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WIP: clean up signal protocol

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This commit is contained in:
Ryan ZHAO 2021-02-19 16:06:10 +11:00
parent 8cc78e8f4c
commit b34809f4d5
20 changed files with 93 additions and 462 deletions
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87
app/src/main/java/org/thoughtcrime/securesms/crypto/UnidentifiedAccessUtil.java
View File

@ -7,90 +7,57 @@ import androidx.annotation.Nullable;
import androidx.annotation.WorkerThread;
import org.session.libsignal.metadata.SignalProtos;
import org.session.libsignal.metadata.certificate.CertificateValidator;
import org.session.libsignal.metadata.certificate.InvalidCertificateException;
import org.session.libsignal.utilities.logging.Log;
import org.session.libsession.messaging.threads.recipients.Recipient;
import org.session.libsession.utilities.TextSecurePreferences;
import org.session.libsession.utilities.Util;
import org.session.libsignal.libsignal.util.guava.Optional;
import org.session.libsignal.service.api.crypto.UnidentifiedAccess;
import org.session.libsignal.service.api.crypto.UnidentifiedAccessPair;
import org.session.libsignal.service.api.push.SignalServiceAddress;
public class UnidentifiedAccessUtil {
private static final String TAG = UnidentifiedAccessUtil.class.getSimpleName();
public static CertificateValidator getCertificateValidator() {
return new CertificateValidator();
}
@WorkerThread
public static Optional<UnidentifiedAccessPair> getAccessFor(@NonNull Context context,
public static Optional<UnidentifiedAccess> getAccessFor(@NonNull Context context,
@NonNull Recipient recipient)
{
if (!TextSecurePreferences.isUnidentifiedDeliveryEnabled(context)) {
Log.i(TAG, "Unidentified delivery is disabled. [other]");
return Optional.absent();
byte[] theirUnidentifiedAccessKey = getTargetUnidentifiedAccessKey(recipient);
byte[] ourUnidentifiedAccessKey = getSelfUnidentifiedAccessKey(context);
byte[] ourUnidentifiedAccessCertificate = getUnidentifiedAccessCertificate(context);
if (TextSecurePreferences.isUniversalUnidentifiedAccess(context)) {
ourUnidentifiedAccessKey = Util.getSecretBytes(16);
}
try {
byte[] theirUnidentifiedAccessKey = getTargetUnidentifiedAccessKey(recipient);
byte[] ourUnidentifiedAccessKey = getSelfUnidentifiedAccessKey(context);
byte[] ourUnidentifiedAccessCertificate = getUnidentifiedAccessCertificate(context);
Log.i(TAG, "Their access key present? " + (theirUnidentifiedAccessKey != null) +
" | Our access key present? " + (ourUnidentifiedAccessKey != null) +
" | Our certificate present? " + (ourUnidentifiedAccessCertificate != null));
if (TextSecurePreferences.isUniversalUnidentifiedAccess(context)) {
ourUnidentifiedAccessKey = Util.getSecretBytes(16);
}
Log.i(TAG, "Their access key present? " + (theirUnidentifiedAccessKey != null) +
" | Our access key present? " + (ourUnidentifiedAccessKey != null) +
" | Our certificate present? " + (ourUnidentifiedAccessCertificate != null));
if (theirUnidentifiedAccessKey != null &&
ourUnidentifiedAccessKey != null &&
ourUnidentifiedAccessCertificate != null)
{
return Optional.of(new UnidentifiedAccessPair(new UnidentifiedAccess(theirUnidentifiedAccessKey,
ourUnidentifiedAccessCertificate),
new UnidentifiedAccess(ourUnidentifiedAccessKey,
ourUnidentifiedAccessCertificate)));
}
return Optional.absent();
} catch (InvalidCertificateException e) {
Log.w(TAG, e);
return Optional.absent();
if (theirUnidentifiedAccessKey != null &&
ourUnidentifiedAccessKey != null &&
ourUnidentifiedAccessCertificate != null)
{
return Optional.of(new UnidentifiedAccess(theirUnidentifiedAccessKey));
}
return Optional.absent();
}
public static Optional<UnidentifiedAccessPair> getAccessForSync(@NonNull Context context) {
if (!TextSecurePreferences.isUnidentifiedDeliveryEnabled(context)) {
Log.i(TAG, "Unidentified delivery is disabled. [self]");
return Optional.absent();
public static Optional<UnidentifiedAccess> getAccessForSync(@NonNull Context context) {
byte[] ourUnidentifiedAccessKey = getSelfUnidentifiedAccessKey(context);
byte[] ourUnidentifiedAccessCertificate = getUnidentifiedAccessCertificate(context);
if (TextSecurePreferences.isUniversalUnidentifiedAccess(context)) {
ourUnidentifiedAccessKey = Util.getSecretBytes(16);
}
try {
byte[] ourUnidentifiedAccessKey = getSelfUnidentifiedAccessKey(context);
byte[] ourUnidentifiedAccessCertificate = getUnidentifiedAccessCertificate(context);
if (TextSecurePreferences.isUniversalUnidentifiedAccess(context)) {
ourUnidentifiedAccessKey = Util.getSecretBytes(16);
}
if (ourUnidentifiedAccessKey != null && ourUnidentifiedAccessCertificate != null) {
return Optional.of(new UnidentifiedAccessPair(new UnidentifiedAccess(ourUnidentifiedAccessKey,
ourUnidentifiedAccessCertificate),
new UnidentifiedAccess(ourUnidentifiedAccessKey,
ourUnidentifiedAccessCertificate)));
}
return Optional.absent();
} catch (InvalidCertificateException e) {
Log.w(TAG, e);
return Optional.absent();
if (ourUnidentifiedAccessKey != null && ourUnidentifiedAccessCertificate != null) {
return Optional.of(new UnidentifiedAccess(ourUnidentifiedAccessKey));
}
return Optional.absent();
}
public static @NonNull byte[] getSelfUnidentifiedAccessKey(@NonNull Context context) {

