Foundations of Platform Security

Nate Lawson
Nate LawsonEngineer at Root Labs
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Foundations of Platform Security

  • 1. ! quot;# quot;$ % % ! quot;% && ' ( % )* & +
  • 2. ), ( ! quot; -. / 0 1 ( - / $ 1 ! 2# 34! 2 2 5 02 ) $ ! !
  • 3. ), ! quot;# quot; * &, * 6 quot; 7 . 8 2 % 8 ( # ! ! ( 2 - ) 2 / 9 )$ 95 04 : ; quot; !<
  • 4. = 1 1 ) , ! ) > !quot; quot; (quot; , quot; quot; ( quot; quot; ) !>, quot; )1 3 > quot; ,1 6 quot; quot; quot;(! , (
  • 5. (3 ) ( quot; > ! ! !quot; , quot; ( ! ! ! 6 quot; ( ! 1 6 ! !quot; ! $ ! :(
  • 6. ( ! (; ! ! , ) ( - / $ quot; ,quot; (quot; ( ) ! , !, ( ! quot; , ,quot; , ! )1 3 ) ! ; 4 3 1 ! quot; quot; ( ?
  • 7. ( quot; quot; quot; 1 6 quot; - ) / $ , 1, , ( >( - ) !/ $ , 1 1 ! 83 > (4 (! quot; 7 -1 ) 3 / 0 ( ! 3 1 ( ( 83 > quot; 4 quot; ) quot;! ?
  • 8. ) ( 2 7 , ( : , : ,, ( quot; !quot; !1 , 6 , !1 ( :quot; ! ? ) 1 @ quot; ( 3 ? ( quot; 1 quot; , quot;
  • 9. ( ) quot; ! , ) quot; - A quot; B/ 5 , ! ) , quot; ! quot; quot; 3 , 1 , 1 ) ( ! = quot; ,! , - A( quot; B/ quot; 1> ( , quot; 1 -%%2 / ! quot; 1 1> quot; ( C 1 > ( 1 ! D quot; quot; ! ! !
  • 10. ) ! quot; quot; , ; ( quot; !1 A9quot; 1 3 , quot; quot; quot;1 , B A (7 !quot; ! ( 1B 1, !quot; ! ) !>, (! quot; ; quot;1 quot; )1 3 > quot; quot; ! quot;
  • 11. = 9quot; quot; 1 3 ,! 1 ! > 1 ! quot; quot; 1 ! 7, 2 quot;> quot; quot; quot; quot; quot; quot; $ E quot; - /> 1 , 7- /> ( 1 , quot; % - C C 3 4! /%) : # )> quot; ! 1 , , ! ! D1 quot; - / 83 , ) - CC 7 C 3 4! /
  • 12. 3 quot; F ! =quot; - ,! ! 9 % / 5E 5 G 1 1 ! % # = E 5: = 1 G 3 !3 quot; F E > 1( ! quot; 0 quot; 1! 5E quot; ( 1 1 G A , > 5 $ ! quot;1 quot; BH ! 6 H
  • 13. :quot; ; ! ! G = 1 , * - / = quot; ! 1 = = , quot; 1 , ( 9quot; 1 3 3 2= : *3 9 5
  • 14. # > 1 04 1 3 , -quot; 1% , / 3 quot; 2= quot; 3 3 1C ! 4 quot;quot; : quot; - 4, !/ 3 3- , quot; / 9 1 5 quot; ( ! quot; quot; : E , # ) 3 4 1 8 3 5 quot; 1 > > quot; C C % %!C
  • 15. > quot; quot; quot; D = ! ! 1 ! ! ! ! 3 , - % / 1 ! 2 1 ! quot;quot; ; ,3 3 , 1 ! G! !quot; D quot; (/ - - / @ > G quot; ;1 1 quot; quot; 1 ! quot; D -%% ! $ 2 /
  • 16. quot; -/ 9 ! quot; 7 C !7 quot;quot; 4 $ >( , ! 3 7 C !7 1 ! 3 ) 7 , ( 1 , 1 3 , > ( quot; ! 1 $ A< $ 3 quot; quot; quot; ! 3 quot; ,, ( I quot; , %9quot; D quot; ( !B - %) 0! D ! / = ! (> quot; =
  • 17. >D 2 ! A9quot; ) quot; D BH G @ quot; ) H +
  • 18. >D ! quot; $C$ 2 J2 quot; ! $ quot; - ( / , - !/ quot; (/ - - / !-/ quot; - / 3 1 @ > quot; 3 , 3 ! ! D ; quot;quot; > % %C > CC D C ! % quot;
  • 19. D quot; - / ! 1 2 - / ! , 7 quot; ! ; quot; 1 -K /4 L / - - A M B/H N #D +4, quot; quot; !1 - +J / L 0 # 1 ! 0 quot; ! ( quot; 2 ? !
  • 20. quot; ; ! > ! 1 , $ quot; ; 1 1 ( ) quot; 1 , , ) 41 > 1 quot; ! , 3 ! =quot; ! quot; 1 ! 1 , quot; # , > quot; ( ! ? ) > 1 !quot; quot; A) quot; $ ; quot; ! quot; (/<B - G quot; ,! quot;
  • 21. O ; ! quot;
  • 22. - / 0 ( ! ( , ! quot; # , ! quot; quot;1 quot; , > ) > !quot; quot; , quot; quot; ( quot; quot; ) !>, quot; )1 3 > quot; ,1 ! , quot; ; !