How Does Pki Work; Pki Configuration Task List - HP 5120 EI Switch Series Configuration Manual

VPN

A virtual private network (VPN) is a private data communication network built on the public
communication infrastructure. A VPN can leverage network layer security protocols—for example, IPsec—
in conjunction with PKI-based encryption and digital signature technologies for confidentiality.
 Secure email
Emails require confidentiality, integrity, authentication, and non-repudiation. PKI can address these needs.
The secure email protocol that is developing rapidly is Secure/Multipurpose Internet Mail Extensions
(S/MIME), which is based on PKI and allows for transfer of encrypted mails with signature.
 Web security
For web security, two peers can establish an SSL connection first for transparent and secure
communications at the application layer. With PKI, SSL enables encrypted communications between a
browser and a server. Both of the communication parties can verify each other's identity through digital
certificates.

How does PKI work

In a PKI-enabled network, an entity can request a local certificate from the CA and the device can check
the validity of certificates. Here is how it works:
An entity submits a certificate request to the RA.
1.
The RA reviews the identity of the entity and then sends the identity information and the public key
2.
with a digital signature to the CA.
The CA verifies the digital signature, approves the application, and issues a certificate.
3.
The RA receives the certificate from the CA, sends it to the LDAP server to provide directory
4.
navigation service, and notifies the entity that the certificate is successfully issued.
The entity retrieves the certificate. With the certificate, the entity can communicate with other entities
5.
safely through encryption and digital signature.
The entity makes a request to the CA when it needs to revoke its certificate, and the CA approves
6.
the request, updates the CRLs and publishes the CRLs on the LDAP server.

PKI configuration task list

Complete the following tasks to configure PKI:
Task
Configuring an entity DN
Configuring a PKI domain
Submitting a PKI certificate request
Retrieving a certificate manually
Configuring PKI certificate verification
Destroying a local RSA key pair
Deleting a certificate
Submitting a certificate request in
auto mode
Submitting a certificate request in
manual mode
189
Remarks
Required
Required
Required
Use either approach
Optional
Optional
Optional
Optional