4
app/src/main/java/org/thoughtcrime/securesms/jobs/PushGroupSendJob.java
View File

@ -16,6 +16,7 @@ import org.session.libsession.messaging.threads.Address;
import org.session.libsession.utilities.GroupUtil;
import org.session.libsession.utilities.TextSecurePreferences;
import org.session.libsignal.service.api.crypto.UnidentifiedAccess;
import org.session.libsignal.service.internal.push.SignalServiceProtos;
import org.thoughtcrime.securesms.ApplicationContext;
import org.thoughtcrime.securesms.crypto.UnidentifiedAccessUtil;
@ -37,7 +38,6 @@ import org.thoughtcrime.securesms.transport.RetryLaterException;
import org.thoughtcrime.securesms.transport.UndeliverableMessageException;
import org.session.libsignal.libsignal.util.guava.Optional;
import org.session.libsignal.service.api.SignalServiceMessageSender;
import org.session.libsignal.service.api.crypto.UnidentifiedAccessPair;
import org.session.libsignal.service.api.crypto.UntrustedIdentityException;
import org.session.libsignal.service.api.messages.SendMessageResult;
import org.session.libsignal.service.api.messages.SignalServiceAttachment;
@ -236,7 +236,7 @@ public class PushGroupSendJob extends PushSendJob implements InjectableType {
Address address = message.getRecipient().getAddress();
List<SignalServiceAddress> addresses = Stream.of(destinations).map(this::getPushAddress).toList();
List<Optional<UnidentifiedAccessPair>> unidentifiedAccess = Stream.of(addresses)
List<Optional<UnidentifiedAccess>> unidentifiedAccess = Stream.of(addresses)
.map(a -> Address.fromSerialized(a.getNumber()))
.map(a -> Recipient.from(context, a, false))
.map(recipient -> UnidentifiedAccessUtil.getAccessFor(context, recipient))

36
app/src/main/java/org/thoughtcrime/securesms/jobs/PushMediaSendJob.java
View File

