Can i play downloaded encrypted videos on my android? - Android Q&A, Help & Troubleshooting

I enrolled in an paid coding bootcamp near my home. I learnt many great things and they also offered a two month access to their online coding tutorials. I noticed that the app also had offline viewing. Now , since the access i have is only for two months, is there a way i can view these offline contents even after i lose my access? It would be for future references and strictly for my personal educational purposes only. Now, some basic details are:
1) The files are stored in /android/data/(.com.appname.somthing)
2) Each video is broken into 4 files each.
3) The files are as follows: an audio named file(which is in .mp4 format), a video named file(.mp4), a jpeg file (which contains a random frame from the video, and a .mpd file.
4) after some basic searching , i came to know .mpd files are used for something called dash streaming. I don't any technical details of the same as I am just starting to code.
I would like to know if there's a tool which decrypts all the 4 files and convert it into a single .mp4 file OR If a tool exist which could play these files after importing them one by one.
I really don't know if this is possible or not but either way I would know about video encryption technique used by android apps.

adityakarn26 said:
I enrolled in an paid coding bootcamp near my home. I learnt many great things and they also offered a two month access to their online coding tutorials. I noticed that the app also had offline viewing. Now , since the access i have is only for two months, is there a way i can view these offline contents even after i lose my access? It would be for future references and strictly for my personal educational purposes only. Now, some basic details are:
1) The files are stored in /android/data/(.com.appname.somthing)
2) Each video is broken into 4 files each.
3) The files are as follows: an audio named file(which is in .mp4 format), a video named file(.mp4), a jpeg file (which contains a random frame from the video, and a .mpd file.
4) after some basic searching , i came to know .mpd files are used for something called dash streaming. I don't any technical details of the same as I am just starting to code.
I would like to know if there's a tool which decrypts all the 4 files and convert it into a single .mp4 file OR If a tool exist which could play these files after importing them one by one.
I really don't know if this is possible or not but either way I would know about video encryption technique used by android apps.
Click to expand...
Click to collapse
as i know media files have something named *decoder* the app that you have **encrypted** the media file
**encrypt not means make a file part by part it means Changing and calculating codes by a formula just their own app can read and decrypt and decode it** forget it bro

Related

Any WM6.5 freeware text (rtf/doc) editor with hyperlinks ?

The answer is probably not...
What I am looking for is a freeware editor that supports common cross-platform formats like RTF or DOC and maintains hyperlinks inserted in them. The idea is to create a document on the desktop with relative links to other documents in the same directory and be able to use them when the whole directory is synced to the phone.
I don't want to use a proprietary format like OneNote, PhatNotes, ListPro etc., so that I could keep using the files when I switch phones next year, whether I go Android or stay with Windows. This also helps to keep info portable and useable across computers and platforms on the desktop. I had to switch, in the past, from ShadowPlan to PocketThinker to ListPro and moving the info to the new platform has always been a major, royal PITA. I now want to convert my existing ListPro files for the last time into format that I can use from now on without changes.
Any help is appreciated !
Ummagumma said:
The answer is probably not...
What I am looking for is a freeware editor that supports common cross-platform formats like RTF or DOC and maintains hyperlinks inserted in them. The idea is to create a document on the desktop with relative links to other documents in the same directory and be able to use them when the whole directory is synced to the phone.
I don't want to use a proprietary format like OneNote, PhatNotes, ListPro etc., so that I could keep using the files when I switch phones next year, whether I go Android or stay with Windows. This also helps to keep info portable and useable across computers and platforms on the desktop. I had to switch, in the past, from ShadowPlan to PocketThinker to ListPro and moving the info to the new platform has always been a major, royal PITA. I now want to convert my existing ListPro files for the last time into format that I can use from now on without changes.
Any help is appreciated !
Click to expand...
Click to collapse
Hello,
AgileNotes Touch v3.0 test, is magnificent: http://www.agilitylab.com/
Regards,
jcmm said:
Hello,
AgileNotes Touch v3.0 test, is magnificent: http://www.agilitylab.com/
Regards,
Click to expand...
Click to collapse
Thanks, this looks very promising. But it doesn't support hyperlinks, does it ? I will try it today.
I tried AgileNoes. It's indeed a very good application, and as far as file handling is concerned, it's superior to Pocket Word. It does however have a major flaw - there's no way to search for text in a document, at least none that I could find. So if I have a large file with multiple notes, I need to use Word to find info quickly.
Unfortunately, though, no hyperlinks...

