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Encrypting File System (EFS) and changing usernames/passwords...

This is a discussion on Encrypting File System (EFS) and changing usernames/passwords... within the Windows XP Support forums, part of the Tech Support Forum category. Does changing the administrator's username or password (or another user's username and password) affect folders (files...) that are already encrypted


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Old 09-18-2003, 05:07 PM   #1
 
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Does changing the administrator's username or password (or another user's username and password) affect folders (files...) that are already encrypted with the original username and password (certificate)? [In other words, will changing the username and password break (make unusable) the current encryption - files, folders, certificate?]

Please provide any helpful links on this particular issue that you know of.

Thank you.
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Old 09-19-2003, 12:49 AM   #2
 
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ROHT,

•If USER1 has encrypted folders, and he decides to change
his/her password, then the encrypted folders remain usable.

•If USER1 has encrypted folders, and the administrator (or any
other user with admin rights for that matter) decides to change
USER1's password, then the encrypted folders become unusable.

PS. of course you can always use a recovery agent to gain
access to the files, but that's a PITA :D

hope that helps.
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Old 09-19-2003, 12:52 AM   #3
 
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forgot to mention:

changing the user name, doesn't afect encryption at all.

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Old 09-19-2003, 12:07 PM   #4
 
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Quote:
Originally posted by breakerfall
ROHT,
•If USER1 has encrypted folders, and he decides to change
his/her password, then the encrypted folders remain usable.
•If USER1 has encrypted folders, and the administrator (or any
other user with admin rights for that matter) decides to change
USER1's password, then the encrypted folders become unusable.
PS. of course you can always use a recovery agent to gain
access to the files, but that's a PITA :D
hope that helps.
Hi breakerfall,

Thanks for the response...

Does this mean that if USER1 is going to change his/her password that s/he should decrypt the folders/files first...then change the password...then re-encrypt the folders/files?

Also, what becomes of the original certificate - is it overwritten by the new one (with the new password considered)?

Thanks again...
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Old 09-19-2003, 02:06 PM   #5
 
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No.
USER1 DOES NOT need to decrypt the files prior to change the password.

And YES, you got it, the certificate is updated upon password change.
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Old 09-19-2003, 02:24 PM   #6
 
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Quote:
Originally posted by breakerfall
No.
USER1 DOES NOT need to decrypt the files prior to change the password.

And YES, you got it, the certificate is updated upon password change.
I'm confused!

I thout that the encrypted files would become unusable if USER1's password is changed.

So, if USER1 changes his password, the encrypted files are unusable by USER1 - so how does USER1 avoid this?

Thanks. Sorry if I causing greater confusion.
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Old 09-19-2003, 02:38 PM   #7
 
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I'm leaving my office as I type this, I'll try to reply later from home.
Try to re-read my first post.

Test escryption creating 2 temporary users in your system.
see what happens when you change passwords/names.

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