@ -13,6 +13,7 @@ import org.session.libsession.messaging.sending_receiving.attachments.DatabaseAt
import org.session.libsession.messaging.threads.recipients.Recipient.UnidentifiedAccessMode;
import org.session.libsession.utilities.TextSecurePreferences;
import org.session.libsignal.service.api.crypto.UnidentifiedAccess;
import org.thoughtcrime.securesms.ApplicationContext;
import org.thoughtcrime.securesms.crypto.UnidentifiedAccessUtil;
import org.thoughtcrime.securesms.database.DatabaseFactory;
@ -33,7 +34,6 @@ import org.thoughtcrime.securesms.transport.RetryLaterException;
import org.thoughtcrime.securesms.transport.UndeliverableMessageException;
import org.session.libsignal.libsignal.util.guava.Optional;
import org.session.libsignal.service.api.SignalServiceMessageSender;
import org.session.libsignal.service.api.crypto.UnidentifiedAccessPair;
import org.session.libsignal.service.api.crypto.UntrustedIdentityException;
import org.session.libsignal.service.api.messages.SendMessageResult;
import org.session.libsignal.service.api.messages.SignalServiceAttachment;
@ -181,17 +181,15 @@ public class PushMediaSendJob extends PushSendJob implements InjectableType {
DatabaseFactory.getMmsSmsDatabase(context).incrementReadReceiptCount(id, System.currentTimeMillis());
}
if (TextSecurePreferences.isUnidentifiedDeliveryEnabled(context)) {
if (unidentified && accessMode == UnidentifiedAccessMode.UNKNOWN && profileKey == null) {
log(TAG, "Marking recipient as UD-unrestricted following a UD send.");
DatabaseFactory.getRecipientDatabase(context).setUnidentifiedAccessMode(recipient, UnidentifiedAccessMode.UNRESTRICTED);
} else if (unidentified && accessMode == UnidentifiedAccessMode.UNKNOWN) {
log(TAG, "Marking recipient as UD-enabled following a UD send.");
DatabaseFactory.getRecipientDatabase(context).setUnidentifiedAccessMode(recipient, UnidentifiedAccessMode.ENABLED);
} else if (!unidentified && accessMode != UnidentifiedAccessMode.DISABLED) {
log(TAG, "Marking recipient as UD-disabled following a non-UD send.");
DatabaseFactory.getRecipientDatabase(context).setUnidentifiedAccessMode(recipient, UnidentifiedAccessMode.DISABLED);
}
if (unidentified && accessMode == UnidentifiedAccessMode.UNKNOWN && profileKey == null) {
log(TAG, "Marking recipient as UD-unrestricted following a UD send.");
DatabaseFactory.getRecipientDatabase(context).setUnidentifiedAccessMode(recipient, UnidentifiedAccessMode.UNRESTRICTED);
} else if (unidentified && accessMode == UnidentifiedAccessMode.UNKNOWN) {
log(TAG, "Marking recipient as UD-enabled following a UD send.");
DatabaseFactory.getRecipientDatabase(context).setUnidentifiedAccessMode(recipient, UnidentifiedAccessMode.ENABLED);
} else if (!unidentified && accessMode != UnidentifiedAccessMode.DISABLED) {
log(TAG, "Marking recipient as UD-disabled following a non-UD send.");
DatabaseFactory.getRecipientDatabase(context).setUnidentifiedAccessMode(recipient, UnidentifiedAccessMode.DISABLED);
}
if (messageId > 0 && message.getExpiresIn() > 0 && !message.isExpirationUpdate()) {
@ -207,12 +205,6 @@ public class PushMediaSendJob extends PushSendJob implements InjectableType {
database.markAsPendingInsecureSmsFallback(messageId);
notifyMediaMessageDeliveryFailed(context, messageId);
}
} catch (UntrustedIdentityException uie) {
warn(TAG, "Failure", uie);
if (messageId >= 0) {
database.addMismatchedIdentity(messageId, Address.fromSerialized(uie.getE164Number()), uie.getIdentityKey());
database.markAsSentFailed(messageId);
}
} catch (SnodeAPI.Error e) {
Log.d("Loki", "Couldn't send message due to error: " + e.getDescription());
if (messageId >= 0) {
@ -238,8 +230,7 @@ public class PushMediaSendJob extends PushSendJob implements InjectableType {
}
private boolean deliver(OutgoingMediaMessage message)
throws RetryLaterException, InsecureFallbackApprovalException, UntrustedIdentityException,
UndeliverableMessageException, SnodeAPI.Error
throws RetryLaterException, InsecureFallbackApprovalException, UndeliverableMessageException, SnodeAPI.Error
{
try {
Recipient recipient = Recipient.from(context, destination, false);
@ -250,11 +241,10 @@ public class PushMediaSendJob extends PushSendJob implements InjectableType {
List<SignalServiceAttachment> serviceAttachments = getAttachmentPointersFor(attachments);
Optional<byte[]> profileKey = getProfileKey(message.getRecipient());
Optional<SignalServiceDataMessage.Quote> quote = getQuoteFor(message);
Optional<SignalServiceDataMessage.Sticker> sticker = getStickerFor(message);
List<SharedContact> sharedContacts = getSharedContactsFor(message);
List<Preview> previews = getPreviewsFor(message);
Optional<UnidentifiedAccessPair> unidentifiedAccessPair = UnidentifiedAccessUtil.getAccessFor(context, recipient);
Optional<UnidentifiedAccess> unidentifiedAccessPair = UnidentifiedAccessUtil.getAccessFor(context, recipient);
SignalServiceDataMessage mediaMessage = SignalServiceDataMessage.newBuilder()
.withBody(message.getBody())
@ -298,7 +288,7 @@ public class PushMediaSendJob extends PushSendJob implements InjectableType {
try {
// send to ourselves to sync multi-device
Optional<UnidentifiedAccessPair> syncAccess = UnidentifiedAccessUtil.getAccessForSync(context);
Optional<UnidentifiedAccess> syncAccess = UnidentifiedAccessUtil.getAccessForSync(context);
SendMessageResult selfSendResult = messageSender.sendMessage(messageId, localAddress, syncAccess, mediaSelfSendMessage);
if (selfSendResult.getLokiAPIError() != null) {
throw selfSendResult.getLokiAPIError();

30
app/src/main/java/org/thoughtcrime/securesms/jobs/PushTextSendJob.java
View File