[Release] PSXPeria: Native PSX Emulator ISO Converter

PLEASE, PLEASE post all your issues and bug reports regarding the converter at github. https://github.com/yifanlu/PSXperia/issues Also, include detailed information such as a copy of the converter output, android's logcat, etc. If your bug is reported already, make a comment with your system information and logs on the issue so I know multiple people are experiencing it.
Links
My site http://yifan.lu/
First writeup, about the formats and disassembling
Second writeup, about decrypting files, cracking the format, and such
YouTube video of Xperia Play running Crash 3
Source code
1.0 binary jar (command line & gui)
Wiki: detailed usage guide, compatibility list, etc
Stuff that's done
Reversed engineered all propriety formats (image.ps,zpak,toc,etc)
Extracted and decrypted emulator binary
Mapped out important functions
Patched TOC functions to load unencrypted tables (wrapper library)
Tool to extract image.ps into an ISO
Tool to convert an ISO to image.ps
Tool to generate modified APK with wrapper library, custom text, icon, and data (converter backend)
Tool to extract Crash Bandicoot and patch some files for the converter
Command line interface (frontend)
GUI (frontend)
Remove requirement for "aapt" and "jarsigner" in PATH.
Bug bashing
Stuff for the future (no promises)
Load gamedata/icon into converter from XML file (name,titleid,etc)
Batch convert
Multidisk
Game manual
Check out this guide if you are having any problems. It contains a detailed usage directions, some guidelines for settings, and troubleshooting advice. If you still can't get it working, submit a bug report here.
Nice to see someone starting on this ,, I Bought syphon filter. Just tell me what to do and I ll do it.
good luck m8
We cannot share paid games, you will have to get someone who has bought the game to do a memory dump for you ........
Sent from my R800i using Tapatalk
Why doesn't someone just donate the money so he can buy a game? I'd do it but I'm buying a house.
How much does any multi-disk game costs? SE's PSX market is not available here.
The problem is... AFAIK, no multidisk game is available in the PSX market.
AndroHero said:
We cannot share paid games, you will have to get someone who has bought the game to do a memory dump for you ........
Sent from my R800i using Tapatalk
Click to expand...
Click to collapse
Yes, I know. I only really need the first 40 bytes or so of image.ps from the ZPAK.
gojoechris said:
Why doesn't someone just donate the money so he can buy a game? I'd do it but I'm buying a house.
Click to expand...
Click to collapse
First, I can't access the store because I have the R800i and am in US. Second, it is a rule of mine to never accept donations until after a project is completely finished.
yifanlu said:
First, I can't access the store because I have the R800i and am in US. Second, it is a rule of mine to never accept donations until after a project is completely finished.
Click to expand...
Click to collapse
That's interesting to learn. My phone is an unlocked R800a that I'm using on AT&T. I installed the unlocked UK firmware on it and it now reports as an R800i in the "About phone" section. However, as of the last month or so, I can finally see games in the PlayStation Pocket app store. I wonder if it's using the IMEI or something like that to report to the store for the region?
If you use a User Agent String changer to match that of the r800a and use a proxy so that the website thinks you are in the proper country you can maybe able to download the games that way.
I can confirm this worked for the gameloft wapshop from my desktop. I have never seen where the psx games come from so I cant guarantee it, but it is worth a shot.
They're actually in the Android Marketplace. For the longest time, they were limited to Europe, but now they're available in the US. Perhaps it might be possible to purchase them from there and remote install them to the phone?
Again all that can be done with the ua switcher and a
Proxy in firefox. Android market is available via your browser. Could be worth a shot.
sent from the original unlocked R800x.
I'm sure there'll be no need to break a sweat about this.
LOL @ashergray's sig
Logseman said:
