(intent, code);
}
}

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/*
* Copyright (C) 2010 Thialfihar <thi@thialfihar.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.sufficientlysecure.keychain.util;
import java.util.ArrayList;
import java.util.Iterator;
public class IterableIterator<T> implements Iterable<T> {
private Iterator<T> mIter;
public IterableIterator(Iterator<T> iter, boolean failsafe) {
mIter = iter;
if (failsafe && mIter == null) {
// is there a better way?
mIter = new ArrayList<T>().iterator();
}
}
public IterableIterator(Iterator<T> iter) {
this(iter, false);
}
public Iterator<T> iterator() {
return mIter;
}
}

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/*
* Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
* Copyright (C) 2011 Thialfihar <thi@thialfihar.org>
* Copyright (C) 2011 Senecaso
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.sufficientlysecure.keychain.util;
import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListEntry;
import java.util.List;
public abstract class KeyServer {
public static class QueryException extends Exception {
private static final long serialVersionUID = 2703768928624654512L;
public QueryException(String message) {
super(message);
}
}
public static class TooManyResponses extends Exception {
private static final long serialVersionUID = 2703768928624654513L;
}
public static class InsufficientQuery extends Exception {
private static final long serialVersionUID = 2703768928624654514L;
}
public static class AddKeyException extends Exception {
private static final long serialVersionUID = -507574859137295530L;
}
abstract List<ImportKeysListEntry> search(String query) throws QueryException, TooManyResponses,
InsufficientQuery;
abstract String get(String keyIdHex) throws QueryException;
abstract void add(String armoredKey) throws AddKeyException;
}

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/*
* Copyright (C) 2014 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.util;
public interface KeychainServiceListener {
boolean hasServiceStopped();
}

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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.util;
import org.sufficientlysecure.keychain.Constants;
/**
* Wraps Android Logging to enable or disable debug output using Constants
*/
public final class Log {
public static void v(String tag, String msg) {
if (Constants.DEBUG) {
android.util.Log.v(tag, msg);
}
}
public static void v(String tag, String msg, Throwable tr) {
if (Constants.DEBUG) {
android.util.Log.v(tag, msg, tr);
}
}
public static void d(String tag, String msg) {
if (Constants.DEBUG) {
android.util.Log.d(tag, msg);
}
}
public static void d(String tag, String msg, Throwable tr) {
if (Constants.DEBUG) {
android.util.Log.d(tag, msg, tr);
}
}
public static void i(String tag, String msg) {
if (Constants.DEBUG) {
android.util.Log.i(tag, msg);
}
}
public static void i(String tag, String msg, Throwable tr) {
if (Constants.DEBUG) {
android.util.Log.i(tag, msg, tr);
}
}
public static void w(String tag, String msg) {
android.util.Log.w(tag, msg);
}
public static void w(String tag, String msg, Throwable tr) {
android.util.Log.w(tag, msg, tr);
}
public static void w(String tag, Throwable tr) {
android.util.Log.w(tag, tr);
}
public static void e(String tag, String msg) {
android.util.Log.e(tag, msg);
}
public static void e(String tag, String msg, Throwable tr) {
android.util.Log.e(tag, msg, tr);
}
}

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/*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will Google be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, as long as the origin is not misrepresented.
*/
package org.sufficientlysecure.keychain.util;
import android.os.Build;
import android.os.Process;
import android.util.Log;
import java.io.*;
import java.security.*;
/**
* Fixes for the output of the default PRNG having low entropy.
* <p/>
* The fixes need to be applied via {@link #apply()} before any use of Java Cryptography
* Architecture primitives. A good place to invoke them is in the application's {@code onCreate}.
* <p/>
* copied from http://android-developers.blogspot.de/2013/08/some-securerandom-thoughts.html
* <p/>
* <p/>
* More information on these Android bugs:
* http://blog.k3170makan.com/2013/08/more-details-on-android-jca-prng-flaw.html
* Paper: "Randomly failed! Weaknesses in Java Pseudo Random Number Generators (PRNGs)"
* <p/>
* <p/>
* Sep 15, 2013:
* On some devices /dev/urandom is non-writable!
* No need to seed /dev/urandom. urandom should have enough seeds from the OS and kernel.
