Re: Module Identifier

From: Crispin Cowan (crispinat_private)
Date: Wed Jun 19 2002 - 14:47:23 PDT

  • Next message: Chris Wright: "Re: Module Identifier"

    Chris Wright wrote:
    
    >* richard offer (offerat_private) wrote:
    >  
    >
    >>A suggestion by David Wheeler was to use the first 8 chars of an md5sum, so
    >>I'm using
    >>
    >>/* sys_security modid 
    >> * Generated from
    >> *      echo "SGI Trusted Linux" | md5sum | cut -c -8
    >> */         
    >>#define SYS_SECURITY_MODID 0xc4c7be22
    >>
    >>
    >>This doesn't reqire a web infrastructure and yet is less susceptable to a
    >>human non-random number generator....
    >>    
    >>
    >Yes, I prefer this method.  You could also use the module name.
    >
    I don't believe we can get people to consistently apply the same input 
    string to md5sum. The likely result is that module numbers will just be 
    pretty good 32-bit random numbers, but the 32-bit random numbers will 
    not be obviously derivable from the module's name.
    
    This is likely ok: 4 gig is a big space for the world of LSM modules :) 
     But I still believe that some form of documentation of "this modules 
    number is 0x2989874" somewhere. But if we're just counting on 32-bit 
    random numbers to be unique :) then we don't need a central registry.
    
    So I yield: Chris has better things to do than create a registry. There 
    goes my plans for wealth through auctioning eleet module numbers :)
    
    Crispin
    
    -- 
    Crispin Cowan, Ph.D.
    Chief Scientist, WireX Communications, Inc. http://wirex.com/~crispin/
    Security Hardened Linux Distribution:       http://immunix.org
    Available for purchase: http://wirex.com/Products/Immunix/purchase.html
    
    
    
    _______________________________________________
    linux-security-module mailing list
    linux-security-moduleat_private
    http://mail.wirex.com/mailman/listinfo/linux-security-module
    



    This archive was generated by hypermail 2b30 : Wed Jun 19 2002 - 14:48:27 PDT