@ -26,7 +26,6 @@ import org.thoughtcrime.securesms.transport.InsecureFallbackApprovalException;
import org.thoughtcrime.securesms.transport.RetryLaterException;
import org.session.libsignal.libsignal.util.guava.Optional;
import org.session.libsignal.service.api.SignalServiceMessageSender;
import org.session.libsignal.service.api.crypto.UnidentifiedAccessPair;
import org.session.libsignal.service.api.crypto.UntrustedIdentityException;
import org.session.libsignal.service.api.messages.SendMessageResult;
import org.session.libsignal.service.api.messages.SignalServiceDataMessage;
@ -124,17 +123,15 @@ public class PushTextSendJob extends PushSendJob implements InjectableType {
DatabaseFactory.getMmsSmsDatabase(context).incrementReadReceiptCount(id, System.currentTimeMillis());
}
if (TextSecurePreferences.isUnidentifiedDeliveryEnabled(context)) {
if (unidentified && accessMode == UnidentifiedAccessMode.UNKNOWN && profileKey == null) {
log(TAG, "Marking recipient as UD-unrestricted following a UD send.");
DatabaseFactory.getRecipientDatabase(context).setUnidentifiedAccessMode(recipient, UnidentifiedAccessMode.UNRESTRICTED);
} else if (unidentified && accessMode == UnidentifiedAccessMode.UNKNOWN) {
log(TAG, "Marking recipient as UD-enabled following a UD send.");
DatabaseFactory.getRecipientDatabase(context).setUnidentifiedAccessMode(recipient, UnidentifiedAccessMode.ENABLED);
} else if (!unidentified && accessMode != UnidentifiedAccessMode.DISABLED) {
log(TAG, "Marking recipient as UD-disabled following a non-UD send.");
DatabaseFactory.getRecipientDatabase(context).setUnidentifiedAccessMode(recipient, UnidentifiedAccessMode.DISABLED);
}
if (unidentified && accessMode == UnidentifiedAccessMode.UNKNOWN && profileKey == null) {
log(TAG, "Marking recipient as UD-unrestricted following a UD send.");
DatabaseFactory.getRecipientDatabase(context).setUnidentifiedAccessMode(recipient, UnidentifiedAccessMode.UNRESTRICTED);
} else if (unidentified && accessMode == UnidentifiedAccessMode.UNKNOWN) {
log(TAG, "Marking recipient as UD-enabled following a UD send.");
DatabaseFactory.getRecipientDatabase(context).setUnidentifiedAccessMode(recipient, UnidentifiedAccessMode.ENABLED);
} else if (!unidentified && accessMode != UnidentifiedAccessMode.DISABLED) {
log(TAG, "Marking recipient as UD-disabled following a non-UD send.");
DatabaseFactory.getRecipientDatabase(context).setUnidentifiedAccessMode(recipient, UnidentifiedAccessMode.DISABLED);
}
if (record.getExpiresIn() > 0 && messageId >= 0) {
@ -196,15 +193,10 @@ public class PushTextSendJob extends PushSendJob implements InjectableType {
SignalServiceAddress address = getPushAddress(recipient.getAddress());
SignalServiceAddress localAddress = new SignalServiceAddress(userPublicKey);
Optional<byte[]> profileKey = getProfileKey(recipient);
Optional<UnidentifiedAccessPair> unidentifiedAccess = UnidentifiedAccessUtil.getAccessFor(context, recipient);
Optional<UnidentifiedAccess> unidentifiedAccess = UnidentifiedAccessUtil.getAccessFor(context, recipient);
log(TAG, "Have access key to use: " + unidentifiedAccess.isPresent());
// PreKeyBundle preKeyBundle = null;
// if (message.isEndSession()) {
// preKeyBundle = DatabaseFactory.getLokiPreKeyBundleDatabase(context).generatePreKeyBundle(destination.serialize());
// }
SignalServiceDataMessage textSecureMessage = SignalServiceDataMessage.newBuilder()
.withTimestamp(message.getDateSent())
.withBody(message.getBody())
@ -237,7 +229,7 @@ public class PushTextSendJob extends PushSendJob implements InjectableType {
try {
// send to ourselves to sync multi-device
Optional<UnidentifiedAccessPair> syncAccess = UnidentifiedAccessUtil.getAccessForSync(context);
Optional<UnidentifiedAccess> syncAccess = UnidentifiedAccessUtil.getAccessForSync(context);
SendMessageResult selfSendResult = messageSender.sendMessage(messageId, localAddress, syncAccess, textSecureSelfSendMessage);
if (selfSendResult.getLokiAPIError() != null) {
throw selfSendResult.getLokiAPIError();

7
app/src/main/java/org/thoughtcrime/securesms/jobs/TypingSendJob.java
View File

@ -5,20 +5,19 @@ import androidx.annotation.NonNull;
import com.annimon.stream.Stream;
import org.session.libsession.messaging.jobs.Data;
import org.session.libsignal.libsignal.util.guava.Optional;
import org.session.libsignal.service.api.crypto.UnidentifiedAccess;
import org.thoughtcrime.securesms.crypto.UnidentifiedAccessUtil;
import org.thoughtcrime.securesms.database.DatabaseFactory;
import org.thoughtcrime.securesms.dependencies.InjectableType;
import org.thoughtcrime.securesms.jobmanager.Job;
import org.session.libsignal.utilities.logging.Log;
import org.session.libsignal.libsignal.util.guava.Optional;
import org.session.libsignal.service.api.SignalServiceMessageSender;
import org.session.libsignal.service.api.crypto.UnidentifiedAccessPair;
import org.session.libsignal.service.api.messages.SignalServiceTypingMessage;
import org.session.libsignal.service.api.messages.SignalServiceTypingMessage.Action;
import org.session.libsignal.service.api.push.SignalServiceAddress;
import org.session.libsession.messaging.threads.recipients.Recipient;
import org.session.libsession.utilities.GroupUtil;
import org.session.libsession.utilities.TextSecurePreferences;
import java.util.Collections;
@ -93,7 +92,7 @@ public class TypingSendJob extends BaseJob implements InjectableType {
}
List<SignalServiceAddress> addresses = Stream.of(recipients).map(r -> new SignalServiceAddress(r.getAddress().serialize())).toList();
List<Optional<UnidentifiedAccessPair>> unidentifiedAccess = Stream.of(recipients).map(r -> UnidentifiedAccessUtil.getAccessFor(context, r)).toList();
List<Optional<UnidentifiedAccess>> unidentifiedAccess = Stream.of(recipients).map(r -> UnidentifiedAccessUtil.getAccessFor(context, r)).toList();
SignalServiceTypingMessage typingMessage = new SignalServiceTypingMessage(typing ? Action.STARTED : Action.STOPPED, System.currentTimeMillis());
messageSender.sendTyping(addresses, unidentifiedAccess, typingMessage);

2
app/src/main/java/org/thoughtcrime/securesms/loki/protocol/ClosedGroupUpdateMessageSendJobV2.kt
View File

@ -223,7 +223,7 @@ class ClosedGroupUpdateMessageSendJobV2 private constructor(parameters: Paramete
}
try {
// isClosedGroup can always be false as it's only used in the context of legacy closed groups
messageSender.sendMessage(0, address, udAccess.get().targetUnidentifiedAccess,
messageSender.sendMessage(0, address, udAccess,
sentTime, serializedContentMessage, false, ttl,
true, false, false, Optional.absent())
} catch (e: Exception) {