I'm sure there'll be no need to break a sweat about this.
LOL @ashergray's sig
Click to expand...
Click to collapse
I figured I earned it. I was for about 20 minutes the only unlocked R800x.
That felt pretty awesome.
So I have extracted ALL the encrypted files now, this means libdefault.so, image_ps_toc, and ps1_rom.bin. It was pretty hard because it was obfuscated in memory, but I got it using another, unorthodox method. Now, here's the weird thing. I can't figure out how the PS1 bios works. It's not a copy of any of the BIOS floating around the internet, in fact, it's not even the same format (all the bios that can be found on the internet have a similar structure). In addition, I still can't figure out what image_ps_toc is for. If anyone wants to take a look at these files for me (I've already decrypted them, you're welcome), PM me.
EDIT: I spoke too soon, I found out that the PS1 ROM is actually part of the PS2 BIOS. Yea, wtf. It seems to be using the PS1 emulator bios from the PS2, or something like that. Now, to find what the toc file is.
yifanlu said:
So I have extracted ALL the encrypted files now, this means libdefault.so, image_ps_toc, and ps1_rom.bin. It was pretty hard because it was obfuscated in memory, but I got it using another, unorthodox method. Now, here's the weird thing. I can't figure out how the PS1 bios works. It's not a copy of any of the BIOS floating around the internet, in fact, it's not even the same format (all the bios that can be found on the internet have a similar structure). In addition, I still can't figure out what image_ps_toc is for. If anyone wants to take a look at these files for me (I've already decrypted them, you're welcome), PM me.
EDIT: I spoke too soon, I found out that the PS1 ROM is actually part of the PS2 BIOS. Yea, wtf. It seems to be using the PS1 emulator bios from the PS2, or something like that. Now, to find what the toc file is.
Click to expand...
Click to collapse
TOC maybe contains sub-channel data, known from original PSX CD-s, which served in copy-protection mechanism?
I've been trying to find some information on the PSX iso format, like what's at the different offset, where checksums are, where the executable starts, etc, but google isn't helping. Can you tell me more about this? If this copy protection thing is true, that means every game has a different libjava-activity.so. Could someone with another game pm me with /data/data/packagename/libs/libjava-activity.so where package name starts with com.sony and ends with the titleld? Also, Blagus, if you want, I can let you take a look at the decrypted toc files.
yifanlu said:
I've been trying to find some information on the PSX iso format, like what's at the different offset, where checksums are, where the executable starts, etc, but google isn't helping. Can you tell me more about this? If this copy protection thing is true, that means every game has a different libjava-activity.so. Could someone with another game pm me with /data/data/packagename/libs/libjava-activity.so where package name starts with com.sony and ends with the titleld? Also, Blagus, if you want, I can let you take a look at the decrypted toc files.
Click to expand...
Click to collapse
You may want to download original Crash PSX image in CloneCD format, which comes with CUE, IMG and SUB files. Check the SUB file size, if it's approximate to TOC fle, then it might be worth downloading it.
Blagus said:
You may want to download original Crash PSX image in CloneCD format, which comes with CUE, IMG and SUB files. Check the SUB file size, if it's approximate to TOC fle, then it might be worth downloading it.
Click to expand...
Click to collapse
I made an image using CloneCD and looked at the subdata file. It's 25MB uncompressed and 4MB compressed. The TOC file is 67KB, so I don't think that's it.
maybe it stands for Table Of Contents.
sort of a way to keep track of all the files within the package.
ashergray said:
maybe it stands for Table Of Contents.
sort of a way to keep track of all the files within the package.
Click to expand...
Click to collapse
It seems like a license or license check. I used the libjava-activity for another game, and it said could not authenticate the licensed content.

