3
l l l Kerberosl l PKI/CA
3.1
3.1.1
1l l l /l l l
2ROM
3
3.1.2
1KDCKDCABKDCKKAKBKA(K)AKB(K)BABKK
2
ABABAKBKBBK
3.1.3 PGP 1CACertificate Authority
2
CAPGPintroduder
3.2 Kerberos3.2.1 Kerberos
KerberosTCP/IP KerberosKerberosKerberosKerberos
KerberosASTGS
3.3 3.3.1
1
23CA
3.2.2
/
3.2.3
1 23 4 5CRL 6
3.3
PKIPublic Key Infrustructure, PKI(CA),PKI
3.3.2 PKI
PKI12 CRL
3.3.3 CA
3.3.4 CA
CA1234CRL567