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Replace AndroidPinning submodule by checked in code

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This commit is contained in:
Daniel Martí 2015-03-31 19:30:30 +02:00
parent be2cb0cc43
commit 89673dfd2d
12 changed files with 1365 additions and 5 deletions
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4
.gitmodules vendored
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@ -6,10 +6,6 @@
path = extern/MemorizingTrustManager path = extern/MemorizingTrustManager
url = https://github.com/ge0rg/MemorizingTrustManager.git url = https://github.com/ge0rg/MemorizingTrustManager.git
ignore = dirty ignore = dirty
[submodule "extern/AndroidPinning"]
path = extern/AndroidPinning
url = https://gitlab.com/fdroid/androidpinning.git
ignore = dirty
[submodule "extern/libsuperuser"] [submodule "extern/libsuperuser"]
path = extern/libsuperuser path = extern/libsuperuser
url = https://github.com/Chainfire/libsuperuser url = https://github.com/Chainfire/libsuperuser

1
extern/AndroidPinning vendored

@ -1 +0,0 @@
Subproject commit d8c0143e18ab3abb693300fe4dfbcd05907f7536

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extern/AndroidPinning/AndroidManifest.xml vendored Normal file
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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="org.thoughtcrime.ssl.pinning"
android:versionCode="1"
android:versionName="1.0.0">
<uses-sdk android:minSdkVersion="5" android:targetSdkVersion="17"/>
</manifest>

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extern/AndroidPinning/LICENSE vendored Normal file
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@ -0,0 +1,621 @@
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buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath 'com.android.tools.build:gradle:1.0.0'
}
}
apply plugin: 'android-library'
android {
compileSdkVersion 17
buildToolsVersion '17.0.0'
android {
sourceSets {
main {
manifest.srcFile 'AndroidManifest.xml'
java.srcDirs = ['src']
resources.srcDirs = ['src']
aidl.srcDirs = ['src']
renderscript.srcDirs = ['src']
res.srcDirs = ['res']
assets.srcDirs = ['assets']
}
}
}
}

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@ -0,0 +1,2 @@
target=android-17
android.library=true

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/**
* Copyright (C) 2011-2013 Moxie Marlinspike
*
* 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.thoughtcrime.ssl.pinning;
import java.security.GeneralSecurityException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.LinkedList;
/**
* Does the work of cleaning up a certificate chain by sifting out any
* unrelated certificates and returning something that's signed from
* EE to a trust anchor.
*
* @author Moxie Marlinspike
*/
class CertificateChainCleaner {
private CertificateChainCleaner() {}
public static X509Certificate[] getCleanChain(X509Certificate[] chain,
SystemKeyStore systemKeyStore)
throws CertificateException
{
final LinkedList<X509Certificate> cleanChain = new LinkedList<X509Certificate>();
boolean trustedChain = false;
int i;
if (systemKeyStore.isTrustRoot(chain[0])) {
trustedChain = true;
}
cleanChain.add(chain[0]);
for (i = 1; i < chain.length; i++) {
if (systemKeyStore.isTrustRoot(chain[i])) {
trustedChain = true;
}
if (isValidLink(chain[i], chain[i - 1])) {
cleanChain.add(chain[i]);
} else {
break;
}
}
final X509Certificate trustRoot = systemKeyStore.getTrustRootFor(chain[i - 1]);
if (trustRoot != null) {
cleanChain.add(trustRoot);
trustedChain = true;
}
if (trustedChain) {
return cleanChain.toArray(new X509Certificate[cleanChain.size()]);
} else {
throw new CertificateException("Didn't find a trust anchor in chain cleanup!");
}
}
private static boolean isValidLink(X509Certificate parent, X509Certificate child) {
if (!parent.getSubjectX500Principal().equals(child.getIssuerX500Principal())) {
return false;
}
try {
child.verify(parent.getPublicKey());
} catch (GeneralSecurityException gse) {
return false;
}
return true;
}
}