[Q] Encryption app for folders, preferably multi-platform as well

I'm looking for an app that will allow me to encrypt folders (preferably without having to go through a third-party file manager) on my Galaxy Note 2 and Nexus 7, while possibly being able to also decrypt and view the folder/files on a Windows or Mac machine.
BoxCryptor is one that I've looked into but I'm not sure if it will allow me to encrypt folders within folders.
A little bit of background for what I need this for... I'm a medical health professional and there are times when I have sensitive data about some of my patients that I need to access via my phone/tablet/home/work computer. I don't necessarily need the folder of patient data to sync across all devices but if that could be done (say via DropBox or WebDAV, encrypted), that would be a bonus.
There are some apps on Google Play that seem like they might work:
Encryption Manager
Safe+
DroidCrypt
If anyone has any feedback on any of the above, or can recommend an app that I've missed (or a link to another xda post that I missed in my searches), that would be much appreciated. I'd rather not have to pay for each one to see if it fits my criteria.
Thanks in advance!
cdnmaplechick said:
I'm looking for an app that will allow me to encrypt folders (preferably without having to go through a third-party file manager) on my Galaxy Note 2 and Nexus 7, while possibly being able to also decrypt and view the folder/files on a Windows or Mac machine.
...
A little bit of background for what I need this for... I'm a medical health professional and there are times when I have sensitive data about some of my patients that I need to access via my phone/tablet/home/work computer. I don't necessarily need the folder of patient data to sync across all devices but if that could be done (say via DropBox or WebDAV, encrypted), that would be a bonus.
Click to expand...
Click to collapse
@cdnmaplechick, did you have any luck with all this? EDS is another one you could try, but I'm not sure if it can do what you want without rooting your device. If you are comfortable rooting your device Cryptonite is an additional option.
If I understand you correctly I am also looking for something similar (which is how I ended up finding your post). I'd like an app that can encrypt specified folders such that other apps can interact with the contained encrypted files without any trouble (this would be very analogous to how TrueCrypt works for Windows computers). I know there is full device encryption available for Android, but that has its drawbacks. I think what you and I are both wanting is something like full device encryption, but being able to limit it to a few designated folders.
I'd love to hear anything you're willing to share about your experiences (positive or negative) with pursuing all this!
Edit: Forgot to mention a secure syncing service you might be interested in: SpiderOak. I have not yet used their Android app, but I use SpiderOak for Windows all the time to securely sync sensitive data between multiple Windows computers (the data is stored in TrueCrypt volumes on each computer).
Apparently this works with Truecrypt so it will work when you transfer it to a Mac or PC
https://play.google.com/store/apps/details?id=com.sovworks.eds.android
Droidcrypt should do entire folders, but has a lot of neg reviews. Personally I wouldn't use any closed source encryption app you have no idea if they're actually generating true random numbers or if it's junk software.
LUKS is free and open source, if your phone is rooted
https://play.google.com/store/apps/details?id=com.nemesis2.luksmanager you can just copy folders into the virtual encrypted folder it creates.
https://play.google.com/store/apps/details?id=org.mrpdaemon.android.encdroid is open source, free and works with dropbox
https://play.google.com/store/apps/details?id=com.koushikdutta.backup Carbon now uses encrypted backup
There's also APG http://thialfihar.org/projects/apg/
You can use PGP to encrypt/decrypt files (perhaps folders?) for transferring to another computer. Or if both your Nexus and your PC/Mac is using full disc encryption then you can just transfer the folders to each other in the clear with USB.
derpsec said:
Droidcrypt should do entire folders, but has a lot of neg reviews. Personally I wouldn't use any closed source encryption app you have no idea if they're actually generating true random numbers or if it's junk software.
Click to expand...
Click to collapse
Yeah, I've felt ambivalent about Droidcrypt. It should do what I want but they feel like such an unknown; they don't even have a website (not that that would make them automatically safer, but I'd at least be able to get a little more of sense of who I'm trusting my data to).
derpsec said:
https://play.google.com/store/apps/details?id=org.mrpdaemon.android.encdroid is open source, free and works with dropbox
Click to expand...
Click to collapse
Thanks for those additional links, and especially for Encdroid! I'm a fan of open source, and it looks like the author's on the XDA forums:
http://forum.xda-developers.com/showthread.php?t=1917665
I definitely want to check that one out further.
How about Cryptonite? https://code.google.com/p/cryptonite/ It says it uses TrueCrypt.
Yes cryptonite seems to be a good solution.
Check-->
https://play.google.com/store/apps/details?id=csh.cryptonite&hl=el
Hello friends
Is an application for Android that folders can be encrypted and password-access to that folder wherever necessary, same encryption on the kms 9(Kaspersky Mobile Security 9 v9.4.96 – S60v3)

[Q] HTC ONE X+ Download vs SFTP. Invisible files.

