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Samsung AND SD card encryption problem

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  • 03-09-2019 10:09am
    #1
    1874
    Registered Users Posts: 2,400 ✭✭✭


    Im having a problem decrypting an SD card (micro) on a Samsung phone,
    I encrypted it, a long time ago on my A3, during this year I was looking at replacement phones second hand, I bought a newer versionthat had been factory reset in front of me, placed my SIM and SD card in it and worked away, I realised my SD card said, encrypted as I couldnt see my pictures, so I removed the SD card and refitted it to the original phone (A3 which I still have now), but it saysd the SD card is decrypted and wont allow me to decrypt it, is there anyway I can recover my pictures and files??
    software? hardware? doing something to the phone like rooting it? (the later of which Im not sure how to do?



    I looked this up and it appears this has come up before with Samsung phones, I tried one suggested solution on stackexchange which said, remove the SD card, factory reset the phoen and reinstall the card, but it still cant open the pictures or files.
    Anyone I can bring it to to do this quicker, I dont want to format the card for reuse until I try something as Ive a lot of pictures on there.


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    #2
    1874
    Registered Users Posts: 2,400 ✭✭✭1874


    Anyone? hellllllp


  • Options
    #3
    ED E
    Registered Users Posts: 36,167 ✭✭✭✭ED E


    Did you factory reset the old phone? If so the data is probably gonzo.


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    #4
    1874
    Registered Users Posts: 2,400 ✭✭✭1874


    Initially I didnt and then the only information I could find online was to remove the (micro) SD card, factory reset the phone and then re-insert the SD card, I tried before and after resetting the phone, its exactly the same as before I reset the phone, it will not allow me to decrypt the SD card.

    Some ray of hope, It looks like images were being sent to an old dropbox account, I cant tell if its all of them as there were so many and my dropbox kept giving me notifications on my laptop to upgrade to a paid version, but I have a folder on my laptop which seemed to be backing at least some images up from dropbox.


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    #5
    ED E
    Registered Users Posts: 36,167 ✭✭✭✭ED E


    Samsung do their own thing but apparently the master keys are stored on your phone and only unlocked with the pin/patt. By wiping the phone you've perma locked those files as far as I can tell.
    1 billion billion years
    As shown above, even with a supercomputer, it would take 1 billion billion years to crack the 128-bit AES key using brute force attack.

    Heat death of the universe stuff.


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    #6
    1874
    Registered Users Posts: 2,400 ✭✭✭1874


    ED E wrote: »
    Samsung do their own thing but apparently the master keys are stored on your phone and only unlocked with the pin/patt. By wiping the phone you've perma locked those files as far as I can tell.



    Heat death of the universe stuff.




    ok, I think they were inaccessible anyway (the phone simply wouldn't decrypt the card), or was there a way before I reset the phone??


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