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/**
* Copyright (C) 2011-2013 Moxie Marlinspike
*
* 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.thoughtcrime.ssl.pinning;
import android.content.Context;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.conn.ssl.X509HostnameVerifier;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.TrustManager;
import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.security.KeyManagementException;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.UnrecoverableKeyException;
/**
* A standard Apache SSL Socket Factory that uses an pinning trust manager.
* <p>
* To use:
* <pre>
*
* String[] pins = new String[] {"40c5401d6f8cbaf08b00edefb1ee87d005b3b9cd"};
* SchemeRegistry schemeRegistry = new SchemeRegistry();
* schemeRegistry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
* schemeRegistry.register(new Scheme("https", new PinningSSLSocketFactory(getContext(),pins, 0), 443));
*
* HttpParams httpParams = new BasicHttpParams();
* ClientConnectionManager connectionManager = new ThreadSafeClientConnManager(httpParams, schemeRegistry);
* DefaultHttpClient httpClient = new DefaultHttpClient(connectionManager, httpParams);
*
* HttpResponse response = httpClient.execute(new HttpGet("https://www.google.com/"));
*
* </pre>
* </p>
*
* @author Moxie Marlinspike
*/
public class PinningSSLSocketFactory extends SSLSocketFactory {
private final javax.net.ssl.SSLSocketFactory pinningSocketFactory;
/**
* Constructs a PinningSSLSocketFactory with a set of valid pins.
*
* @param pins An array of encoded pins to match a seen certificate
* chain against. A pin is a hex-encoded hash of a X.509 certificate's
* SubjectPublicKeyInfo. A pin can be generated using the provided pin.py
* script: python ./tools/pin.py certificate_file.pem
*
* @param enforceUntilTimestampMillis A timestamp (in milliseconds) when pins will stop being
* enforced. Normal non-pinned certificate validation
* will continue. Set this to some period after your build
* date, or to 0 to enforce pins forever.
*/
public PinningSSLSocketFactory(Context context, String[] pins, long enforceUntilTimestampMillis)
throws UnrecoverableKeyException, KeyManagementException,
NoSuchAlgorithmException, KeyStoreException
{
super(null);
final SystemKeyStore keyStore = SystemKeyStore.getInstance(context);
final SSLContext pinningSslContext = SSLContext.getInstance(TLS);
final TrustManager[] pinningTrustManagers = initializePinningTrustManagers(keyStore, pins, enforceUntilTimestampMillis);
pinningSslContext.init(null, pinningTrustManagers, null);
this.pinningSocketFactory = pinningSslContext.getSocketFactory();
}
@Override
public Socket createSocket() throws IOException {
return pinningSocketFactory.createSocket();
}
@Override
public Socket connectSocket(final Socket sock, final String host, final int port,
final InetAddress localAddress, int localPort,
final HttpParams params) throws IOException {
final SSLSocket sslSock = (SSLSocket) ((sock != null) ? sock : createSocket());
if ((localAddress != null) || (localPort > 0)) {
if (localPort < 0) {
localPort = 0;
}
sslSock.bind(new InetSocketAddress(localAddress, localPort));
}
final int connTimeout = HttpConnectionParams.getConnectionTimeout(params);
final int soTimeout = HttpConnectionParams.getSoTimeout(params);
final InetSocketAddress remoteAddress = new InetSocketAddress(host, port);
sslSock.connect(remoteAddress, connTimeout);
sslSock.setSoTimeout(soTimeout);
try {
SSLSocketFactory.STRICT_HOSTNAME_VERIFIER.verify(host, sslSock);
} catch (IOException iox) {
try {
sslSock.close();
} catch (Exception ignored) {
}
throw iox;
}
return sslSock;
}
@Override
public Socket createSocket(final Socket socket, final String host,
int port, final boolean autoClose)
throws IOException
{
if (port == -1) {
port = 443;
}
final SSLSocket sslSocket = (SSLSocket) pinningSocketFactory.createSocket(socket, host, port, autoClose);
SSLSocketFactory.STRICT_HOSTNAME_VERIFIER.verify(host, sslSocket);
return sslSocket;
}
@Override
public void setHostnameVerifier(X509HostnameVerifier hostnameVerifier) {
throw new IllegalArgumentException("Only strict hostname verification (default) " +
"is supported!");
}
@Override
public X509HostnameVerifier getHostnameVerifier() {
return SSLSocketFactory.STRICT_HOSTNAME_VERIFIER;
}
private TrustManager[] initializePinningTrustManagers(SystemKeyStore keyStore,
String[] pins,
long enforceUntilTimestampMillis)
{
final TrustManager[] trustManagers = new TrustManager[1];
trustManagers[0] = new PinningTrustManager(keyStore, pins, enforceUntilTimestampMillis);
return trustManagers;
}
}