When I download a DRM free mp3 like from openbsdorg/lyricshtml, using a browser, it arrives in the Download folder. I can then see it with the included ap "Downloads". If I click on it, it plays just great.
When I sftp the same file into the Download folder with Turbo Client it shows up fine in the in the "local" view provided by that ap. I can also see other files that I previously downloaded normally (using a browser) sitting beside it.
However, when I exit the Turbo Client, and try to view the file name with the built in Downloads ap, the file name is invisible, and obviously I can't play it either.
What is the difference between the files in the two cases? Is there an additional info file parallel the mp3 data file when I use the standard download process? If I go back into Turbo Client, I can still see the file that was sftp'd into the folder. It is still there. That's why I suspect additional information needs to be stored somewhere.
Can I avoid learning a whole new operating system for what is supposed to be a consumer friendly device?
How can I create the additional information that is needed?
AustinHook said:
When I download a DRM free mp3 like from openbsdorg/lyricshtml, using a browser, it arrives in the Download folder. I can then see it with the included ap "Downloads". If I click on it, it plays just great.
When I sftp the same file into the Download folder with Turbo Client it shows up fine in the in the "local" view provided by that ap. I can also see other files that I previously downloaded normally (using a browser) sitting beside it.
However, when I exit the Turbo Client, and try to view the file name with the built in Downloads ap, the file name is invisible, and obviously I can't play it either.
What is the difference between the files in the two cases? Is there an additional info file parallel the mp3 data file when I use the standard download process? If I go back into Turbo Client, I can still see the file that was sftp'd into the folder. It is still there. That's why I suspect additional information needs to be stored somewhere.
Can I avoid learning a whole new operating system for what is supposed to be a consumer friendly device?
How can I create the additional information that is needed?
Click to expand...
Click to collapse
Have you tried seeking help from the developer of Turbo Client? He seems very open to support requests according to his thread on xda (http://forum.xda-developers.com/showthread.php?t=2023646). I feel like this issue you are having is more closely related to the app you are using and not so much the device, so this forum probably is not the ideal place to pose your question.
Download vs SFTP file visibility question
NasaGeek said:
Have you tried seeking help from the developer of Turbo Client? He seems very open to support requests according to his thread on xda (http://forum.xda-developers.com/showthread.php?t=2023646). I feel like this issue you are having is more closely related to the app you are using and not so much the device, so this forum probably is not the ideal place to pose your question.
Click to expand...
Click to collapse
Thanks. I have now posted on his forum as well, however, I have the feeling it is a generic issue, relating to the move to more Apple like total control of use of the device. My HTC ONE X+ is Android 4.1.1 (I should have mentioned earlier). I only resorted to sftp because I couldn't mount it as an SD drive. I am coming from an HTC Desire running Android 2.2 where I could just mount the device like a memory stick. That was nice. Now under Jelly Bean it seems there is an intent to take away user control. This is rotten. I'm not a cell phone guru. I don't want to have to learn about "rooting" the device, reflashing the ROM or whatever, I just want to use what should be a consumer friendly device, but I suspect an attempt to redefine the meaning of consumer friendly, to make us jump all kinds of hoops to get straight forward access to the data it deals with.
I'm sorry you've been having such trouble, but your skepticism regarding MTP (this has been Android's internal storage standard since ICS) is quite unfounded. An Android engineer talks about it a little more in this reddit post, but the general idea is MTP was done to make things easier, not harder, and you should most certainly still be able to access your device's storage by plugging it into your computer. You should be able to do this "out-of-the-box" so to speak, without rooting or unlocking the device. You might, however, need to install the necessary drivers for your phone. Android is all about giving the user a healthy amount of control over their device and what files come and go from it (to a certain degree), though I'm not sure I can say the same thing for HTC Sense...
edit: upon reading your post in the other thread, I think I understand your issue. The developer's response was unfortunately not terribly informative for someone who is not well-versed with Android. In order to access your mp3 files you will need to download a file browser app from the Play Store (like this one ) and navigate to your sdcard/Downloads folder.
I probably should have read your post a little more clearly, particularly where you mentioned you were trying to view the files with the Downloads app

Video backup over data app

I'm looking for an app that can essentially do the same thing as Google Photos "Express" Backup or Facebook photo/video upload.
My issue is that I would like to be able to backup photos and videos right after I take them into drive. In order to conserve data and battery usage, I'd like to upload a lower quality version of the video and perhaps a lower quality version of photos too. That way, if I'm out all day and my phone gets lost/stolen/destroyed, I don't lose everything from that day and at least have a low quality version (which is better than nothing)
Facebook seems to be able to do this when you make a post with photos/videos attached. It seems to be able to compress them very quickly and upload them without using much data or battery. I think Whatsapp can do the same. Google Photos seems to have this feature in some countries. It has an "Express" quality which lets you upload a lower quality version. They say they are testing it before they make it available to everyone. It's been a year since they announced and still nothing.
Therefore, I'm asking the community here if anyone knows of an app I can use to do what I am looking for.
I have contemplated writing my own app, but I have no experience with the google drive interface or video/photo compression.
@eng3
If your device is rooted then install Root Explorer Pro.
IMHO Root Explorer Pro is one of the best file manager apps for users of rooted Android . It can access all the files involved in the Android OS, it consist of Google drive, Dropbox, sending files, network support, create and extract zip files, send files via Bluetooth, etc.pp.
No it is not rooted. Also, I don't think lossless compression is enough. Videos are already highly compressed so Zipping typically does not provide much savings. Lossy compression is the only way which requires use of a video codec.
I have found apps that can do the video compression using mediacodec. If I could find one that could automatically do it by monitoring a folder (my camera folder) and then place it in another folder, that would be enough. I already have a program that can auto sync the contents of a folder to google drive.

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