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Thread: File encryption.. ?!

  1. #1
    Join Date
    Aug 2006
    Location
    Denmark
    Beans
    39
    Distro
    Ubuntu

    Question File encryption.. ?!

    I wanted to lean how to encrypt files and folders, and I managed to install Seahorse and get it working so I can right-click files and then encrypt them with a GPG key.. Working fine!

    But there's one thing I simply don't understand. To open the file I have to enter the password, of course. But by pressing the delete button, I can erase the encrypted files. Not so secure again?

    Why can I delete encrypted files? Doesn't make sense.
    The truth about 9/11 is being hidden from us.

    Code:
    sudo fix problem

  2. #2
    Join Date
    Nov 2009
    Beans
    598
    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: File encryption.. ?!

    It does make sense. Encrypting files is what is says it is to be. All It does is scramble the file contents so there unreadable without a password. This does not make your files invincible. The encrypted files can be deleted, copied, moved, etc. like any other file or directory you have.

  3. #3
    Join Date
    Apr 2010
    Location
    England
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    3,286

    Re: File encryption.. ?!

    I think you're misinterpreting the meaning of secure here. It's secure in that nobody can read the contents without a password, not secure in that it's fixed to the disk. If you want to make it harder to remove a file, then set it's owner to root and set file permissions to 755. (root has full access and can delete, but all groups can only read and execute)
    http://xkcd.com/293/
    There are 10 kinds of people in this world: Those who understand ternary, those who don't, and those who confuse it with binary.

  4. #4
    Join Date
    Aug 2006
    Location
    Denmark
    Beans
    39
    Distro
    Ubuntu

    Exclamation Re: File encryption.. ?!

    Okay, I see. Thanks for the help!

    And thanks to you WorMzy for pointing out the root and permission stuff, gotta play with that some day.
    The truth about 9/11 is being hidden from us.

    Code:
    sudo fix problem

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