Bảo mật Wimax Quản Lý Khóa Riêng pdf
Bạn đang xem bản rút gọn của tài liệu. Xem và tải ngay bản đầy đủ của tài liệu tại đây (96.52 KB, 7 trang )
Bảo mật Wimax: Quản lý khóa riêng
!"##$%&
!"#'
()&$*+$&&++),+%
(-./
('01
((-&!234&
(564&7
(8-90
5)&$*+$&&++),+%
5'01:&
5;<&=34&#>#
8?@&
A*B
Giới thiệu về WiMAX
CDB7E7+F+#+&/$GE&++%%HIBJ.&%1?@
9K7L/M%4N$BK!3O&!27P!L
&Q&K3N7R$"9!N<C%H,OB?S3&&TU$S!2
&T#VR # #T&W4##XQ$B !Y2&FZZZ[\AID]^T
3$B9_O%1#9SIS3&N&W
-]^FZZZ[\A`\\abTW /Ic\\;<d&!S`!&!SC))H3S
&%1$#K3N7R$&KPCeHI9K]/&Cee%HFZZZ[\A`\\7X
K!LI\`AAfgT&4Sh!4IXijCkleHmN-]^[\A`\\5ab
!?OW /c\\5"L9!n!S3d.&"7X%P`fgT&4Sh
IXi3NjCkleHmN[\A`\\5No%@PI%1#pO#
D]^!BN?qK3N7R$1!LT3SJ?FZZZ[\A`\\5I
3c$r7+97+WQ&-]^ FZZZ[\A`\\8a(bT!?OW
/9c\\8s$!<#R&!&X%PCeltuHTFZZZ[\A`\\8 #!X$!.
_Oi?N!?O#>#I3N!?O#>#D]^!6!?O
]]IN%1$#/cNL4?ILBX7N3N
V0I?q%v7
?h&iTD]^.&W9!< w"#!3SN
?q$#C'HI#xC)fyH)fy_O9&9Q&K7L!LQ&
L#K#R/2X%PCr!BAAfgHT/&o%1&$!23]7NT&!NX
%PTI&!Nq&k#'IQ$!<!nU%1!&7K"B/<"#
x'0cV.&'I%J#WB#/&!XT+$KT$]X/cNTQx?3B
PTz?/N?q3BP
-$NI?3BP- 7<r#0]'T
/&o3BP7<TI/!o3BP&eeIe#'Lee4S4
3BP!Be!V #7<!B?q%v7*BP!?OW9!<
/MA`/C'Fu%H?K!3O7N3BPI%1w#!{seN
?q3BP3N7R$1!L?$#'Q$!<?3BP7<
-%P/&#.&#'T#7<C'eH3BP#'9#]e&!4#R
K97<Ceu|%Hr9&0#]T#'e]3B9eu|%#pO#!<oCetFuH
'I'Fu,&039T?-TZ++TIF)T#'e!<d&9N%P#p
O#u!4T#X.&#'C')eH3NXS!<7K.&4&$#RU
/ 3}NDI!Br'e#&$&7k#')e.&'9 #0
cT/&o$#T!<<7NTIB#3BPI/i-&!2T'eu|%
Ceu|%H9'e%39
"#/J!Xr34&+01T34&B#Tz?ND6
4&-&!2!@<7&0'C)u|%H)fy1DB#,IPWvxN?q1
!L3N7R$T=!<L/L/I@BQx34&f&I#X"#/
I&0!44I&0Qx34&]C)*H&0!4464&7Q&
T3&0C)*H!/#R#P34&.I#>#$#&eeIe
!BP!L$#/cN!LT#/ #ee]I/e3~ N
II$2Q&@B&IT!n/%@!oQx]?q]
/&I&I7<N90%1&I(N)*
,+%C)*HT@B&I@/$5DB)*,+%C)*HT
L@B/&&&•01:&83B
Bảo mật trong WiMAX.