* Only OpenSSL seeds are broken. See http://emboss.github.io/blog/2013/08/21/openssl-prng-is-not-really-fork-safe
* <p/>
* see also:
* https://github.com/k9mail/k-9/commit/dda8f64276d4d29c43f86237cd77819c28f22f21
* In addition to a couple of custom ROMs linking /dev/urandom to a non-writable
* random version, now Samsung's SELinux policy also prevents apps from opening
* /dev/urandom for writing. Since we shouldn't need to write to /dev/urandom anyway
* we now simply don't.
* <p/>
* <p/>
* Sep 17, 2013:
* Updated from official blogpost:
* Update: the original code sample below crashed on a small fraction of Android
* devices due to /dev/urandom not being writable. We have now updated the code sample to handle this case gracefully.
*/
public final class PRNGFixes {
private static final int VERSION_CODE_JELLY_BEAN = 16;
private static final int VERSION_CODE_JELLY_BEAN_MR2 = 18;
private static final byte[] BUILD_FINGERPRINT_AND_DEVICE_SERIAL =
getBuildFingerprintAndDeviceSerial();
/**
* Hidden constructor to prevent instantiation.
*/
private PRNGFixes() {
}
/**
* Applies all fixes.
*
* @throws SecurityException if a fix is needed but could not be applied.
*/
public static void apply() {
applyOpenSSLFix();
installLinuxPRNGSecureRandom();
}
/**
* Applies the fix for OpenSSL PRNG having low entropy. Does nothing if the
* fix is not needed.
*
* @throws SecurityException if the fix is needed but could not be applied.
*/
private static void applyOpenSSLFix() throws SecurityException {
if ((Build.VERSION.SDK_INT < VERSION_CODE_JELLY_BEAN)
|| (Build.VERSION.SDK_INT > VERSION_CODE_JELLY_BEAN_MR2)) {
// No need to apply the fix
return;
}
try {
// Mix in the device- and invocation-specific seed.
Class.forName("org.apache.harmony.xnet.provider.jsse.NativeCrypto")
.getMethod("RAND_seed", byte[].class)
.invoke(null, generateSeed());
// Mix output of Linux PRNG into OpenSSL's PRNG
int bytesRead = (Integer) Class.forName(
"org.apache.harmony.xnet.provider.jsse.NativeCrypto")
.getMethod("RAND_load_file", String.class, long.class)
.invoke(null, "/dev/urandom", 1024);
if (bytesRead != 1024) {
throw new IOException(
"Unexpected number of bytes read from Linux PRNG: "
+ bytesRead);
}
} catch (Exception e) {
throw new SecurityException("Failed to seed OpenSSL PRNG", e);
}
}
/**
* Installs a Linux PRNG-backed {@code SecureRandom} implementation as the
* default. Does nothing if the implementation is already the default or if
* there is not need to install the implementation.
*
* @throws SecurityException if the fix is needed but could not be applied.
*/
private static void installLinuxPRNGSecureRandom()
throws SecurityException {
if (Build.VERSION.SDK_INT > VERSION_CODE_JELLY_BEAN_MR2) {
// No need to apply the fix
return;
}
// Install a Linux PRNG-based SecureRandom implementation as the
// default, if not yet installed.
Provider[] secureRandomProviders =
Security.getProviders("SecureRandom.SHA1PRNG");
if ((secureRandomProviders == null)
|| (secureRandomProviders.length < 1)
|| (!LinuxPRNGSecureRandomProvider.class.equals(
secureRandomProviders[0].getClass()))) {
Security.insertProviderAt(new LinuxPRNGSecureRandomProvider(), 1);
}
// Assert that new SecureRandom() and
// SecureRandom.getInstance("SHA1PRNG") return a SecureRandom backed
// by the Linux PRNG-based SecureRandom implementation.
SecureRandom rng1 = new SecureRandom();
if (!LinuxPRNGSecureRandomProvider.class.equals(
rng1.getProvider().getClass())) {
throw new SecurityException(
"new SecureRandom() backed by wrong Provider: "
+ rng1.getProvider().getClass());
}
SecureRandom rng2;
try {
rng2 = SecureRandom.getInstance("SHA1PRNG");
} catch (NoSuchAlgorithmException e) {
throw new SecurityException("SHA1PRNG not available", e);
}
if (!LinuxPRNGSecureRandomProvider.class.equals(
rng2.getProvider().getClass())) {
throw new SecurityException(
"SecureRandom.getInstance(\"SHA1PRNG\") backed by wrong"
+ " Provider: " + rng2.getProvider().getClass());
}
}
/**
* {@code Provider} of {@code SecureRandom} engines which pass through
* all requests to the Linux PRNG.