4
app/src/main/java/org/thoughtcrime/securesms/loki/protocol/MultiDeviceProtocol.kt
View File

@ -34,7 +34,7 @@ object MultiDeviceProtocol {
val recipient = recipient(context, userPublicKey)
val udAccess = UnidentifiedAccessUtil.getAccessFor(context, recipient)
try {
messageSender.sendMessage(0, address, udAccess.get().targetUnidentifiedAccess,
messageSender.sendMessage(0, address, udAccess,
Date().time, serializedMessage, false, configurationMessage.ttl.toInt(),
true, false, true, Optional.absent())
TextSecurePreferences.setLastConfigurationSyncTime(context, now)
@ -53,7 +53,7 @@ object MultiDeviceProtocol {
val recipient = recipient(context, userPublicKey)
val udAccess = UnidentifiedAccessUtil.getAccessFor(context, recipient)
try {
messageSender.sendMessage(0, address, udAccess.get().targetUnidentifiedAccess,
messageSender.sendMessage(0, address, udAccess,
Date().time, serializedMessage, false, configurationMessage.ttl.toInt(),
true, false, true, Optional.absent())
} catch (e: Exception) {

45
libsession/src/main/java/org/session/libsession/messaging/utilities/UnidentifiedAccessUtil.kt
View File

@ -1,39 +1,42 @@
package org.session.libsession.messaging.utilities
import android.content.Context
import com.goterl.lazycode.lazysodium.LazySodiumAndroid
import com.goterl.lazycode.lazysodium.SodiumAndroid
import org.session.libsession.messaging.MessagingConfiguration
import org.session.libsignal.utilities.logging.Log
import org.session.libsession.utilities.TextSecurePreferences.isUniversalUnidentifiedAccess
import org.session.libsession.utilities.Util.getSecretBytes
import org.session.libsignal.metadata.SignalProtos
import org.session.libsignal.metadata.certificate.InvalidCertificateException
import org.session.libsignal.service.api.crypto.UnidentifiedAccess
import org.session.libsignal.service.api.crypto.UnidentifiedAccessPair
import org.session.libsignal.utilities.logging.Log
object UnidentifiedAccessUtil {
private val TAG = UnidentifiedAccessUtil::class.simpleName
private val sodium by lazy { LazySodiumAndroid(SodiumAndroid()) }
fun getAccessFor(recipientPublicKey: String): UnidentifiedAccessPair? {
try {
val theirUnidentifiedAccessKey = getTargetUnidentifiedAccessKey(recipientPublicKey)
val ourUnidentifiedAccessKey = getSelfUnidentifiedAccessKey()
val ourUnidentifiedAccessCertificate = getUnidentifiedAccessCertificate()
fun getAccessFor(recipientPublicKey: String): UnidentifiedAccess? {
val theirUnidentifiedAccessKey = getTargetUnidentifiedAccessKey(recipientPublicKey)
val ourUnidentifiedAccessKey = getSelfUnidentifiedAccessKey()
val ourUnidentifiedAccessCertificate = getUnidentifiedAccessCertificate()
Log.i(TAG, "Their access key present? " + (theirUnidentifiedAccessKey != null) +
" | Our access key present? " + (ourUnidentifiedAccessKey != null) +
" | Our certificate present? " + (ourUnidentifiedAccessCertificate != null))
Log.i(TAG, "Their access key present? " + (theirUnidentifiedAccessKey != null) +
" | Our access key present? " + (ourUnidentifiedAccessKey != null) +
" | Our certificate present? " + (ourUnidentifiedAccessCertificate != null))
if (theirUnidentifiedAccessKey != null && ourUnidentifiedAccessKey != null && ourUnidentifiedAccessCertificate != null) {
return UnidentifiedAccessPair(UnidentifiedAccess(theirUnidentifiedAccessKey, ourUnidentifiedAccessCertificate),
UnidentifiedAccess(ourUnidentifiedAccessKey, ourUnidentifiedAccessCertificate))
}
return null
} catch (e: InvalidCertificateException) {
Log.w(TAG, e)
return null
return if (theirUnidentifiedAccessKey != null && ourUnidentifiedAccessKey != null && ourUnidentifiedAccessCertificate != null) {
UnidentifiedAccess(theirUnidentifiedAccessKey)
} else null
}
fun getAccessForSync(context: Context): UnidentifiedAccess? {
var ourUnidentifiedAccessKey = getSelfUnidentifiedAccessKey()
val ourUnidentifiedAccessCertificate = getUnidentifiedAccessCertificate()
if (isUniversalUnidentifiedAccess(context)) {
ourUnidentifiedAccessKey = getSecretBytes(16)
}
return if (ourUnidentifiedAccessKey != null && ourUnidentifiedAccessCertificate != null) {
UnidentifiedAccess(ourUnidentifiedAccessKey)
} else null
}
private fun getTargetUnidentifiedAccessKey(recipientPublicKey: String): ByteArray? {

7
libsession/src/main/java/org/session/libsession/utilities/TextSecurePreferences.kt
View File

@ -448,13 +448,6 @@ object TextSecurePreferences {
return getBooleanPreference(context, UNIVERSAL_UNIDENTIFIED_ACCESS, false)
}
@JvmStatic
fun isUnidentifiedDeliveryEnabled(context: Context): Boolean {
// Loki - Always enable unidentified sender
return true
// return getBooleanPreference(context, UNIDENTIFIED_DELIVERY_ENABLED, true);
}
@JvmStatic
fun getUpdateApkRefreshTime(context: Context): Long {
return getLongPreference(context, UPDATE_APK_REFRESH_TIME_PREF, 0L)

