decrypt encrypted files: how to make that .cer file

Posted on 2004-10-23
Last Modified: 2012-05-05
hi all,
i need create a cer (certificate file .cer) to send to someone  so he will be able to decrypt encrypted files on a network drive
can someone tell me where and how i must create a certificate for DECRYPTION
tks a lot
Question by:karel_jespers
    LVL 65

    Expert Comment

    Hello karel_jespers =)

    Read here, may be u can get some idea :)
    LVL 6

    Author Comment

    hi sheharyaarsaahil,
    on the xp when i install the pfx the client can decrypt the files
    when i install the cer for another client he cannot decrypt the files

    why does the public key install (cer) does not allow the client to decrypt a files
    LVL 65

    Expert Comment

    ok karel.... u are saying that u exported the .pfx and then exported .cer
    then u went to client system and run .pfx file and then added the .cer !!
    this worked !!

    but when u did the same on another system, it didn't work..... is it right or am i going to south here :-?
    LVL 6

    Author Comment

    hi sheraryaarsaahil,
    what happens:
    using the cipher command i created a pfx (privat key) and cer (public key)

    when i tested both key by installing them an then trying to decrypt the files
    it worded after installing the pfx

    and when installing the cer on another system , i cant decrypt the files

    LVL 65

    Accepted Solution

    look karel, there is some confusion, either u are not following them or im failing badly to follow =\

    they have said, on first installtion, make a .pfx file and then a .cer
    then goto the second installation and then run pfx. file (import Wizard)
    and then add .cer in MMC manually
    then "cipher /u" to update the encrypted files recovery agent info
    and now it shud work !!

    are u sure u are doing all this and still failing ??
    if so, then can u have a dual boot system around u, where u can test it(as they have done it on a dual boot system)
    and verify if it works for daul boot and just failing with network systems,,,,, or it just refuses to work in anyway =\
    unfortunately i dont have a dual boot system, otherwise i wud surely gonna do this :-/

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