*/
private static class LinuxPRNGSecureRandomProvider extends Provider {
public LinuxPRNGSecureRandomProvider() {
super("LinuxPRNG",
1.0,
"A Linux-specific random number provider that uses"
+ " /dev/urandom");
// Although /dev/urandom is not a SHA-1 PRNG, some apps
// explicitly request a SHA1PRNG SecureRandom and we thus need to
// prevent them from getting the default implementation whose output
// may have low entropy.
put("SecureRandom.SHA1PRNG", LinuxPRNGSecureRandom.class.getName());
put("SecureRandom.SHA1PRNG ImplementedIn", "Software");
}
}
/**
* {@link SecureRandomSpi} which passes all requests to the Linux PRNG
* ({@code /dev/urandom}).
*/
public static class LinuxPRNGSecureRandom extends SecureRandomSpi {
/*
* IMPLEMENTATION NOTE: Requests to generate bytes and to mix in a seed
* are passed through to the Linux PRNG (/dev/urandom). Instances of
* this class seed themselves by mixing in the current time, PID, UID,
* build fingerprint, and hardware serial number (where available) into
* Linux PRNG.
*
* Concurrency: Read requests to the underlying Linux PRNG are
* serialized (on sLock) to ensure that multiple threads do not get
* duplicated PRNG output.
*/
private static final File URANDOM_FILE = new File("/dev/urandom");
private static final Object sLock = new Object();
/**
* Input stream for reading from Linux PRNG or {@code null} if not yet
* opened.
*
* @GuardedBy("sLock")
*/
private static DataInputStream sUrandomIn;
/**
* Output stream for writing to Linux PRNG or {@code null} if not yet
* opened.
*
* @GuardedBy("sLock")
*/
private static OutputStream sUrandomOut;
/**
* Whether this engine instance has been seeded. This is needed because
* each instance needs to seed itself if the client does not explicitly
* seed it.
*/
private boolean mSeeded;
@Override
protected void engineSetSeed(byte[] bytes) {
try {
OutputStream out;
synchronized (sLock) {
out = getUrandomOutputStream();
}
out.write(bytes);
out.flush();
} catch (IOException e) {
// On a small fraction of devices /dev/urandom is not writable.
// Log and ignore.
Log.w(PRNGFixes.class.getSimpleName(),
"Failed to mix seed into " + URANDOM_FILE);
} finally {
mSeeded = true;
}
}
@Override
protected void engineNextBytes(byte[] bytes) {
if (!mSeeded) {
// Mix in the device- and invocation-specific seed.
engineSetSeed(generateSeed());
}
try {
DataInputStream in;
synchronized (sLock) {
in = getUrandomInputStream();
}
synchronized (in) {
in.readFully(bytes);
}
} catch (IOException e) {
throw new SecurityException(
"Failed to read from " + URANDOM_FILE, e);
}
}
@Override
protected byte[] engineGenerateSeed(int size) {
byte[] seed = new byte[size];
engineNextBytes(seed);
return seed;
}
private DataInputStream getUrandomInputStream() {
synchronized (sLock) {
if (sUrandomIn == null) {
// NOTE: Consider inserting a BufferedInputStream between
// DataInputStream and FileInputStream if you need higher
// PRNG output performance and can live with future PRNG
// output being pulled into this process prematurely.
try {
sUrandomIn = new DataInputStream(
new FileInputStream(URANDOM_FILE));
} catch (IOException e) {
throw new SecurityException("Failed to open "
+ URANDOM_FILE + " for reading", e);
}
}
return sUrandomIn;
}
}
private OutputStream getUrandomOutputStream() throws IOException {
synchronized (sLock) {
if (sUrandomOut == null) {
sUrandomOut = new FileOutputStream(URANDOM_FILE);
}
return sUrandomOut;
}
}
}
/**
* Generates a device- and invocation-specific seed to be mixed into the
* Linux PRNG.
