Концепция открытых систем и задача аутентификации в локальных сетях - page 4

Ɋɢɫ
( ,(
ɋɯɟɦɚ ɩɪɨɬɨɤɨɥɨɜ ɜ ɫɢɫɬɟɦɟ
E_l\_lim
ɂɡ ɪɢɫ
( ,
ɜɢɞɧɨ
&
ɱɬɨ ɧɚ ɫɟɬɟɜɨɦ ɭɪɨɜɧɟ ɢɫɩɨɥɶɡɭɟɬɫɹ ɩɪɨɬɨɤɨɥ
CJ
ɜɫɥɟɞɫɬɜɢɟ ɟɝɨ ɲɢɪɨɤɨɝɨ ɪɚɫɩɪɨɫɬɪɚɧɟɧɢɹ ɢ ɩɪɢɟɦɥɟɦɨɣ ɮɭɧɤɰɢɨ
'
ɧɚɥɶɧɨɫɬɢ
(
Ʉ ɨɫɧɨɜɧɵɦ ɧɟɞɨɫɬɚɬɤɚɦ ɩɪɨɬɨɤɨɥɚ
CJ
ɦɨɠɧɨ ɨɬɧɟɫɬɢ ɨɬ
'
ɫɭɬɫɬɜɢɟ ɤɪɢɩɬɨɝɪɚɮɢɱɟɫɤɨɣ ɡɚɳɢɬɵ ɫɨɞɟɪɠɢɦɨɝɨ ɟɝɨ ɩɚɤɟɬɚ ɢ ɨɬɫɭɬ
'
ɫɬɜɢɟ ɚɭɬɟɧɬɢɮɢɤɚɰɢɢ ɧɚ ɫɟɬɟɜɨɦ ɭɪɨɜɧɟ
(
ɉɨɫɥɟɞɧɟɟ ɨɫɨɛɟɧɧɨ ɜɚɠ
'
ɧɨ
&
ɬɚɤ ɤɚɤ ɬɪɚɞɢɰɢɨɧɧɨ ɩɪɟɞɩɨɥɚɝɚɟɬɫɹ ɢɫɩɨɥɶɡɨɜɚɧɢɟ
CJ'
ɚɞɪɟɫɚ ɞɥɹ
ɢɞɟɧɬɢɮɢɤɚɰɢɢ ɭɡɥɚ
U+W(
ɉɪɢɦɟɧɟɧɢɟ ɩɨɞɨɛɧɨɝɨ ɫɩɨɫɨɛɚ ɢɞɟɧɬɢɮɢ
'
ɤɚɰɢɢ ɞɟɥɚɟɬ ɜɨɡɦɨɠɧɵɦ ɩɨɞɦɟɧɭ
CJ'
ɚɞɪɟɫɨɜ ɭɡɥɨɜ
&
ɚ ɫɥɟɞɨɜɚɬɟɥɶɧɨ
&
ɜɨɡɦɨɠɟɧ ɫɪɵɜ ɩɪɨɰɟɫɫɚ ɚɭɬɟɧɬɢɮɢɤɚɰɢɢ
(
ɇɚ ɬɪɚɧɫɩɨɪɬɧɨɦ ɭɪɨɜɧɟ ɦɨɝɭɬ ɢɫɩɨɥɶɡɨɜɚɬɶɫɹ ɩɪɨɬɨɤɨɥɵ ɫɬɟɤɚ
N=J)CJ(
ȼ ɪɚɛɨɬɟ
U,W
ɪɟɤɨɦɟɧɞɭɟɬɫɹ ɢɫɩɨɥɶɡɨɜɚɧɢɟ ɩɪɨɬɨɤɨɥɚ
O>J&
ɨɞ
'
ɧɚɤɨ ɟɝɨ ɢɫɩɨɥɶɡɨɜɚɧɢɟ ɫɨɩɪɹɠɟɧɨ ɫ ɧɟɤɨɬɨɪɵɦɢ ɬɪɭɞɧɨɫɬɹɦɢ ɩɪɢ ɚɭ
'
ɬɟɧɬɢɮɢɤɚɰɢɢ
(
ȼɫɥɟɞɫɬɜɢɟ ɧɟɧɚɞɟɠɧɨɫɬɢ ɩɪɨɬɨɤɨɥɚ
O>J
ɦɨɠɟɬ ɜɨɡɧɢ
'
