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  1. #1
    Registered User
    Join Date
    May 2009
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    11

    writing information to an internal card for card emulation

    hey,

    I am currently working on an application where I need to save information (hardcoded strings for now) to an internal tag on the mobile phone.
    I am using a nokia 6131NFC phone and tried the example codes to use the secure element and to write to an internal tag. However both of them gave an internal security exception.

    The goal of my application is to read information from a tag (which is no problem) writing part of the information on an internal tag in order to emulate it to be read by a desktop application.

    Any help on how to create and write information to an internal tag would be greatly appreciated coz i have been looking around for information on it but didn't found any descent information/example.

  2. #2
    Registered User
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    Feb 2009
    Location
    Hagenberg, Austria
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    121

    Re: writing information to an internal card for card emulation

    Hallo,

    Quote Originally Posted by joery_vn View Post
    I am using a nokia 6131NFC phone and tried the example codes to use the secure element and to write to an internal tag. However both of them gave an internal security exception.
    Did you sign your application? In order to access the secure element/the Mifare area your application needs to have a valid signature.

    br,
    Michael

  3. #3
    Registered User
    Join Date
    May 2009
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    11

    Re: writing information to an internal card for card emulation

    Quote Originally Posted by mroland View Post
    Hallo,



    Did you sign your application? In order to access the secure element/the Mifare area your application needs to have a valid signature.

    br,
    Michael
    hmmm yeah you are prob right i found something returning an not signed message. Any idea how i can sign the application?

  4. #4
    Registered User
    Join Date
    Feb 2009
    Location
    Hagenberg, Austria
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    121

    Re: writing information to an internal card for card emulation

    Hallo,

    Quote Originally Posted by joery_vn View Post
    Any idea how i can sign the application?
    Unfortunately you have to buy a code signing certificate. Java ME code signing certificates that work with Nokia 6131 NFC are available from VeriSign and Thawte.

    br,
    Michael

  5. #5
    Registered User
    Join Date
    May 2009
    Posts
    11

    Re: writing information to an internal card for card emulation

    Quote Originally Posted by mroland View Post
    Hallo,
    Unfortunately you have to buy a code signing certificate. Java ME code signing certificates that work with Nokia 6131 NFC are available from VeriSign and Thawte.
    br,
    Michael
    okay thx for the information, i will request a certificate since i am a student and the school should forsee it

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