Examples with GroupSecretParams org.signal.zkgroup.groups.GroupSecretParams used on opensource projects

Example 1 with GroupSecretParams

use of org.signal.zkgroup.groups.GroupSecretParams in project Signal-Android by WhisperSystems.

the class AvatarGroupsV2DownloadJob method downloadGroupAvatarBytes.

@Nullable
public static byte[] downloadGroupAvatarBytes(@NonNull Context context, @NonNull GroupMasterKey groupMasterKey, @NonNull String cdnKey) throws IOException {
    if (cdnKey.length() == 0) {
        return null;
    }
    GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
    File attachment = File.createTempFile("avatar", "gv2", context.getCacheDir());
    attachment.deleteOnExit();
    SignalServiceMessageReceiver receiver = ApplicationDependencies.getSignalServiceMessageReceiver();
    byte[] encryptedData;
    try (FileInputStream inputStream = receiver.retrieveGroupsV2ProfileAvatar(cdnKey, attachment, AVATAR_DOWNLOAD_FAIL_SAFE_MAX_SIZE)) {
        encryptedData = new byte[(int) attachment.length()];
        StreamUtil.readFully(inputStream, encryptedData);
        GroupsV2Operations operations = ApplicationDependencies.getGroupsV2Operations();
        GroupsV2Operations.GroupOperations groupOperations = operations.forGroup(groupSecretParams);
        return groupOperations.decryptAvatar(encryptedData);
    } finally {
        if (attachment.exists())
            if (!attachment.delete()) {
                Log.w(TAG, "Unable to delete temp avatar file");
            }
    }
}

Example 2 with GroupSecretParams

use of org.signal.zkgroup.groups.GroupSecretParams in project Signal-Android by WhisperSystems.

the class GroupsV2Operations_decrypt_groupJoinInfo_Test method setup.

@Before
public void setup() throws InvalidInputException {
    LibSignalLibraryUtil.assumeLibSignalSupportedOnOS();
    TestZkGroupServer server = new TestZkGroupServer();
    ClientZkOperations clientZkOperations = new ClientZkOperations(server.getServerPublicParams());
    GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(new GroupMasterKey(Util.getSecretBytes(32)));
    groupOperations = new GroupsV2Operations(clientZkOperations).forGroup(groupSecretParams);
}

Example 3 with GroupSecretParams

use of org.signal.zkgroup.groups.GroupSecretParams in project Signal-Android by WhisperSystems.

the class GroupManagerV2 method migrateGroupOnToServer.

@WorkerThread
void migrateGroupOnToServer(@NonNull GroupId.V1 groupIdV1, @NonNull Collection<Recipient> members) throws IOException, MembershipNotSuitableForV2Exception, GroupAlreadyExistsException, GroupChangeFailedException {
    GroupMasterKey groupMasterKey = groupIdV1.deriveV2MigrationMasterKey();
    GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
    GroupDatabase.GroupRecord groupRecord = groupDatabase.requireGroup(groupIdV1);
    String name = Util.emptyIfNull(groupRecord.getTitle());
    byte[] avatar = groupRecord.hasAvatar() ? AvatarHelper.getAvatarBytes(context, groupRecord.getRecipientId()) : null;
    int messageTimer = Recipient.resolved(groupRecord.getRecipientId()).getExpiresInSeconds();
    Set<RecipientId> memberIds = Stream.of(members).map(Recipient::getId).filterNot(m -> m.equals(Recipient.self().getId())).collect(Collectors.toSet());
    createGroupOnServer(groupSecretParams, name, avatar, memberIds, Member.Role.ADMINISTRATOR, messageTimer);
}

Example 4 with GroupSecretParams

use of org.signal.zkgroup.groups.GroupSecretParams in project Signal-Android by WhisperSystems.

the class GroupManagerV2 method getGroupExternalCredential.

@WorkerThread
@NonNull
GroupExternalCredential getGroupExternalCredential(@NonNull GroupId.V2 groupId) throws IOException, VerificationFailedException {
    GroupMasterKey groupMasterKey = SignalDatabase.groups().requireGroup(groupId).requireV2GroupProperties().getGroupMasterKey();
    GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
    return groupsV2Api.getGroupExternalCredential(authorization.getAuthorizationForToday(selfAci, groupSecretParams));
}