[guardian-dev] Pixelknot v0.3-rc1

Abel Luck abel at guardianproject.info
Wed Apr 24 10:15:01 EDT 2013 

Ah, good to know.

Shall I push a little patch to PK that adds a log sharing option?
Jenkins would create a new test build right away.

~abel

Nathan of Guardian:
> Alogcat no longer works for newer versions of Android that require new permissions or root for log access.
> 
> Abel Luck <abel at guardianproject.info> wrote:
> 
>> Bernard,
>>
>> If you install the app aLogcat [1], then after PK crashes you can open
>> it up and send us the log file.
>>
>> ~abel
>>
>>
>>
>> [1]:
>> https://play.google.com/store/apps/details?id=org.jtb.alogcat&hl=en
>>
>> Bernard Tyers - ei8fdb:
>>> Hi Harlo,
>>>
>>> I'll try and find log files, but I am not sure what extent Android on
>> these devices log app crashes..
>>>
>>> I can certainly find logs for the issue where the steg'ed filesize is
>> 0 B when its e-mailed as Kaiten creates a debug log.
>>>
>>> On 22 Apr 2013, at 23:48, Harlo Holmes wrote:
>>>
>>>> I suspect it has to do with the architecture, but I would be very
>> curious to see your logs.  I don't have any devices like yours to test
>> on right now, sadly.  Do you have the capability to do log your output
>> and send it to us in a text file or post it somewhere on pastebin?
>>>
>>>> Thanks,
>>>> Harlo
>>>
>>>> ++++++++++++++++++++++++++
>>>> Research Fellow, Head of Metadata
>>>> The Guardian Project
>>>
>>>> pgp: 0xA4469630
>>>> twitter: @harlo
>>>
>>>
>>>> On Mon, Apr 22, 2013 at 4:54 AM, Bernard Tyers - ei8fdb
>> <ei8fdb at ei8fdb.org> wrote:
>>>> -----BEGIN PGP SIGNED MESSAGE-----
>>>> Hash: SHA1
>>>
>>>> Hi Harlo,
>>>
>>>> Thanks for the link, I've downloaded and installed v 0.3-RC1.
>>>
>>>> This time PK crashes, once it starts the steg process. It happens in
>> all cases (1. take photo, 2. enter message, if I do 3. enter secret or
>> not, then 4. start the steg process).
>>>
>>>> I have uninstalled, reinstalled, and no difference. Is there any
>> logfile created so I can try and find out more?
>>>
>>>> When I get some time this evening, I can make a short video.
>>>
>>>> In the meantime, to cover the observations from yesterday:
>>>
>>>> TASK 1:
>>>> Issue 1: Cannot get to this step to check as PK crashes.
>>>> Issue 2: Cannot get to this step to check as PK crashes.
>>>
>>>> TASK 2:
>>>> Issue 3: Still present
>>>> Issue 4: Still present.
>>>> Issue 5: Cannot get to this step to check as PK crashes.
>>>
>>>> The Razr i UE has an Intel Atom CPU (Android 4.1.2. Android was
>> ported by the nice people in Intel :) ), and from experience some
>> applications are not compiled for it, BBC iplayer and Firefox from
>> memory.
>>>
>>>> I guess if PK installs, and *used* to run (partly) this couldn't be
>> the issue...?
>>>
>>>> Hope this helps.
>>>
>>>> thanks,
>>>> Bernard
>>>
>>>
>>>
>>>> On 21 Apr 2013, at 14:13, Bernard Tyers - ei8fdb wrote:
>>>
>>>>> -----BEGIN PGP SIGNED MESSAGE-----
>>>>> Hash: SHA1
>>>>>
>>>>> Hello all,
>>>>>
>>>>> Apologies it's taken me so long to get this finished but I've been
>> busy with less interesting things.
>>>>>
>>>>> This walkthrough has been done with Pixelknot (0.3) on a Motorola
>> Razr i (unrooted) device running Android 4.1.2.
>>>>>
>>>>> I've used two tasks which I think would reflect "normal" usage of
>> an app like this:
>>>>>
>>>>> TASK 1: Embed message in preselected picture, use a password and
>> then send it via Dropbox.
>>>>> TASK 2: Embed message in preselected picture, use no password and
>> send it via e-mail.
>>>>>
>>>>> I may have made some assumptions here that may be incorrect.
>>>>>
>>>>> Some of the 5 issues I found may be bugs like I mentioned. if so, I
>> am happy to file them if needed. For the other issues, I've given some
>> possible solutions.
>>>>>
>>>>> Firstly, I'd suggest you have a look at the video here: 
>> https://vimeo.com/64487693  and then take a look at the issues below.
>> It'll make more sense.
>>>>>