*/
private static byte[] generateSeed() {
try {
ByteArrayOutputStream seedBuffer = new ByteArrayOutputStream();
DataOutputStream seedBufferOut =
new DataOutputStream(seedBuffer);
seedBufferOut.writeLong(System.currentTimeMillis());
seedBufferOut.writeLong(System.nanoTime());
seedBufferOut.writeInt(Process.myPid());
seedBufferOut.writeInt(Process.myUid());
seedBufferOut.write(BUILD_FINGERPRINT_AND_DEVICE_SERIAL);
seedBufferOut.close();
return seedBuffer.toByteArray();
} catch (IOException e) {
throw new SecurityException("Failed to generate seed", e);
}
}
/**
* Gets the hardware serial number of this device.
*
* @return serial number or {@code null} if not available.
*/
private static String getDeviceSerialNumber() {
// We're using the Reflection API because Build.SERIAL is only available
// since API Level 9 (Gingerbread, Android 2.3).
try {
return (String) Build.class.getField("SERIAL").get(null);
} catch (Exception ignored) {
return null;
}
}
private static byte[] getBuildFingerprintAndDeviceSerial() {
StringBuilder result = new StringBuilder();
String fingerprint = Build.FINGERPRINT;
if (fingerprint != null) {
result.append(fingerprint);
}
String serial = getDeviceSerialNumber();
if (serial != null) {
result.append(serial);
}
try {
return result.toString().getBytes("UTF-8");
} catch (UnsupportedEncodingException e) {
throw new RuntimeException("UTF-8 encoding not supported");
}
}
}

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/*
* Copyright (C) 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.util;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.RejectedExecutionHandler;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.ReentrantLock;
/**
* Example from
* http://docs.oracle.com/javase/1.5.0/docs/api/java/util/concurrent/ThreadPoolExecutor.html
*/
public class PausableThreadPoolExecutor extends ThreadPoolExecutor {
public PausableThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime,
TimeUnit unit, BlockingQueue<Runnable> workQueue,
RejectedExecutionHandler handler) {
super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, handler);
}
public PausableThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime,
TimeUnit unit, BlockingQueue<Runnable> workQueue,
ThreadFactory threadFactory,
RejectedExecutionHandler handler) {
super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, threadFactory, handler);
}
public PausableThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime,
TimeUnit unit, BlockingQueue<Runnable> workQueue,
ThreadFactory threadFactory) {
super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, threadFactory);
}
public PausableThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime,
TimeUnit unit, BlockingQueue<Runnable> workQueue) {
super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue);
}
private boolean mIsPaused;
private ReentrantLock mPauseLock = new ReentrantLock();
private Condition mUnPaused = mPauseLock.newCondition();
protected void beforeExecute(Thread t, Runnable r) {
super.beforeExecute(t, r);
mPauseLock.lock();
try {
while (mIsPaused) {
mUnPaused.await();
}
} catch (InterruptedException ie) {
t.interrupt();
} finally {
mPauseLock.unlock();
}
}
public void pause() {
mPauseLock.lock();
try {
mIsPaused = true;
} finally {
mPauseLock.unlock();
}
}
public void resume() {
mPauseLock.lock();
try {
mIsPaused = false;
mUnPaused.signalAll();
} finally {
mPauseLock.unlock();
}
}
}

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/*
* Copyright (C) 2010-2014 Thialfihar <thi@thialfihar.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.sufficientlysecure.keychain.util;
import java.io.IOException;
import java.io.InputStream;
public class PositionAwareInputStream extends InputStream {
private InputStream mStream;
private long mPosition;
public PositionAwareInputStream(InputStream in) {
mStream = in;
mPosition = 0;
}
@Override
public int read() throws IOException {
int ch = mStream.read();
++mPosition;
return ch;
}
@Override
public int available() throws IOException {
return mStream.available();
}
@Override
public void close() throws IOException {