Những vấn đề ở lớp physical
f&UR$mV"#)fyI•&I%&/€&4!?O3m
K@%N% 3]'9NDIB/<X!S1R$m7m
7I4!?O*c#oU3/<€&!?Oc]/M9cN% U
&$Ic/cN.&UNQ&93d$?$Xn#2
_1DB#-]1BT?q&hL9$#94N% T&+#94!LO&T
n&+4!LO&-V•& 7m7•#9/"B/<k?{Bz
w#cnB/<Im€&7m7I#9I7•!<&=T7!443NR$&L
9!L!93S]?q7pIP
e&/?q/<3VK3q&JID]I9G&+%n9
#XG&+%.&e&/4S!?OK/~/M/Lh!3Se&/n4D
Qx!VI&9K/i?q3+.&o7J!Bee%4S
hh%&/T>#4#9K‚&3+TILeeQ&!4I/cN.&?q/<
N-0IT39ee%IcP!LWvx7.&Vh/M9hhe&//"
!?q#3.&ee%39*NP?K9:].&•&+T
%&/+XND!3S#]7<!wI!S#9%m!w3q&
- Nr%&/II9!KTIIc77•ƒ-+7„%1/ ?q"W&+
!<7KI7•ƒ%&/&7%&/+%
Những vấn đề ở lớp MAC
)u|CMessage Protocol Data UnitHI7!?O$#')u|%v
7:39&!S&ND39&:.&)u|M"'
+&7+T%++7&&TI'…'C'$…+77&$'+3H*N4"K" w0&'
+&7+0&ND664&I!nI')u|)&$&7
- 9N/9Qx'!?O"I3NX64&!SK!3I!nT
%J#WB#TI&9''94DQx&+)u|?i%Y3N64&
'+&7+%I4DQx'TM!VI&9P39&"#
'"$T&3+4S+>3]TI3N#K9NDr4DQ
x'3N!?O64&+L4D3N!?OQxI$w#Dn/B!?O
#KT Nee%z?PX%101&@†?"I%v
7B/<…eC…+%`e&`7+&H‡8\ˆ0%P'0%P!?O%v7W9
1I7•ƒQx-B/<3N134&+LrK
‰Lc?!+7h&!B7<.&-B/<4S%v7!<&=
#X0!S!c3VB/</M9&4DQx&ILXIN
&3+4IeTIee%]!BePp97<!?O #/"eT
3BQ ?O7</<%w&$3NS!9#0!?O7<
%v7!&$##R&+q&C-uH;SLc?&‚&3+#
$3eI#9-V.&&‚&3+#J!B!wee%I#K@U
e-r!47$!?O&&D+%%T&‚&3+!4&•IL
#]7<D+%%!?O ##9!BO##9#4&eL9INTI7•UeV
W991:&I3ccLc?
Privacy Key Management Protocol Version
Thủ tục bảo mật.
!+%&./)*M/!%1$#&I3BP?i
(T01I/?!XD]?3$7&&*ee3BPITe%YW9ee/M
9&!2934&*ee!?OW9i3BP!?OB#Te!c3VeeIKI
34&!?O7p!S64&7&&$Q&3BP
Chứng thực
g&DIQ9i!SW9c?ee/"eee/J!Xg&D/M9
"L4DN/9!BeT0&NDI%W eenI@Q&Qx4-+%&
&+D&DI4DN/9T&g&D$]X4DI$#!?O"&$#0
!Be$]X34&01sw&i01!?ONi5-Q9i
01T^W9!<Š%+$&%%`&D‹!S=„ND&I&e
IeeCnee%H7pe7KeFu1 IND&&IeIee%_O
/&o64&I634&
,Q9i01Tee!?OeW9#V7<Tr!R$97<$
7&&.&]/&!?O #-&!234&*TeW9!<c?.&eeI97<ee
!?O$#-r3eW9eeiee!?O/PK&‚&3+reeTIIee$
#O##9#)*%1?7:.&8\ˆW91%Pp64&…e#/`
3+$!S01
Trao đổi khóa
'4 83S34&!?O%v7!S/*T3+$+$#D3+$C*Z*HT7E3
&%GD`/&%+7+%%&+&+D&D7+Cf'H3+$T#3f'3+$T&7&GŒ+$#D
3+$C-Z*H*K!LweW91V&eeIeT*%v7/3BDB#&!2
34&)*
[`/*7p!S%&[`/*Z*/"e*Z*7p!S64&I#R#P-Z*
uE3f'3+$I#3f'3+$ #7W91.&/D#R#P34&
re!Beeree!Be?@0'&!?O%&r*?@1?*Z*s9i&!2
-Z*]7E3f'3+$I#3f'3+$!S"4D&I
Mã hóa dữ liệu
-?3III&!234&T7&eIee%v7-Z*64&64&
7D]^3P%P&$!2CuZe`''HI/L64&?q)u|#&$&7'+&7+
:'…'!3N64&M!&7K7<k#&I#9%r)u|!?O3S&e
3BP!wI+3"KCF,H)u|F,!?O%&/"l…eF,?q!o/L]
)fyG&++&7+uZe`''64&#&$&7P.&)u|/M9%&)u|F,IW9
1-Z*%;3S64&CZ'HI?q.&'+&7+9/M!S=#&$&764&
)u|-i134&64&CZ*eH`/%=-Z*!?O7p-?q'…'!?O#~&
%1&$!2"#&$&7I'+&7+
Thách thức
)*%v7Ni+‡%++Qx34&eeI+I@~34&IeI
%++@q-90!BrW91L?)*!/Iee=!?O7$
L34&!?O #/"e,V7eW9eew7m&03N#I%&3T!