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/**
* Copyright (C) 2011-2013 Moxie Marlinspike
*
* 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.thoughtcrime.ssl.pinning;
import android.util.Log;
import java.security.KeyStoreException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;
import javax.net.ssl.TrustManager;
import javax.net.ssl.TrustManagerFactory;
import javax.net.ssl.X509TrustManager;
/**
* A TrustManager implementation that enforces Certificate "pins."
*
* <p>
* PinningTrustManager is layered on top of the system's default TrustManager,
* such that the system continues to validate CA signatures for SSL connections
* as usual. Additionally, however, PinningTrustManager will enforce certificate
* constraints on the validated certificate chain. Specifically, it
* will ensure that one of an arbitrary number of specified SubjectPublicKeyInfos
* appears somewhere in the valid certificate chain.
* </p>
* <p>
* To use:
* <pre>
* TrustManager[] trustManagers = new TrustManager[1];
* trustManagers[0] = new PinningTrustManager(SystemKeyStore.getInstance(),
* new String[] {"f30012bbc18c231ac1a44b788e410ce754182513"},
* 0);
*
* SSLContext sslContext = SSLContext.getInstance("TLS");
* sslContext.init(null, trustManagers, null);
*
* HttpsURLConnection urlConnection = (HttpsURLConnection)new URL("https://encrypted.google.com/").openConnection();
* urlConnection.setSSLSocketFactory(sslContext.getSocketFactory());
* InputStream in = urlConnection.getInputStream();
* </pre>
* </p>
*
* @author Moxie Marlinspike
*/
public class PinningTrustManager implements X509TrustManager {
private final TrustManager[] systemTrustManagers;
private final SystemKeyStore systemKeyStore;
private final long enforceUntilTimestampMillis;
private final List<byte[]> pins = new LinkedList<byte[]>();
private final Set<X509Certificate> cache = Collections.synchronizedSet(new HashSet<X509Certificate>());
/**
* Constructs a PinningTrustManager with a set of valid pins.
*
* @param keyStore A SystemKeyStore that validation will be based on.
*
* @param pins An array of encoded pins to match a seen certificate
* chain against. A pin is a hex-encoded hash of a X.509 certificate's
* SubjectPublicKeyInfo. A pin can be generated using the provided pin.py
* script: python ./tools/pin.py certificate_file.pem
*
* @param enforceUntilTimestampMillis A timestamp (in milliseconds) when pins will stop being
* enforced. Normal non-pinned certificate validation
* will continue. Set this to some period after your build
* date, or to 0 to enforce pins forever.
*/
public PinningTrustManager(SystemKeyStore keyStore, String[] pins, long enforceUntilTimestampMillis) {
this.systemTrustManagers = initializeSystemTrustManagers(keyStore);
this.systemKeyStore = keyStore;
this.enforceUntilTimestampMillis = enforceUntilTimestampMillis;
for (String pin : pins) {
this.pins.add(hexStringToByteArray(pin));
}
}
private TrustManager[] initializeSystemTrustManagers(SystemKeyStore keyStore) {
try {
final TrustManagerFactory tmf = TrustManagerFactory.getInstance("X509");
tmf.init(keyStore.trustStore);
return tmf.getTrustManagers();
} catch (NoSuchAlgorithmException nsae) {
throw new AssertionError(nsae);
} catch (KeyStoreException e) {
throw new AssertionError(e);
}
}
private boolean isValidPin(X509Certificate certificate) throws CertificateException {
try {
final MessageDigest digest = MessageDigest.getInstance("SHA1");
final byte[] spki = certificate.getPublicKey().getEncoded();
final byte[] pin = digest.digest(spki);
for (byte[] validPin : this.pins) {
if (Arrays.equals(validPin, pin)) {
return true;
}
}
return false;
} catch (NoSuchAlgorithmException nsae) {
throw new CertificateException(nsae);
}
}
private void checkSystemTrust(X509Certificate[] chain, String authType)
throws CertificateException {
for (TrustManager systemTrustManager : systemTrustManagers) {
((X509TrustManager) systemTrustManager).checkServerTrusted(chain, authType);
}
}
private void checkPinTrust(X509Certificate[] chain)
throws CertificateException {
if (enforceUntilTimestampMillis != 0 &&
System.currentTimeMillis() > enforceUntilTimestampMillis)
{
Log.w("PinningTrustManager", "Certificate pins are stale, falling back to system trust.");
return;
}
final X509Certificate[] cleanChain = CertificateChainCleaner.getCleanChain(chain, systemKeyStore);
for (X509Certificate certificate : cleanChain) {
if (isValidPin(certificate)) {
return;
}
}
throw new CertificateException("No valid pins found in chain!");
}
public void checkClientTrusted(X509Certificate[] chain, String authType)
throws CertificateException {
throw new CertificateException("Client certificates not supported!");
}
public void checkServerTrusted(X509Certificate[] chain, String authType)
throws CertificateException
{
if (cache.contains(chain[0])) {
return;
}
// Note: We do this so that we'll never be doing worse than the default
// system validation. It's duplicate work, however, and can be factored
// out if we make the verification below more complete.
checkSystemTrust(chain, authType);
checkPinTrust(chain);
cache.add(chain[0]);
}
public X509Certificate[] getAcceptedIssuers() {
return null;
}
private byte[] hexStringToByteArray(String s) {
final int len = s.length();
final byte[] data = new byte[len / 2];
for (int i = 0; i < len; i += 2) {
data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4) +
Character.digit(s.charAt(i + 1), 16));
}
return data;
}
public void clearCache() {
cache.clear();
}
}

