Q : About WPA of WLAN - AES key material was not same data that i've entered.

Discussion in 'Windows Vista Drivers' started by Daum, Oct 15, 2003.

  1. Daum

    Daum Guest

    Q : About WPA of WLAN - AES key material was not same data that i've
    entered.


    Hello, everyone.

    I am developing a WLAN Ndis driver for WPA and use WinXP Wireless Client
    program as a WPA configuration.

    Currently, i'm testing "AES" encryption facilities at "Adhoc" mode
    configuration.

    I've configured Wireless network to a "Adhoc" mode, Network authentication
    to "WPA-None", and Data encryption to "AES".

    Finally, my device driver has received SetInformation of OID_802_11_ADD_KEY,
    but the key material was not same data that i've entered as a Network key
    using WinXP Wireless Client program.


    In contrast, the key material was same data that i've entered if i select
    "WEP" as a data encryption.

    Please, let me know why the key material was not same data that i've entered
    and give me some information about key generation algorithm if any.


    Thank you.

    //Daum
     
    Daum, Oct 15, 2003
    #1
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  2. Hi Daum,

    I am currently developing a client application, and I believe, that
    the key entered (if ASCII) gets encrypted as a 256 bits (32 bytes)
    value. This I believe is specified in the WPA Specification Document,
    that I got from wi-fi.org. It uses the SHA1 encryption algorithm.
    Look at Appendix F, also the IEEE 802.11i-D3.0 pdf, and the MS
    802_11_network_adapter_v21.doc.

    Hope this helps.

    Shane
     
    Shane Schunker, Oct 16, 2003
    #2
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