Apple Mac OS X Server Version 10.4 or Later Manuel d'utilisateur télécharger pdf (Page 93)

Appendix

Certificates and Security

Mac OS X Server supports many services which use SSL

to ensure encrypted data transfer. It uses a Public Key

Infrastructure system to generate and maintain

certificates of identity for use with SSL-enabled services.

Understanding Public Key Infrastructure

Public Key Infrastructure (PKI) systems allow the two parties in a data transaction to be

authenticated to each other, and to use encryption keys and other information in

identity certificates to encrypt and decrypt messages traveling between them.

PKI enables multiple communicating parties to establish confidentiality, message

integrity and message source authentication without having to exchange any secret

information in advance.

SSL (Secure Socket Layer) technology relies on a PKI system for secure data

transmission, and user authentication. It creates an initial secure communication

channel to negotiate a faster, secret key transmission. Mac OS X Server uses SSL to

provide data encrypted data transmission for mail, web, and directory services.

The following sections contain more background information about key aspects of PKI:

• “Public and Private Keys”

• “Certificates”

• “Certificate Authorities (CA)”

• “Identities”

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Apple Mac OS X Server Version 10.4 or Later Manuel d'utilisateur Page 93