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/**
* Copyright (C) 2011-2013 Moxie Marlinspike
*
* 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.thoughtcrime.ssl.pinning;
import android.content.Context;
import android.content.res.Resources.NotFoundException;
import android.util.Log;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.security.GeneralSecurityException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.Principal;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.Enumeration;
import java.util.HashMap;
/**
* An interface to the system's trust anchors. We're using our
* own truststore, which is just the AOSP default, but in a place
* we know to find it for sure.
*
* @author Moxie Marlinspike
*/
public class SystemKeyStore {
private static final int CACERTS_FILE_SIZE = 1024 * 140;
private static SystemKeyStore instance;
public static synchronized SystemKeyStore getInstance(Context context) {
if (instance == null) {
instance = new SystemKeyStore(context);
}
return instance;
}
private final HashMap<Principal, X509Certificate> trustRoots;
final KeyStore trustStore;
private SystemKeyStore(Context context) {
final KeyStore trustStore = getTrustStore(context);
this.trustRoots = initializeTrustedRoots(trustStore);
this.trustStore = trustStore;
}
public boolean isTrustRoot(X509Certificate certificate) {
final X509Certificate trustRoot = trustRoots.get(certificate.getSubjectX500Principal());
return trustRoot != null && trustRoot.getPublicKey().equals(certificate.getPublicKey());
}
public X509Certificate getTrustRootFor(X509Certificate certificate) {
final X509Certificate trustRoot = trustRoots.get(certificate.getIssuerX500Principal());
if (trustRoot == null) {
return null;
}
if (trustRoot.getSubjectX500Principal().equals(certificate.getSubjectX500Principal())) {
return null;
}
try {
certificate.verify(trustRoot.getPublicKey());
} catch (GeneralSecurityException e) {
return null;
}
return trustRoot;
}
private HashMap<Principal, X509Certificate> initializeTrustedRoots(KeyStore trustStore) {
try {
final HashMap<Principal, X509Certificate> trusted =
new HashMap<Principal, X509Certificate>();
for (Enumeration<String> aliases = trustStore.aliases(); aliases.hasMoreElements(); ) {
final String alias = aliases.nextElement();
final X509Certificate cert = (X509Certificate) trustStore.getCertificate(alias);
if (cert != null) {
trusted.put(cert.getSubjectX500Principal(), cert);
}
}
return trusted;
} catch (KeyStoreException e) {
throw new AssertionError(e);
}
}
private KeyStore getTrustStore(Context context) {
try {
final KeyStore trustStore = KeyStore.getInstance("BKS");
final BufferedInputStream bin =
new BufferedInputStream(context.getResources().openRawResource(R.raw.cacerts),
CACERTS_FILE_SIZE);
try {
trustStore.load(bin, "changeit".toCharArray());
} finally {
try {
bin.close();
} catch (IOException ioe) {
Log.w("SystemKeyStore", ioe);
}
}
return trustStore;
} catch (KeyStoreException kse) {
throw new AssertionError(kse);
} catch (NoSuchAlgorithmException e) {
throw new AssertionError(e);
} catch (CertificateException e) {
throw new AssertionError(e);
} catch (NotFoundException e) {
throw new AssertionError(e);
} catch (IOException e) {
throw new AssertionError(e);
}
}
}