ɤɚɬɶ ɩɨɜɬɨɪɧɚɹ ɩɟɪɟɞɚɱɚ ɭɠɟ ɩɪɢɧɹɬɨɝɨ ɞɪɭɝɨɣ ɫɬɨɪɨɧɨɣ ɫɨɨɛɳɟɧɢɹ
(
ɋ
ɭɱɟɬɨɦ ɪɟɚɥɢɡɨɜɚɧɧɨɣ ɜ ɩɪɨɬɨɤɨɥɟ ɡɚɳɢɬɵ ɨɬ ɜɨɫɩɪɨɢɡɜɟɞɟɧɢɹ
"l_jf[s#
ɤɥɸɱɚ ɜɨɡɧɢɤɧɨɜɟɧɢɟ ɬɚɤɨɣ ɫɢɬɭɚɰɢɢ ɛɭɞɟɬ ɪɚɫɰɟɧɟɧɨ ɤɚɤ ɩɨɩɵɬɤɚ
ɚɬɚɤɢ ɩɭɬɟɦ ɜɨɫɩɪɨɢɡɜɟɞɟɧɢɹ ɪɚɧɟɟ ɡɚɩɢɫɚɧɧɨɝɨ ɢɡ ɫɟɬɢ ɡɚɩɪɨɫɚ
(
Ɋɟ
'
ɡɭɥɶɬɚɬɨɦ ɷɬɨɝɨ ɦɨɠɟɬ ɫɬɚɬɶ ɩɨɥɧɵɣ ɯɚɨɫ ɜ ɫɢɫɬɟɦɟ
(
Ɍɚɤɠɟ ɜ ɨɬɞɟɥɶɧɵɯ
ɪɟɚɥɢɡɚɰɢɹɯ ɩɪɨɬɨɤɨɥɚ
E_l\_lim
ɪɚɡɦɟɪ ɧɟɤɨɬɨɪɨɝɨ ɫɨɨɛɳɟɧɢɹ ɦɨɠɟɬ
ɩɪɟɜɵɫɢɬɶ ɪɚɡɦɟɪ ɞɚɬɚɝɪɚɦɦɵ ɩɪɨɬɨɤɨɥɚ
CJ&
ɱɬɨ ɩɨɬɪɟɛɭɟɬ ɮɪɚɝɦɟɧ
'
ɬɚɰɢɢ ɫɨɨɛɳɟɧɢɹ
&
ɜɫɥɟɞɫɬɜɢɟ ɱɟɝɨ ɦɨɝɭɬ ɜɨɡɧɢɤɧɭɬɶ ɞɨɩɨɥɧɢɬɟɥɶɧɵɟ
ɫɥɨɠɧɨɫɬɢ ɩɪɢ ɟɝɨ ɨɛɪɚɛɨɬɤɟ
(
ɉɨɷɬɨɦɭ ɩɪɨɢɡɜɨɞɢɬɟɥɢ ɩɪɨɝɪɚɦɦɧɵɯ
ɪɟɚɥɢɡɚɰɢɣ ɩɪɨɬɨɤɨɥɚ
E_l\_lim&
ɜ ɱɚɫɬɧɨɫɬɢ ɤɨɦɩɚɧɢɹ
Gc]limi`n&
ɩɪɟɞ
'
ɩɨɱɢɬɚɸɬ ɢɫɩɨɥɶɡɨɜɚɬɶ ɧɚɞɟɠɧɵɣ ɩɪɨɬɨɤɨɥ
N=J(
Ɂɚɦɟɬɢɦ
&
ɱɬɨ ɜ ɧɟ
'
ɤɨɬɨɪɵɯ ɪɚɫɲɢɪɟɧɢɹɯ ɩɪɨɬɨɤɨɥɚ
E_l\_lim
ɜ ɨɩɟɪɚɰɢɨɧɧɨɣ ɫɢɫɬɟɦɟ
CMMH *,-0'-3--(
ȼɟɫɬɧɢɤ ɆȽɌɍ ɢɦ
(
ɇ
(
ɗ
(
Ȼɚɭɦɚɧɚ
(
ɋɟɪ
(
ɉɪɢɛɨɪɨɫɬɪɨɟɧɢɟ
( ,**/(
ʋ
+ //
1,2,3 5,6,7,8,9,10,11
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