mStream.close();
}
@Override
public boolean markSupported() {
return false;
}
@Override
public int read(byte[] b) throws IOException {
int result = mStream.read(b);
mPosition += result;
return result;
}
@Override
public int read(byte[] b, int offset, int length) throws IOException {
int result = mStream.read(b, offset, length);
mPosition += result;
return result;
}
@Override
public synchronized void reset() throws IOException {
mStream.reset();
mPosition = 0;
}
@Override
public long skip(long n) throws IOException {
long result = mStream.skip(n);
mPosition += result;
return result;
}
public long position() {
return mPosition;
}
}

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/*
* Copyright (C) 2010 Thialfihar <thi@thialfihar.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.sufficientlysecure.keychain.util;
import java.math.BigInteger;
/**
* Primes for ElGamal
*/
public final class Primes {
// taken from http://www.ietf.org/rfc/rfc3526.txt
public static final String P1536 =
"FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1" +
"29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD" +
"EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245" +
"E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED" +
"EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D" +
"C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F" +
"83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D" +
"670C354E 4ABC9804 F1746C08 CA237327 FFFFFFFF FFFFFFFF";
public static final String P2048 =
"FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1" +
"29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD" +
"EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245" +
"E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED" +
"EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D" +
"C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F" +
"83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D" +
"670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B" +
"E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9" +
"DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510" +
"15728E5A 8AACAA68 FFFFFFFF FFFFFFFF";
public static final String P3072 =
"FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1" +
"29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD" +
"EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245" +
"E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED" +
"EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D" +
"C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F" +
"83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D" +
"670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B" +
"E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9" +
"DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510" +
"15728E5A 8AAAC42D AD33170D 04507A33 A85521AB DF1CBA64" +
"ECFB8504 58DBEF0A 8AEA7157 5D060C7D B3970F85 A6E1E4C7" +
"ABF5AE8C DB0933D7 1E8C94E0 4A25619D CEE3D226 1AD2EE6B" +
"F12FFA06 D98A0864 D8760273 3EC86A64 521F2B18 177B200C" +
"BBE11757 7A615D6C 770988C0 BAD946E2 08E24FA0 74E5AB31" +
"43DB5BFC E0FD108E 4B82D120 A93AD2CA FFFFFFFF FFFFFFFF";
public static final String P4096 =
"FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1" +
"29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD" +
"EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245" +
"E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED" +
"EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D" +
"C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F" +
"83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D" +
"670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B" +
"E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9" +
"DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510" +
"15728E5A 8AAAC42D AD33170D 04507A33 A85521AB DF1CBA64" +
"ECFB8504 58DBEF0A 8AEA7157 5D060C7D B3970F85 A6E1E4C7" +
"ABF5AE8C DB0933D7 1E8C94E0 4A25619D CEE3D226 1AD2EE6B" +
"F12FFA06 D98A0864 D8760273 3EC86A64 521F2B18 177B200C" +
"BBE11757 7A615D6C 770988C0 BAD946E2 08E24FA0 74E5AB31" +