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/**
* Copyright (C) 2011-2013 Moxie Marlinspike
*
* 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.thoughtcrime.ssl.pinning.util;
import android.content.Context;
import org.apache.http.client.HttpClient;
import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.scheme.PlainSocketFactory;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpParams;
import org.thoughtcrime.ssl.pinning.PinningSSLSocketFactory;
import org.thoughtcrime.ssl.pinning.PinningTrustManager;
import org.thoughtcrime.ssl.pinning.SystemKeyStore;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import java.io.IOException;
import java.net.URL;
import java.security.KeyManagementException;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.UnrecoverableKeyException;
public class PinningHelper {
/**
* Constructs an HttpClient that will validate SSL connections with a PinningTrustManager.
*
* @param pins An array of encoded pins to match a seen certificate
* chain against. A pin is a hex-encoded hash of a X.509 certificate's
* SubjectPublicKeyInfo. A pin can be generated using the provided pin.py
* script: python ./tools/pin.py certificate_file.pem
*/
public static HttpClient getPinnedHttpClient(Context context, String[] pins) {
try {
SchemeRegistry schemeRegistry = new SchemeRegistry();
schemeRegistry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
schemeRegistry.register(new Scheme("https", new PinningSSLSocketFactory(context, pins, 0), 443));
HttpParams httpParams = new BasicHttpParams();
ClientConnectionManager connectionManager = new ThreadSafeClientConnManager(httpParams, schemeRegistry);
return new DefaultHttpClient(connectionManager, httpParams);
} catch (UnrecoverableKeyException e) {
throw new AssertionError(e);
} catch (KeyManagementException e) {
throw new AssertionError(e);
} catch (NoSuchAlgorithmException e) {
throw new AssertionError(e);
} catch (KeyStoreException e) {
throw new AssertionError(e);
}
}
/**
* Constructs an HttpsURLConnection that will validate HTTPS connections against a set of
* specified pins.
*
* @param pins An array of encoded pins to match a seen certificate
* chain against. A pin is a hex-encoded hash of a X.509 certificate's
* SubjectPublicKeyInfo. A pin can be generated using the provided pin.py
* script: python ./tools/pin.py certificate_file.pem
*
*/
public static HttpsURLConnection getPinnedHttpsURLConnection(Context context, String[] pins, URL url)
throws IOException
{
try {
if (!url.getProtocol().equals("https")) {
throw new IllegalArgumentException("Attempt to construct pinned non-https connection!");
}
TrustManager[] trustManagers = new TrustManager[1];
trustManagers[0] = new PinningTrustManager(SystemKeyStore.getInstance(context), pins, 0);
SSLContext sslContext = SSLContext.getInstance("TLS");
sslContext.init(null, trustManagers, null);
HttpsURLConnection urlConnection = (HttpsURLConnection)url.openConnection();
urlConnection.setSSLSocketFactory(sslContext.getSocketFactory());
return urlConnection;
} catch (NoSuchAlgorithmException nsae) {
throw new AssertionError(nsae);
} catch (KeyManagementException e) {
throw new AssertionError(e);
}
}
}