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