50
libsignal/src/main/java/org/session/libsignal/libsignal/kdf/DerivedMessageSecrets.java
View File

@ -1,50 +0,0 @@
/**
* Copyright (C) 2014-2016 Open Whisper Systems
*
* Licensed according to the LICENSE file in this repository.
*/
package org.session.libsignal.libsignal.kdf;
import org.session.libsignal.libsignal.util.ByteUtil;
import java.text.ParseException;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
public class DerivedMessageSecrets {
public static final int SIZE = 80;
private static final int CIPHER_KEY_LENGTH = 32;
private static final int MAC_KEY_LENGTH = 32;
private static final int IV_LENGTH = 16;
private final SecretKeySpec cipherKey;
private final SecretKeySpec macKey;
private final IvParameterSpec iv;
public DerivedMessageSecrets(byte[] okm) {
try {
byte[][] keys = ByteUtil.split(okm, CIPHER_KEY_LENGTH, MAC_KEY_LENGTH, IV_LENGTH);
this.cipherKey = new SecretKeySpec(keys[0], "AES");
this.macKey = new SecretKeySpec(keys[1], "HmacSHA256");
this.iv = new IvParameterSpec(keys[2]);
} catch (ParseException e) {
throw new AssertionError(e);
}
}
public SecretKeySpec getCipherKey() {
return cipherKey;
}
public SecretKeySpec getMacKey() {
return macKey;
}
public IvParameterSpec getIv() {
return iv;
}
}

31
libsignal/src/main/java/org/session/libsignal/libsignal/kdf/DerivedRootSecrets.java
View File

@ -1,31 +0,0 @@
/**
* Copyright (C) 2014-2016 Open Whisper Systems
*
* Licensed according to the LICENSE file in this repository.
*/
package org.session.libsignal.libsignal.kdf;
import org.session.libsignal.libsignal.util.ByteUtil;
public class DerivedRootSecrets {
public static final int SIZE = 64;
private final byte[] rootKey;
private final byte[] chainKey;
public DerivedRootSecrets(byte[] okm) {
byte[][] keys = ByteUtil.split(okm, 32, 32);
this.rootKey = keys[0];
this.chainKey = keys[1];
}
public byte[] getRootKey() {
return rootKey;
}
public byte[] getChainKey() {
return chainKey;
}
}

4
libsignal/src/main/java/org/session/libsignal/libsignal/kdf/HKDF.java
View File

@ -6,9 +6,6 @@
package org.session.libsignal.libsignal.kdf;
import org.session.libsignal.libsignal.kdf.HKDFv2;
import org.session.libsignal.libsignal.kdf.HKDFv3;
import java.io.ByteArrayOutputStream;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
@ -22,7 +19,6 @@ public abstract class HKDF {
public static HKDF createFor(int messageVersion) {
switch (messageVersion) {
case 2: return new HKDFv2();
case 3: return new HKDFv3();
default: throw new AssertionError("Unknown version: " + messageVersion);
}

13
libsignal/src/main/java/org/session/libsignal/libsignal/kdf/HKDFv2.java
View File

@ -1,13 +0,0 @@
/**
* Copyright (C) 2014-2016 Open Whisper Systems
*
* Licensed according to the LICENSE file in this repository.
*/
package org.session.libsignal.libsignal.kdf;
public class HKDFv2 extends HKDF {
@Override
protected int getIterationStartOffset() {
return 0;
}
}

24
libsignal/src/main/java/org/session/libsignal/metadata/certificate/CertificateValidator.java
View File

@ -1,24 +0,0 @@
package org.session.libsignal.metadata.certificate;
import java.util.HashSet;
import java.util.Set;
public class CertificateValidator {
@SuppressWarnings("MismatchedQueryAndUpdateOfCollection")
private static final Set<Integer> REVOKED = new HashSet<Integer>() {{
}};
public void validate(SenderCertificate certificate, long validationTime) throws InvalidCertificateException {
if (certificate.getSender() == null || certificate.getSenderDeviceId() <= 0) {
throw new InvalidCertificateException("Sender or sender device id is invalid");
}
}
// VisibleForTesting
void validate(ServerCertificate certificate) throws InvalidCertificateException {
}
}

12
libsignal/src/main/java/org/session/libsignal/metadata/certificate/InvalidCertificateException.java
View File

@ -1,12 +0,0 @@
package org.session.libsignal.metadata.certificate;
public class InvalidCertificateException extends Exception {
public InvalidCertificateException(String s) {
super(s);
}
public InvalidCertificateException(Exception e) {
super(e);
}
}

51
libsignal/src/main/java/org/session/libsignal/metadata/certificate/SenderCertificate.java
View File

@ -1,51 +0,0 @@
package org.session.libsignal.metadata.certificate;
import com.google.protobuf.InvalidProtocolBufferException;
import org.session.libsignal.metadata.SignalProtos;
public class SenderCertificate {
private final int senderDeviceId;
private final String sender;
private final byte[] serialized;
private final byte[] certificate;
public SenderCertificate(byte[] serialized) throws InvalidCertificateException {
try {
SignalProtos.SenderCertificate certificate = SignalProtos.SenderCertificate.parseFrom(serialized);
if (!certificate.hasSenderDevice() || !certificate.hasSender()) {
throw new InvalidCertificateException("Missing fields");
}
this.sender = certificate.getSender();
this.senderDeviceId = certificate.getSenderDevice();
this.serialized = serialized;
this.certificate = certificate.toByteArray();
} catch (InvalidProtocolBufferException e) {
throw new InvalidCertificateException(e);
}
}
public int getSenderDeviceId() {
return senderDeviceId;
}
public String getSender() {
return sender;
}
public byte[] getSerialized() {
return serialized;
}
public byte[] getCertificate() {
return certificate;
}
}

