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Encryption

  • 31-08-2007 9:38am
    #1
    unnameduser
    Registered Users, Registered Users 2 Posts: 1,081 ✭✭✭


    I have a quick question about encryption

    If i was to encrypt a folder containing files on XP pro and then move the folder to XP home (that doesnt support encryption) I should not be able to access these files??

    cheers in advance


Comments

  • #2
    seamus
    Registered Users, Registered Users 2 Posts: 68,317 ✭✭✭✭seamus


    Yes, you will be able to access these files.

    User A encrypts a folder on his machine. This means that only User A can access this folder when logged into the machine.

    User A then attempts to copy this folder to a drive that doesn't support encryption (e.g. a USB flash drive). The OS decrypts the information as it gets copied, and copies it to the other drive unencrypted.

    Lets say now that you have XP Home and XP Pro installed on the machine. Both run from the C:\. User A (in XP Pro) encrypts a folder on the C:\. Then he reboots and goes into XP Home.
    The user in XP Home won't be able to open the folder.

    Encrypting folders can very easily lead to you losing everything in the folder if you're not careful. What exactly are you trying to do?


  • #3
    unnameduser
    Registered Users, Registered Users 2 Posts: 1,081 ✭✭✭unnameduser


    thanks seamus.

    Ive been reading about EFS on xp pro and was aware that home edition didnt support it and was wondering what would happen.

    Cheers


  • #4
    seamus
    Registered Users, Registered Users 2 Posts: 68,317 ✭✭✭✭seamus


    When I did the XP exams, there wasn't a whole pile of fuss about EFS in it, and I've yet to hear of a company using EFS on their production systems. I've only encountered when some user has managed to encrypt a folder and then wonders why they can't access the folder after I screw with their machine.


  • #5
    Capt'n Midnight
    Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 92,407 Mod ✭✭✭✭Capt'n Midnight


    you could also look at something like www.truecrypt.org if you want interoperability


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