--- Tran Thuat NGUYEN
<[EMAIL PROTECTED]> wrote:

> Phan Th�i Trung wrote:
> 
> >Co`n ba`i so^' 5 la` no'i ve^` GNUPG ca'c ba'c
> >co' the^? xem o+? ddi.a chi? gnupg.org, kho^ng
> >pha?i la` mo^.t u+'ng du.ng rie^ng le? ma` la`
> >ca? mo^.t co^ng nghe^. va` tra`o lu+u\.
> >
> Em kho^ng hie^?u "tra`o lu+u" ma` ba'c no'i la`
> ca'i gi`, em theo link 
> cu?a ba'c thi` tha^'y no' ghi nhu+ sau:
> 
> ---
> 
> GnuPG est un logiciel gratuit destin� �
> remplacer PGP. Il peut �tre 
> utilis� sans aucune restriction parce qu'il
> n'emploie pas l'algorithme 
> brevet� IDEA
>
<http://www.gnupg.org/%28fr%29/why-not-idea.html.fr>.
> GnuPG 
> est une application se r�f�rant au RFC2440
> (d'OpenPGP).
> 
> La version 1.0.0 a �t� publi�e le 7 Septembre
> 1999. La derni�re version 
> stable est la 1.2.6
> <http://www.gnupg.org/%28fr%29/download>.
> 
> GnuPG est un Logiciel Libre 
> <http://www.gnu.org/philosophy/free-sw.html>.
> Il peut �tre utilis� 
> gratuitement mais il est aussi possible de le
> modifier et de le 
> distribuer selon les termes de la licence GNU
> General Public License 
> <http://www.gnu.org/copyleft/gpl.html>.
> 

GNUPG la` chua^?n chu+~ ky' ddie^.n tu+? hie^.n
nay ddu+o+.c du`ng ro^.ng ra~i cho ca'c tho^ng
ba'o quan tro.ng (ma` kho^ng bi. phu. thuo^.c
va`o lua^.t pha'p cu?a My~ nhu+ PGP). Vi' du.
dde^? tho^ng ba'o mo^.t lo^~i ba?o ma^.t tre^n
securityfocus.com, ngu+o+`i ta su+? du.ng GnuPG.

No'i la` co^ng nghe^. vi` no' su+? du.ng ca'c
thua^.t toa'n tie^n tie^'n nha^'t, xua^'t pha't
tu+` PGP va` OpenPGP ma` la.i kho^ng vu+o+'ng
va`o lua^.t ba?n quye^`n pha't minh, do GNU
kho+?i xu+o+'ng. DDu+o+.c dda so^' ngu+o+`i su+?
du.ng va` pha?i ra^'t tin tu+o+?ng thi` mo+'i
su+? du.ng ddu+o+.c (cha.y tre^n Linux, Wins...).

No'i la` tra`o lu+u vi` ngu+o+`i ta dda~ ddi.nh
nghi~a ha(?n mo^.t nga`y ho^.i go.i la` "GnuPG
key signing party" va` vie^'t ta`i lie^.u Howto
dde^? hu+o+'gn da^~n to^? chu+'c nhu+~ng nga`y
ho^.i kie^?u na`y\. Hie^.n nay VN ddang ddau
dda^`u vi` chu+a ti`m ddu+o+.c co+ quan chu+'ng
thu+.c ddie^.n tu+? co' uy ti'n dde^? la`m chu+~
ky' ddie^.n tu+? (ddi.nh la^'y VeriSign) nhu+ng
GnuPG thi` su+? du.ng co^.ng ddo^`ng dde^? thay
cho cty chu+'ng thu+.c ddie^.n tu+?. NGu+o+`i ta
dda~ hi`nh tha`nh ma.ng lu+o+'i ca'c ma'y chu?
chu+~ ky' ddie^.n tu+? lie^n ke^'t vo+'i nhau
dde^? cho mo.i ngu+o+`i ti`m te^n cu?a nhu+~ng ai
dda~ dda(ng ky' chu+~ ky' ddt tre^n ma'y chu?
(keys server).

Va`i do`ng nhu+ va^.y tho^i chu+' to^i ko vie^'t
nhie^`u, mong khi na`o ba'c ti`m hie^?u the^m
thi` chu'ng ta cu`ng trao ddo^?i sa^u ho+n. To^i
so+. trong so^' chu'ng ta ko ai co' the^? ti`m
hie^?u he^'t ddu+o+.c li~nh vu+.c PGP vi` no'
qua' lo+'n va` phu+'c ta.p.

Ne^'u so sa'nh vo+'i ba`i vie^'t so^' 7 ve^` su+?
du.ng pha^`n me^`m dde^? ti'nh toa'n pha^n cu.m
cha(?ng ha.n, thi` y' nghi~a ba`i so^' 5 co' ve?
hoa`nh tra'ng ho+n nhie^`u\. (To^i ko co' y' co^'
ti`nh so sa'nh kha^.p khie^~ng).


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