Freedom of speech_0

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  • 1. Freedom of Speech I n te rn e t

2. Freedom of Speech ;& ; 3. 14/03/2012 Freedom of Speech 3 4. = + : , . 2 . : . : . ! = 14/03/2012 Freedom of Speech 4 5. < 1 9 0 0 : . . : 3 PAX R O M AN A -(e n c ryp t)--> S D A U R P D Q D 1 9 0 0 -1 9 5 0 : E n ig m a 1 9 5 0 - : / 14/03/2012Freedom of Speech5 6. / . . . - .14/03/2012Freedom of Speech6 7. ( S ec r et K ey C r yp t og r a p h y) . (D E S ,AE S ,R C 4) ( P u b l i c K ey C r yp t og r a p h y) ( ) ( ) . (R S A,D -H ) ( H a s h es ) (o n e -w ay) . (M D 5 ,S H A1 )14/03/2012 Freedom of Speech 7 8. (S K C )14/03/2012Freedom of Speech8 9. (P K C )14/03/2012 Freedom of Speech 9 10. P K C / 14/03/2012 Freedom of Speech 10 11. P K CD i ffi e -H e llm an ( ! ) h ttp s ://w w w.yo u tu b e .c o m /v/3Q n D 2 c 4X o vk : h ttp s ://tw i tte r.c o m /# ! /arto fth e p ro b le m14/03/2012Freedom of Speech11 12. P re tty G o o d P ri vac y Web of Tr u s t / . . . C er t i fi c a t e A u t h or i t i es / . = + C e rti fi c ate u th o ri ty + . I n te rn e t ( . . H T T P S , m ai l). .14/03/2012 Freedom of Speech 12 13. Freedom of Speech I n te rn e t (W i ld We s t)14/03/2012 Freedom of Speech13 14. Freedom of Speech We bE -m ai l I n s tan t M e s s ag i n g14/03/2012 Freedom of Speech14 15. Freedom of Speech W E B (H T T P ) (p o rt 80) . ( . . U s e rn am e s /Pas s w o rd s )14/03/2012 Freedom of Speech 15 16. Freedom of SpeechH T T P S (H T T P S e c u re ) c li e n t (p o rt 443) s e rve r s e rve r c li e n t O s e rve r c li e n t ( , C e rti fi c ate Au th o ri ty, ) c li e n t / C e rti fi c ate Au th o ri ty. C A . c li e n t 14/03/2012 Freedom of Speech16 17. Freedom of Speech W E B (H T T P S ) .14/03/2012Freedom of Speech 17 18. Freedom of Speech H T T P S (H T T P S e c u re ) C e rti fi c ate Au th o ri ty . b ro w s e rs . ! ! . We b m ai l E -b an k i n g ( , , ) S o c i al N e tw o rk i n g s i te s p lu g i n s :h ttp s ://w w w.e ff.o rg /h ttp s -e ve ryw h e re b y E le c tro n i c14/03/2012Freedom of Speech 18 19. Freedom of Speech H T T P S H T T P S S e rve r. c li e n t c e rti fi c ate s . s e rve r ? C e rti fi c ate Au th o ri ty s e rve r ? H T T P S (n o tari e s ) C e rti fi c ate Au th o ri ti e s . p lu g i n s : h ttp ://c o n ve rg e n c e .i o / b y M o x i eM arli n s p i k e14/03/2012 Freedom of Speech19 20. Freedom of Speech E -m ai l (S M T P /P O P 3/I M AP ) m ai l s e rve r , ( H T T P S ) / SSL STARTTLS SMTP 25 465 POP3110 995 IMAP143 993 m ai l c li e n ts ( * ) : N ever : T L S , i f a va i l a b l e: , o c li e n t s e rve r14/03/2012Freedom of Speech 20 21. Freedom of Speech T h u n d e rb i rd14/03/2012 Freedom of Speech 21 22. Freedom of SpeechI n s tan t M e s s ag i n g To M S N M es s en g er /Ya h oo! M es s en g er c o n n e c ti o n s . !14/03/2012Freedom of Speech 22 23. Freedom of SpeechI n s tan t M e s s ag i n g S k yp e . . / . p latfo rm s s er ver -s i d e l og g i n g ( F ac e b o o k ). G o o g le Talk * G m ai l S e tti n g s C h at N e ve r S ave C h at H i s to ry I M p latfo rm s XM P P (Jab b e r, G o o g le Talk * ). O p e n s o u rc e /O p e n S tan d ard s .14/03/2012Freedom of Speech23 24. Freedom of SpeechI n s tan t M e s s ag i n g op en s ou r c e c l i en t s P i d g i n (L i n u x , B S D , W i n d o w s , O S X , . ) E m p ath y (L i n u x , B S D ) M i ran d a I M (W i n d o w s ) Ad i u m (O S X ) g ro u p c h atti n g I R C ( e n c ryp ti o n p lu g i n s )! H S I L C .14/03/2012Freedom of Speech 24 25. Freedom of Speech P i d g i n G o o g le Talk /Jab b e r C o n n e c ti o n S e c u ri ty:R e q u i re E n