, CHAP, . (. . 2.2), , , , .
CHAP , , LCP .
, . .
- CHAP, , , , CHAP . , -.
, , (, , ).
, . , . - , (, , LAN Express 3.0 Microcom). . , . . , RAS OC WindowsNT Microsoft CHAP MD4 ( MS-CHAP). CHAP D5 . Shiva SPAP (Shiva Password Authentication Protocol Shiva).
, , , . ( ) , - - .
|
|
2.3.4. Microsoft
RAS, Windows NT, CHAP.
, Windows NT RAS , NetManage Chameleon Trumpet Winsock.
CHAP Windows NT RAS .
RSA MD4 ( MS-CHAP) Microsoft -, RSA MD4. , Windows NT. , Windows NT Windows 95 Windows NT RAS, MS-CHAP .
DES (Data Encryption Standard ). -, Microsoft, Windows for Workgroups 3.11 RAS RAS 1.1. DES Windows NT .
SPAP (Shiva Password Authentication Protocol Shiva). Windows NT RAS SPAP , Shiva. PAP, SPAP .
D5. Windows NT RAS RSA MD5-, . Service Pack 3 CHAP - MD5. , . . , MD5, , SAM (Security Account Manager ). ( SAM) , . MD5 Pw, , . , , [<>:] <> (key) c MD5. <>:<> <>\<> - ( \, ). <:> , . 5 , MD5 . , MD5 :
|
|
HKLM\SYSTEM\CurrentControlSet\Services\RasMan\PPP\CHAP\MD5
[<>:] <>(REG_SZ)Pw
2.1 , Microsoft.
2.1.
Windows NT RAS Network Configuration (. 2.4).
. 2.4.
Encryption settings ( ) :
Allow any authentication including clear text ( , ) ( Windows NT RAS), ;
Require encrypted authentication ( ) , CHAP MS-CHAP, DES SPAP;
Require Microsoft encrypted authentication ( Microsoft) Windows NT RAS MS-CHAP.
Windows NT RAS , Windows NT RAS, SPAP. , Windows NT RAS MD5. Windows NT RAS .
Windows NT RAS Security (. 2.5).
. 2.5.
Accept any authentication including clear text ( , ) Windows NT RAS , ;
Accept only encirypted authentication ( ) . MD5, SPAP;
Accept only Microsoft encrypted authentication ( Microsoft) MS-CHAP.
2.4.
, :
;
;
.