I$4d&Iee3NS/B!?OeTI&3+4SR$Q]h
P)*w#ee/B!?OeP@/M9%v701:&!?O
„@"5
Privacy Key Management Protocol Version 2
Chứng thực lẫn nhau.
s9i01&eeIeT+/?
eW9c?.&ee
eeW9c?.&e
e #*T*Z*I3+$01ee
e #W9eec?ILU.&e%!BeeoKoK3+$6
3BP3BDB#
Địa chỉ khóa cho phép
)*3+$+&$W9!<K34&I!?O%&34&s9i01
ƒ&34&o-r34&P3+$+&$%Y!?O%v7!S%&34&39!SQx
4DI•I$]"34&64&- )*3+$W W0rN0uA*ut
)*_O01:&#>#…e`/&%+7I01Z)`/&%+7*!?O%$
&/"eIeeTr)*Q&.#>#…e`/&%+7I)*Q&.01Z)`/&%+7
-?3II01:&T#+#&$&g&D3+$C#+`)*H!?O6
4&#/3+$.&ee01I!?O#9re!Bee#+`)*!?O7p!<&='.&
eeIK01CeFuH%&rA\`/)*
*S01Z)TA\`/Z)+$3+$CZF*H!?OUr#+`)*-+&%+
%+%%3+$Ce*HI8`/TI34&r&!2Z)34&I$/B!S01T1I
U?CHeeIe!?O%$&r#&E%+&%+3+$C)*H/M9JA\/%e*_/]
e&31Z)`/&%+7INTee&$eKDB#!I#99V%9
139?IŠW9Z)%&Z)‹TeeIe1&XZ)e&3IIZ)X!X
D]Tee/J!XZ)X&kX&INieIee!%&*
Bảo mật trong WiMAX trong tương lai
n7p&0)*4DB/L/I!?O #/"!n
U?I01:&sx34&KT?4•_~&$V
D]^!4
-0 TN/9Qx'$3N!?O64&TND4S/<!9
J#,V7T&‚&3+4S+ND&eeIeTnN/9QxTW9K/M
VL7N/9QxTI&3
-0&T@BQxi&34&#L]`/Z*e]W9!<-Z*!&!?O%v
79<Ir(!B\h34&05T7!447m7I/< N/"W+I%v7K
-Z*%
-0/&TVuZe`''%v7:]F,!B%164&/T3
)*I)*F,!?O%&r3BQl….&eŽ%F,I!o/L.&)fy'90I$4
S!9!?OI%$$B!%1&I7f@&TuZe`''=&IL
K7uZe`''%Y &I%&364&(%v73P7p-Z*r3P
0&A5/%_-Z*Iq&%PTuZe`''3NS&I7@q&%P
.&-Z*IA5•(/%
n397</cNL%v7]T]Q&!B/%Y!?O$
%,V7T3SJ?7m/< N@3S)),_7+43c$
??O!B7+3/]T !?wX!LI#>#9w90%1
]?.&?q%v7I&9P#0K#f@&T&I?q%v7
?!L4?PK!3O3BP37$SQ&p39&
Kết luận
!?O!3S/"FZZZI7m!IN#T!?O_O@r
I #7<$#3N7R$/cNL3N&Ir3]"w#
kleIkle#2!L?q%v77$S-]!S!II9&0)*T
I&•Q&hI%1&I3BPI$Q&s9i01.&?q%v
7T&!234&TI64&72Q9%1 K01IW91TW W0.&
34&T64&u)|#&$&7T?@0-$$T!nU/D]^
X!R$!6!?O/&pIL%P !".&/!<?]0
?@&
fi' w&0D]^C7&#+7GFZZZe7[[\A+`\\8TŠFZZZ
e&7&7Gk&&7+#&+&+E3%•)&AF+G&+GtW+7&7/+
&7/&7++%%+%%e$%+%TŽŽFZZZT\\AH
fi' w47#'C&H*BP)u|C/Hsx)u|
f(fi(-./
o
‚#‡‡E3#+7&‡E3‡‘‘&WQ‘x‘34&‘]’Z(‘Zu‘‘