c ryp ti o nU s e e n c ryp ti o n i f avai lab leU s e o ld -s tyle S S L(d i ffe re n t p o rt: 5 2 2 3)14/03/2012 Freedom of Speech25 26. Freedom of Speech 14/03/2012 Freedom of Speech 26 27. Freedom of Speech E -M AI LI n s tan t M e s s ag i n g14/03/2012Freedom of Speech27 28. Freedom of Speech E -m ai l 2 : S /M I M E C e rti fi c ati o n Au th o ri ty / . PG P ( ) P G P .14/03/2012 Freedom of Speech28 29. Freedom of Speech E -m ai l S /M I M E S e c u re /M u lti p u rp o s e I n te rn e t M ai l E x te n s i o n s / .C las s 1 : F ro m -ad d re s sC las s 2 : / c las s 1 :C om od o: h ttp s ://s e c u re .c o m o d o .c o m /p ro d u c ts /fro n tp ag e ?are a= S e c u re E m ai lC e rti fi c ateS tartS S L : h ttp s ://w w w.s tarts s l.c o m /?ap p = 1 2C ac e rt: h ttp ://w w w.c ac e rt.o rg /14/03/2012 Freedom of Speech 29 30. Freedom of Speech E -m ai l S /M I M E . e -m ai l . e -m ai l . e -m ai l C A.14/03/2012 Freedom of Speech30 31. Freedom of Speech S /M I M E T h u n d e rb i rd E x p o rt C e rti fi c ate B ro w s e r ( F i re fo x ) To o ls O p ti o n s Ad van c e d E n c ryp ti o n Vi e w C e rti fi c ate s Yo u r C e rti fi c ate s B ac k u p ( p as s w o rd ) M as te r Pas s w o rd ( T h u n d e rb i rd ) Tools Options Security Passwords Use Master Password e x p o rte d c e rti fi c ate Tools Options Advanced Certificates View certificates Import c e rti fi c ate Tools Account Settings ( account) Security Digital Signing/Encryption ( certificate)14/03/2012 Freedom of Speech 31 32. Freedom of SpeechP re tty G o o d P ri vac y (P G P ) : P h i l Z i m m e rm an ( ) 1 991 : o n li n e (B B S ) C yp h e rp u n k s : m u n itio n s e x p o rt w i th o u t a li c e n s e 1 993 U S e x p o rt re g u lati o n : > 40b i t = = M u n i t i on ! ( : ) (M I T ) (P G P S o u rc e C o d e an d I n te rn als ) 1 s tAm e n d m e n t (F re e d o m o f S p e e c h ) . : Vi ac ryp t/P G P 1 99614/03/2012 : Freedomn P G P 1 997O p e of Speech32 33. Freedom of Speech P re tty G o o d P ri vac y (P G P ) . k e ys e rve rs i n te rn e t. . . K e ys i g n i n g Parti e s !14/03/2012Freedom of Speech33 34. Freedom of Speech P G P : p l u g i n en i g m a i l T h u n d er b i r d ( S ea h or s e, G PA , . )14/03/2012Freedom of Speech34 35. Freedom of Speech P G P : g p g --g e n -k e y (T yp e ): D S A an d E lg am al (K e ys i z e ): 2 048b i ts (E x p i ry): 3 /E -m ai l ( P a s s p h r a s e) ! ! g p g - li s t-s e c re t-k e yss e c 2 048D /1 4 F B 5 0 1 A 2 01 2 -03-04 [e x p i re s : 2 01 5 -03-04]u idJo h n F o u fo u to s < jo h n @ fo u fo u to s .c o m >s s b 2 048g /7 E 301 5 9E 2 01 2 -03-0414/03/2012Freedom of Speech 35 36. Freedom of Speech P G P / : g p g -s e arc h /e m ai l ! ! h ttp ://p g p .m i t.e d u g p g --re c v-k e ys AB AC AD AE g p g -i m p o rt _ : g p g --li s t-k e ys14/03/2012 Freedom of Speech 36 37. Freedom of Speech P G P :gpg -a -r foobar@foufoutos.com e text.txt a: r: e : te x t.tx t.as c :gpg -a -r foobar@foufoutos.com es text.txt s : 14/03/2012 Freedom of Speech37 38. Freedom of Speech P G P :e c h o . > text.txtg p g -a -r fo o b ar@ fo u fo u to s .c o m -e s te x t.tx t You n e e d a p assp h rase t o u n lock t h e se cre t key for u se r: " Joh n Fou fou t os < joh n @fou fou t os.com > " 2 0 4 8 -b it DSA key , ID 1 4 FB5 0 1 A, creat e d 2 0 1 2 -0 3 -0 4 g p g : ABACADAE: Th ere is n o assu ran ce t h is key b e lon g s t o t h e n am e d u se r p u b 2 0 4 8 g /ABACADAE 2 0 1 0 -0 6 -2 5 Tak is Fou karak is < foob ar@fou fou t os.com >Prim ary ke y fin g e rp rin t : 8 A2 3 C5 BE A5 1 8 5 7 5 E 2 B2 1 8 1 8 D 5 AC0 1 BC8 ABAC ADAE It is NOT ce rt ain t h at t h e ke y b