RE: Decrypt File

From: Jim Barrett (jimb_at_ins.com)
Date: 05/15/03

  • Next message: Jim Miller _at_ Cox: "Re: suggestions on a good firewall" 
    To: "'James Yang'" <guanghuyang@yahoo.com.cn>, <security-basics@securityfocus.com>
Date: Thu, 15 May 2003 14:43:15 -0400

    You may be out of luck.

    If your W2K system is a member of a domain and you have Cert Services
    running, you probably tied your encrypt/decrypt key to your domain
    account. There is also a recovery agent key created and it may be
    assigned to someone in your company.

    On the other hand, if this is a standalone workstation you are in
    trouble. When you use EFS on a standalone box, two copies of the
    encrypt/decrypt keys are created. One is tied to the user account that
    did the encryption and the other to the local Admin account.

    If you did a full backup and restore (including all of the W2K system
    files) this should work. If you only backed up your data files and then
    wiped and rebuilt the system, it is not going to work as you wiped out
    the encrypt/decrypt keys when you wiped out the OS.

    Sorry...

    -----Original Message-----
    From: James Yang [mailto:guanghuyang@yahoo.com.cn]
    Sent: Wednesday, May 14, 2003 11:39 PM
    To: security-basics@securityfocus.com
    Subject: Decrypt File

       My system occured problem yesterday.I backuped my files and then

    reinstalled my W2K system.After I copied back my files I found I
    couldn't

    open the encrypted files.

        How can I open, could anyone give me a tip.

        Thanks.

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