"43DB5BFC E0FD108E 4B82D120 A9210801 1A723C12 A787E6D7" +
"88719A10 BDBA5B26 99C32718 6AF4E23C 1A946834 B6150BDA" +
"2583E9CA 2AD44CE8 DBBBC2DB 04DE8EF9 2E8EFC14 1FBECAA6" +
"287C5947 4E6BC05D 99B2964F A090C3A2 233BA186 515BE7ED" +
"1F612970 CEE2D7AF B81BDD76 2170481C D0069127 D5B05AA9" +
"93B4EA98 8D8FDDC1 86FFB7DC 90A6C08F 4DF435C9 34063199" +
"FFFFFFFF FFFFFFFF";
public static final String P6144 =
"FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1" +
"29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD" +
"EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245" +
"E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED" +
"EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D" +
"C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F" +
"83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D" +
"670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B" +
"E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9" +
"DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510" +
"15728E5A 8AAAC42D AD33170D 04507A33 A85521AB DF1CBA64" +
"ECFB8504 58DBEF0A 8AEA7157 5D060C7D B3970F85 A6E1E4C7" +
"ABF5AE8C DB0933D7 1E8C94E0 4A25619D CEE3D226 1AD2EE6B" +
"F12FFA06 D98A0864 D8760273 3EC86A64 521F2B18 177B200C" +
"BBE11757 7A615D6C 770988C0 BAD946E2 08E24FA0 74E5AB31" +
"43DB5BFC E0FD108E 4B82D120 A9210801 1A723C12 A787E6D7" +
"88719A10 BDBA5B26 99C32718 6AF4E23C 1A946834 B6150BDA" +
"2583E9CA 2AD44CE8 DBBBC2DB 04DE8EF9 2E8EFC14 1FBECAA6" +
"287C5947 4E6BC05D 99B2964F A090C3A2 233BA186 515BE7ED" +
"1F612970 CEE2D7AF B81BDD76 2170481C D0069127 D5B05AA9" +
"93B4EA98 8D8FDDC1 86FFB7DC 90A6C08F 4DF435C9 34028492" +
"36C3FAB4 D27C7026 C1D4DCB2 602646DE C9751E76 3DBA37BD" +
"F8FF9406 AD9E530E E5DB382F 413001AE B06A53ED 9027D831" +
"179727B0 865A8918 DA3EDBEB CF9B14ED 44CE6CBA CED4BB1B" +
"DB7F1447 E6CC254B 33205151 2BD7AF42 6FB8F401 378CD2BF" +
"5983CA01 C64B92EC F032EA15 D1721D03 F482D7CE 6E74FEF6" +
"D55E702F 46980C82 B5A84031 900B1C9E 59E7C97F BEC7E8F3" +
"23A97A7E 36CC88BE 0F1D45B7 FF585AC5 4BD407B2 2B4154AA" +
"CC8F6D7E BF48E1D8 14CC5ED2 0F8037E0 A79715EE F29BE328" +
"06A1D58B B7C5DA76 F550AA3D 8A1FBFF0 EB19CCB1 A313D55C" +
"DA56C9EC 2EF29632 387FE8D7 6E3C0468 043E8F66 3F4860EE" +
"12BF2D5B 0B7474D6 E694F91E 6DCC4024 FFFFFFFF FFFFFFFF";
public static final String P8192 =
"FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1" +
"29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD" +
"EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245" +
"E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED" +
"EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D" +
"C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F" +
"83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D" +
"670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B" +
"E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9" +
"DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510" +
"15728E5A 8AAAC42D AD33170D 04507A33 A85521AB DF1CBA64" +
"ECFB8504 58DBEF0A 8AEA7157 5D060C7D B3970F85 A6E1E4C7" +
"ABF5AE8C DB0933D7 1E8C94E0 4A25619D CEE3D226 1AD2EE6B" +
"F12FFA06 D98A0864 D8760273 3EC86A64 521F2B18 177B200C" +
"BBE11757 7A615D6C 770988C0 BAD946E2 08E24FA0 74E5AB31" +
"43DB5BFC E0FD108E 4B82D120 A9210801 1A723C12 A787E6D7" +
"88719A10 BDBA5B26 99C32718 6AF4E23C 1A946834 B6150BDA" +
"2583E9CA 2AD44CE8 DBBBC2DB 04DE8EF9 2E8EFC14 1FBECAA6" +
"287C5947 4E6BC05D 99B2964F A090C3A2 233BA186 515BE7ED" +
"1F612970 CEE2D7AF B81BDD76 2170481C D0069127 D5B05AA9" +
"93B4EA98 8D8FDDC1 86FFB7DC 90A6C08F 4DF435C9 34028492" +
"36C3FAB4 D27C7026 C1D4DCB2 602646DE C9751E76 3DBA37BD" +
"F8FF9406 AD9E530E E5DB382F 413001AE B06A53ED 9027D831" +
"179727B0 865A8918 DA3EDBEB CF9B14ED 44CE6CBA CED4BB1B" +
"DB7F1447 E6CC254B 33205151 2BD7AF42 6FB8F401 378CD2BF" +
"5983CA01 C64B92EC F032EA15 D1721D03 F482D7CE 6E74FEF6" +
"D55E702F 46980C82 B5A84031 900B1C9E 59E7C97F BEC7E8F3" +
"23A97A7E 36CC88BE 0F1D45B7 FF585AC5 4BD407B2 2B4154AA" +
"CC8F6D7E BF48E1D8 14CC5ED2 0F8037E0 A79715EE F29BE328" +
"06A1D58B B7C5DA76 F550AA3D 8A1FBFF0 EB19CCB1 A313D55C" +