66
libsignal/src/main/java/org/session/libsignal/metadata/certificate/ServerCertificate.java
View File

@ -1,66 +0,0 @@
package org.session.libsignal.metadata.certificate;
import com.google.protobuf.InvalidProtocolBufferException;
import org.session.libsignal.metadata.SignalProtos;
import org.session.libsignal.libsignal.InvalidKeyException;
import org.session.libsignal.libsignal.ecc.Curve;
import org.session.libsignal.libsignal.ecc.ECPublicKey;
public class ServerCertificate {
private final int keyId;
private final ECPublicKey key;
private final byte[] serialized;
private final byte[] certificate;
private final byte[] signature;
public ServerCertificate(byte[] serialized) throws InvalidCertificateException {
try {
SignalProtos.ServerCertificate wrapper = SignalProtos.ServerCertificate.parseFrom(serialized);
if (!wrapper.hasCertificate() || !wrapper.hasSignature()) {
throw new InvalidCertificateException("Missing fields");
}
SignalProtos.ServerCertificate.Certificate certificate = SignalProtos.ServerCertificate.Certificate.parseFrom(wrapper.getCertificate());
if (!certificate.hasId() || !certificate.hasKey()) {
throw new InvalidCertificateException("Missing fields");
}
this.keyId = certificate.getId();
this.key = Curve.decodePoint(certificate.getKey().toByteArray(), 0);
this.serialized = serialized;
this.certificate = wrapper.getCertificate().toByteArray();
this.signature = wrapper.getSignature().toByteArray();
} catch (InvalidProtocolBufferException e) {
throw new InvalidCertificateException(e);
} catch (InvalidKeyException e) {
throw new InvalidCertificateException(e);
}
}
public int getKeyId() {
return keyId;
}
public ECPublicKey getKey() {
return key;
}
public byte[] getSerialized() {
return serialized;
}
public byte[] getCertificate() {
return certificate;
}
public byte[] getSignature() {
return signature;
}
}

36
libsignal/src/main/java/org/session/libsignal/service/api/SignalServiceMessageSender.java
View File

@ -14,7 +14,6 @@ import org.session.libsignal.utilities.logging.Log;
import org.session.libsignal.libsignal.util.guava.Optional;
import org.session.libsignal.service.api.crypto.AttachmentCipherOutputStream;
import org.session.libsignal.service.api.crypto.UnidentifiedAccess;
import org.session.libsignal.service.api.crypto.UnidentifiedAccessPair;
import org.session.libsignal.service.api.crypto.UntrustedIdentityException;
import org.session.libsignal.service.api.messages.SendMessageResult;
import org.session.libsignal.service.api.messages.SignalServiceAttachment;
@ -165,21 +164,21 @@ public class SignalServiceMessageSender {
* @throws IOException
*/
public void sendReceipt(SignalServiceAddress recipient,
Optional<UnidentifiedAccessPair> unidentifiedAccess,
Optional<UnidentifiedAccess> unidentifiedAccess,
SignalServiceReceiptMessage message)
throws IOException {
byte[] content = createReceiptContent(message);
boolean useFallbackEncryption = true;
sendMessage(recipient, getTargetUnidentifiedAccess(unidentifiedAccess), message.getWhen(), content, false, message.getTTL(), useFallbackEncryption);
sendMessage(recipient, unidentifiedAccess, message.getWhen(), content, false, message.getTTL(), useFallbackEncryption);
}
public void sendTyping(List<SignalServiceAddress> recipients,
List<Optional<UnidentifiedAccessPair>> unidentifiedAccess,
List<Optional<UnidentifiedAccess>> unidentifiedAccess,
SignalServiceTypingMessage message)
throws IOException
{
byte[] content = createTypingContent(message);
sendMessage(0, recipients, getTargetUnidentifiedAccess(unidentifiedAccess), message.getTimestamp(), content, true, message.getTTL(), false, false);
sendMessage(0, recipients, unidentifiedAccess, message.getTimestamp(), content, true, message.getTTL(), false, false);
}
/**
@ -191,14 +190,14 @@ public class SignalServiceMessageSender {
*/
public SendMessageResult sendMessage(long messageID,
SignalServiceAddress recipient,
Optional<UnidentifiedAccessPair> unidentifiedAccess,
Optional<UnidentifiedAccess> unidentifiedAccess,
SignalServiceDataMessage message)
throws IOException
{
byte[] content = createMessageContent(message, recipient);
long timestamp = message.getTimestamp();
boolean isClosedGroup = message.group.isPresent() && message.group.get().getGroupType() == SignalServiceGroup.GroupType.SIGNAL;
SendMessageResult result = sendMessage(messageID, recipient, getTargetUnidentifiedAccess(unidentifiedAccess), timestamp, content, false, message.getTTL(), true, isClosedGroup, message.hasVisibleContent(), message.getSyncTarget());
SendMessageResult result = sendMessage(messageID, recipient, unidentifiedAccess, timestamp, content, false, message.getTTL(), true, isClosedGroup, message.hasVisibleContent(), message.getSyncTarget());
return result;
}
@ -212,7 +211,7 @@ public class SignalServiceMessageSender {
*/
public List<SendMessageResult> sendMessage(long messageID,
List<SignalServiceAddress> recipients,
List<Optional<UnidentifiedAccessPair>> unidentifiedAccess,
List<Optional<UnidentifiedAccess>> unidentifiedAccess,
SignalServiceDataMessage message)
throws IOException {
// Loki - We only need the first recipient in the line below. This is because the recipient is only used to determine
@ -221,7 +220,7 @@ public class SignalServiceMessageSender {
long timestamp = message.getTimestamp();
boolean isClosedGroup = message.group.isPresent() && message.group.get().getGroupType() == SignalServiceGroup.GroupType.SIGNAL;
return sendMessage(messageID, recipients, getTargetUnidentifiedAccess(unidentifiedAccess), timestamp, content, false, message.getTTL(), isClosedGroup, message.hasVisibleContent());
return sendMessage(messageID, recipients, unidentifiedAccess, timestamp, content, false, message.getTTL(), isClosedGroup, message.hasVisibleContent());
}
public void setMessagePipe(SignalServiceMessagePipe pipe, SignalServiceMessagePipe unidentifiedPipe) {
@ -885,25 +884,6 @@ public class SignalServiceMessageSender {
return new OutgoingPushMessageList(publicKey, timestamp, messages, false);
}
private Optional<UnidentifiedAccess> getTargetUnidentifiedAccess(Optional<UnidentifiedAccessPair> unidentifiedAccess) {
if (unidentifiedAccess.isPresent()) {
return unidentifiedAccess.get().getTargetUnidentifiedAccess();
}
return Optional.absent();
}
private List<Optional<UnidentifiedAccess>> getTargetUnidentifiedAccess(List<Optional<UnidentifiedAccessPair>> unidentifiedAccess) {
List<Optional<UnidentifiedAccess>> results = new LinkedList<>();
for (Optional<UnidentifiedAccessPair> item : unidentifiedAccess) {
if (item.isPresent()) results.add(item.get().getTargetUnidentifiedAccess());
else results.add(Optional.<UnidentifiedAccess>absent());
}
return results;
}
public static interface EventListener {
public void onSecurityEvent(SignalServiceAddress address);

