- 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
[email protected] e text.txt a: r: e : te x t.tx t.as c :gpg -a
-r [email protected] 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 e lon g s t o
t h e p erson n am e d in t h e u se r ID. If y ou * really * k n
ow w h at y ou are d oin g , y ou m ay an sw er t h e n ex t q u e
st ion w it h y e s. Use t h is ke y an y w ay ? (y /N) y14/03/2012
Freedom of Speech38 39. Freedom of Speech P G P :gpg -d
text.txt.asc d : 2 0 4 8 -b it ELG-E ke y , ID ABACADAE, cre at ed
2 0 1 0 -0 6 -2 5 g p g : e n cry p t e d w it h 2 0 4 8 -b it
ELG-E ke y , ID ABACADAE, cre at e d 2 0 1 0 -0 6 -2 5 " Tak is Fou
karak is < foob ar@fou fou t os.com > " . g p g : Sig n a t u
r e m ad e Su n 0 4 Mar 2 0 1 2 0 3 :0 0 :3 3 PM EET u sin g DSA ke
y ID 1 4 F B5 0 1 A g p g : Can t ch e ck sig n at u re: p u b lic
ke y n ot fou n d *14/03/2012 Freedom of Speech 39 40. Freedom of
Speech P G P : gpg -a --output mypublickey.asc --export 14FB501A
output: export: : gpg --sign-key ABACADAEsign-key: gpg -a --output
ABACADAE.signed-by.14FB501A.asc --export ABACADAE
ABACADAE.signed-by.14FB501A.asc k eys er ver : gpg -import
ABACADAE.signed-by.14FB501A.asc gpg -send-keys
ABACADAE14/03/2012Freedom of Speech 40 41. Freedom of Speech P G P
e n i g m ai l E x te n s i o n T h u n d er b i r d W i n d ows /L
i n u x/B S D /M a c O S X L i n u x /B S D /M ac O S X g p g w i n
d o w s g p g 4 wi n : h ttp ://w w w.g p g 4w i n .o rg / E n i g
m ai l T h u n d e rb i rd : To o ls Ad d -o n s (s e arc h ) E n i
g m ai l L i n u x :e n i g m ai l14/03/2012Freedom of Speech41 42.
Freedom of Speech P G P e n i g m ai l :OpenGPG KeyManagement
Generate New keypair14/03/2012Freedom of Speech42 43. Freedom of
Speech P G P e n i g m ai l account:Tools Account Settings OpenPGP
Security14/03/2012Freedom of Speech 43 44. Freedom of Speech P G P
e n i g m ai l E-mail:OpenPGP Sign/Encrypt Message14/03/2012Freedom
of Speech44 45. Freedom of Speech P G P e n i g m ai l E-mail: (
)14/03/2012 Freedom of Speech45 46. Freedom of Speech P G P e n i g
m ai l E-mail: ( )14/03/2012 Freedom of Speech46 47. Freedom of
Speech S e ah o rs e (L i n u x ) / / 14/03/2012 Freedom of
Speech47 48. Freedom of SpeechS e ah o rs e 14/03/2012 Freedom of
Speech 48 49. Freedom of Speech G N U P ri vac y As s i s tan t (L
i n u x /W i n d o w s ) / C lip b oard14/03/2012 Freedom of Speech
49 50. Freedom of SpeechO ff-T h e -R e c o rd M e s s ag i n g P
lu g i n I M (P i d g i n , Ad i u m ) I M : - (* ) (* ) Pe rfe c t
F o rw ard S e c re c y , 14/03/2012Freedom of Speech 50 51.
Freedom of Speech O ff-T h e -R e c o rd M e s s ag i n g
OTR14/03/2012 Freedom of Speech 51 52. Freedom of SpeechO ff-T h e
-R e c o rd M e s s ag i n g OTR14/03/2012Freedom of Speech 52 53.
Freedom of Speech ! !14/03/2012 Freedom of Speech 53 54. Freedom of
Speech H T T P S -E ve ryw h e re -s h i r t E F F. or g P G P (* )
k e ys e rve r. e m ai l k arg i g @ vo i d .g r p u b li c k e y
attac h m e n t . li n k s e m ai l. , . . ( e m ai l w i k i )
.14/03/2012 Freedom of Speech54 55. Freedom of Speech : T h e C o d
e B o o k: T h e S cie n ce o f S e cre cy fro m A n cie n tE g yp
t to Q u an tu m C ryp to g rap h y (S i m o n S i n g h ) : P
ractical C ryp to g rap h y (N i e ls F e rg u s o n ,B ru c e S c
h n e i e r) H an d b o o k o f A p p lie d C ryp to g rap h y (A.
J. M e n e z e s , P. C . van O o rs c h o t, S . A. Van s to n e )
: C ryp to n o m ico n (N e al S te p h e n s o n )14/03/2012
Freedom of Speech 55 56. Freedom of Speech h a c k er s p a c e. g
r dln.gr :) EFF14/03/2012 Freedom of Speech56 57. Freedom of Speech
/ 14/03/2012 Freedom of Speech 57