"DA56C9EC 2EF29632 387FE8D7 6E3C0468 043E8F66 3F4860EE" +
"12BF2D5B 0B7474D6 E694F91E 6DBE1159 74A3926F 12FEE5E4" +
"38777CB6 A932DF8C D8BEC4D0 73B931BA 3BC832B6 8D9DD300" +
"741FA7BF 8AFC47ED 2576F693 6BA42466 3AAB639C 5AE4F568" +
"3423B474 2BF1C978 238F16CB E39D652D E3FDB8BE FC848AD9" +
"22222E04 A4037C07 13EB57A8 1A23F0C7 3473FC64 6CEA306B" +
"4BCBC886 2F8385DD FA9D4B7F A2C087E8 79683303 ED5BDD3A" +
"062B3CF5 B3A278A6 6D2A13F8 3F44F82D DF310EE0 74AB6A36" +
"4597E899 A0255DC1 64F31CC5 0846851D F9AB4819 5DED7EA1" +
"B1D510BD 7EE74D73 FAF36BC3 1ECFA268 359046F4 EB879F92" +
"4009438B 481C6CD7 889A002E D5EE382B C9190DA6 FC026E47" +
"9558E447 5677E9AA 9E3050E2 765694DF C81F56E8 80B96E71" +
"60C980DD 98EDD3DF FFFFFFFF FFFFFFFF";
public static BigInteger getBestPrime(int keySize) {
String primeString;
if (keySize >= (8192 + 6144) / 2) {
primeString = P8192;
} else if (keySize >= (6144 + 4096) / 2) {
primeString = P6144;
} else if (keySize >= (4096 + 3072) / 2) {
primeString = P4096;
} else if (keySize >= (3072 + 2048) / 2) {
primeString = P3072;
} else if (keySize >= (2048 + 1536) / 2) {
primeString = P2048;
} else {
primeString = P1536;
}
return new BigInteger(primeString.replaceAll(" ", ""), 16);
}
}

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@@ -0,0 +1,25 @@
/*
* Copyright (C) 2010 Thialfihar <thi@thialfihar.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.sufficientlysecure.keychain.util;
public interface ProgressDialogUpdater {
void setProgress(String message, int current, int total);
void setProgress(int resourceId, int current, int total);
void setProgress(int current, int total);
}

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@@ -0,0 +1,50 @@
/*
* Copyright (C) 2012-2014 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.util;
/** This is a simple class that wraps a ProgressDialogUpdater, scaling the progress
* values into a specified range.
*/
public class ProgressScaler implements ProgressDialogUpdater {
final ProgressDialogUpdater mWrapped;
final int mFrom, mTo, mMax;
public ProgressScaler(ProgressDialogUpdater wrapped, int from, int to, int max) {
this.mWrapped = wrapped;
this.mFrom = from;
this.mTo = to;
this.mMax = max;
}
/**
* Set progressDialogUpdater of ProgressDialog by sending message to handler on UI thread
*/
public void setProgress(String message, int progress, int max) {
mWrapped.setProgress(message, mFrom + progress * (mTo - mFrom) / max, mMax);
}
public void setProgress(int resourceId, int progress, int max) {
mWrapped.setProgress(resourceId, progress, mMax);
}
public void setProgress(int progress, int max) {
mWrapped.setProgress(progress, max);
}
}

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/*
* Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
* Copyright (C) 2011 Andreas Schildbach
*
* 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.util;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.WriterException;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.QRCodeWriter;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
import android.graphics.Bitmap;
import android.graphics.Color;
import org.sufficientlysecure.keychain.Constants;
import java.util.Hashtable;
public class QrCodeUtils {
public static final QRCodeWriter QR_CODE_WRITER = new QRCodeWriter();
/**
* Generate Bitmap with QR Code based on input.
*
* @param input
* @param size
* @return QR Code as Bitmap
*/
public static Bitmap getQRCodeBitmap(final String input, final int size) {
try {
final Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
final BitMatrix result = QR_CODE_WRITER.encode(input, BarcodeFormat.QR_CODE, size,
size, hints);
final int width = result.getWidth();
final int height = result.getHeight();
final int[] pixels = new int[width * height];
for (int y = 0; y < height; y++) {
final int offset = y * width;
for (int x = 0; x < width; x++) {
pixels[offset + x] = result.get(x, y) ? Color.BLACK : Color.TRANSPARENT;
}
}
final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
return bitmap;
} catch (final WriterException e) {
Log.e(Constants.TAG, "QrCodeUtils", e);
return null;
}
}
}