>>>>> (Sorry for the continuous auto-focus on the camera, but the light
>> was terrible!)
>>>>>
>>>>> ====================
>>>>>
>>>>> TASK 1: Embed message in preselected picture, use a password and
>> then send it via Dropbox.
>>>>>
>>>>> 1. At min 1:38: The user is offered two "trusted apps" to share the
>> image with.
>>>>>
>>>>> Was there a decision to use just these two? If the user doesn't
>> want to use Bluetooth or Dropbox, it is not clear how to share them
>> with other tools. The arrow in the top right hand-side is the only way
>> to find the other apps you can use.
>>>>>
>>>>> SOLUTION: Display applications most used to share on that "Share
>> with..." screen. Or possibly display more options eg e-mail, SMS.
>>>>>
>>>>>
>>>>> 2. At min 1:59: The user is notified that the upload to Dropbox has
>> failed.
>>>>>
>>>>> I don't know how the file which has been steg'ed is handled. The
>> error message from Dropbox (seen at 2:06) says "We couldn't upload
>> '136653636941_embed.jpg'. It may have been moved, deleted, os is
>> located on an SD card that is currently unavailable."
>>>>>
>>>>> SOLUTION: If this is a bug, then I am happy to get it logged
>> properly. Maybe it's a bug just with Motorola Razr i phones?
>>>>>
>>>>> ====================
>>>>>
>>>>> TASK 2: Embed message in preselected picture, use no password and
>> send it via e-mail.
>>>>>
>>>>> 3. At min 2:29: The user is able to advance passed message entry
>> window, but is required to enter message.
>>>>>
>>>>> Is the message optional? If not, then the user should not be able
>> to advance without entering message. It is really good that you guys
>> have caught the possibility of them not entering a message by giving
>> them the warning ("Oh no, it looks like you haven't entered a secret
>> message yet. Please enter one.") but it would be even better if they
>> didn't see that warning.
>>>>>
>>>>> SOLUTION: Give clear indication that the message not optional,
>> therefore removing the necessity of the "Oh no..." warning.
>>>>>
>>>>>
>>>>> 4. At min 2:59: How does the user advance to the next screen?
>>>>>
>>>>> When the user has entered the secret message, they are given no
>> clear way to advance to the next screen. On inspection there are two
>> options:
>>>>>
>>>>> 1. navigation dots.
>>>>> 2. The password entry field icon.
>>>>>
>>>>> Since both bring the user to the same place, it might be a good
>> idea to remove one of them? Is there a recommended next step? Ie. do
>> you want the user to enter password for the image?
>>>>>
>>>>> SOLUTION: If the password entry field icon was removed, and the
>> user swiped R-to-L they would be prompted with the:
>>>>>
>>>>> "Wait! You haven't set a password for your image. Are you sure you
>> want to continue?. No set my password OR Yes, continue." message.
>>>>>
>>>>> At this point, they would either continue, or enter the password.
>>>>>
>>>>>
>>>>> 5. At min 4:35: The file has been attached and sent by e-mail
>> successfully, however the file size is 0 B.
>>>>>
>>>>> I guess this is a bug?
>>>>>
>>>>> SOLUTION: If this is a bug, then I am happy to get it logged
>> properly. Maybe it's a bug just with Motorola Razr i phones?
>>>>>
>>>>> ====================
>>>>>
>>>>> I hope they are of help. I'm looking forward to seeing the next
>> version.
>>>>>
>>>>> regards,
>>>>> Bernard
>>>>>
>>>>>
>>>>>
>>>>> On 10 Apr 2013, at 00:29, Mark Belinsky wrote:
>>>>>
>>>>>> Thanks so much for the feedback Bernard! The best UI of a security
>> app is quite the compliment!
>>>>>>
>>>>>> Do send comments. We're tweaking and strengthening the app now, so
>> they'd be helpful. There are known issues with the galaxy s3 and we're
>> trying to test for bugs across a wide range of models.
>>>>>> ~Sent from my mobile. Please excuse any typos or terseness.
>>>>>>
>>>>>
>>>>>
>>>>> - --------------------------------------
>>>>> Bernard / blueboxthief@#guardianproject
>>>>>
>>>>> IO91XM / www.ei8fdb.org
>>>>>
>>
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