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Thread: Netwpin

  1. #1
    Regular Contributor
    Join Date
    Mar 2003
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    63

    Netwpin

    Anybody has any idea how to construct the "Key" to SHA-1 when using the NETWPIN menthod?

    For example:

    530 01 1234567890

    What is the KEY to SHA-1?

  2. #2
    Registered User
    Join Date
    Sep 2003
    Posts
    46
    Hello,
    finally I got NETWPIN work.
    It is 8 bytes in total.
    We do not have to use the byte length.

    In my case, IMSI have no relation to the MSISDN tel. number,
    only the first 3 bytes which are the operator code.

    The rest of the bytes (5) I have got them with a SMARTCARD reader, asking for the IMSI.

    Also this bytes have no relation with the printed numbers in the SIM.

    I repeat this is my case, it may vary in other countrys, sims, ....

    As page 11 of provisionign series 40 says,
    settings are received without being asked for a pin, but you have to delete all settings first;
    and only one document can be received this way.

    This is very restrictive, and I think I am going to use USERPIN method best.

    regards, hope this help you.

  3. #3
    Regular Contributor
    Join Date
    Mar 2003
    Posts
    63
    Hi Vmoreno1972,

    Can you give an example?

    1. What is the IMSI number?
    2. Which are the 8 bytes used as key?
    3. Do you enter the 8 bytes as ASCII or Hexdecimal?

    Thanks

  4. #4
    Registered User
    Join Date
    Sep 2003
    Posts
    46
    Hi,
    I thought imsi was:
    operator code + telephone number.
    but it is not.
    I do not know what is imsi, i just read id from sim.


    > Which are the 8 bytes used as key?
    the IMSI read from sim, lust like is is shown in screen by smart card reader. it is in hex.

  5. #5
    Regular Contributor
    Join Date
    Mar 2003
    Posts
    63
    Hi vmoreno1972,

    I suppose you use "HashCalc" to derive the MAC.

    Do you enter the key as a text string or hex string in HashCalc?

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