23
libsignal/src/main/java/org/session/libsignal/service/api/crypto/UnidentifiedAccess.java
View File

@ -1,8 +1,6 @@
package org.session.libsignal.service.api.crypto;
import org.session.libsignal.metadata.certificate.InvalidCertificateException;
import org.session.libsignal.metadata.certificate.SenderCertificate;
import org.session.libsignal.libsignal.util.ByteUtil;
import java.security.InvalidAlgorithmParameterException;
@ -19,23 +17,16 @@ import javax.crypto.spec.SecretKeySpec;
public class UnidentifiedAccess {
private final byte[] unidentifiedAccessKey;
private final SenderCertificate unidentifiedCertificate;
public UnidentifiedAccess(byte[] unidentifiedAccessKey, byte[] unidentifiedCertificate)
throws InvalidCertificateException
public UnidentifiedAccess(byte[] unidentifiedAccessKey)
{
this.unidentifiedAccessKey = unidentifiedAccessKey;
this.unidentifiedCertificate = new SenderCertificate(unidentifiedCertificate);
}
public byte[] getUnidentifiedAccessKey() {
return unidentifiedAccessKey;
}
public SenderCertificate getUnidentifiedCertificate() {
return unidentifiedCertificate;
}
public static byte[] deriveAccessKeyFrom(byte[] profileKey) {
try {
byte[] nonce = new byte[12];
@ -47,17 +38,7 @@ public class UnidentifiedAccess {
byte[] ciphertext = cipher.doFinal(input);
return ByteUtil.trim(ciphertext, 16);
} catch (NoSuchAlgorithmException e) {
throw new AssertionError(e);
} catch (InvalidKeyException e) {
throw new AssertionError(e);
} catch (NoSuchPaddingException e) {
throw new AssertionError(e);
} catch (InvalidAlgorithmParameterException e) {
throw new AssertionError(e);
} catch (BadPaddingException e) {
throw new AssertionError(e);
} catch (IllegalBlockSizeException e) {
} catch (NoSuchAlgorithmException | InvalidKeyException | NoSuchPaddingException | InvalidAlgorithmParameterException | BadPaddingException | IllegalBlockSizeException e) {
throw new AssertionError(e);
}
}

23
libsignal/src/main/java/org/session/libsignal/service/api/crypto/UnidentifiedAccessPair.java
View File

@ -1,23 +0,0 @@
package org.session.libsignal.service.api.crypto;
import org.session.libsignal.libsignal.util.guava.Optional;
public class UnidentifiedAccessPair {
private final Optional<UnidentifiedAccess> targetUnidentifiedAccess;
private final Optional<UnidentifiedAccess> selfUnidentifiedAccess;
public UnidentifiedAccessPair(UnidentifiedAccess targetUnidentifiedAccess, UnidentifiedAccess selfUnidentifiedAccess) {
this.targetUnidentifiedAccess = Optional.of(targetUnidentifiedAccess);
this.selfUnidentifiedAccess = Optional.of(selfUnidentifiedAccess);
}
public Optional<UnidentifiedAccess> getTargetUnidentifiedAccess() {
return targetUnidentifiedAccess;
}
public Optional<UnidentifiedAccess> getSelfUnidentifiedAccess() {
return selfUnidentifiedAccess;
}
}