User Guide

Table Of Contents
Managing Keys and Certificates 387
Nortel WLAN Security Switch 2300 Series Configuration Guide
Choosing the Appropriate Certificate Installation Method for Your
Network
Depending on your network environment, you can use any of the following methods to install certificates and their
public-private key pairs. The methods differ in terms of simplicity and security. The simplest method is also the least
secure, while the most secure method is slightly more complex to use.
Self-signed certificate—The easiest method to use because a CA server is not required. The WSS switch generates
and signs the certificate itself. This method is the simplest but is also the least secure, because the certificate is not
validated (signed) by a CA.
PKCS #12 object file certificate—More secure than using self-signed certificates, but slightly less secure than
using a Certificate Signing Request (CSR), because the private key is distributed in a file from the CA instead of
generated by the WSS switch itself. The PKCS #12 object file is more complex to deal with than self-signed
certificates. However, you can use WLAN Management Software , Web View, or the CLI to distribute this
certificate. The other two methods can be performed only using the CLI.
Certificate Signing Request (CSR)—The most secure method, because the WSS switch’s public and private keys
are created on the WSS switch itself, while the certificate comes from a trusted source (CA). This method requires
generating the key pair, creating a CSR and sending it to the CA, cutting and pasting the certificate signed by the
CA into the CLI, and then cutting and pasting the CAs own certificate into the CLI.
Table 27 lists the steps required for each method and refers you to appropriate instructions. (For complete examples, see
“Key and Certificate Configuration Scenarios” on page 393.)
Table 27: Procedures for Creating and Validating Certificates
Certificate
Installation
Method
Steps Required Instructions
Self-signed
certificate
1. Generate a public-private key pair on the WSS
switch.
2. Generate a self-signed certificate on the WSS
switch.
“Creating Public-Private Key
Pairs” on page 388
“Generating Self-Signed
Certificates” on page 389
PKCS #12
object file
certificate
1. Copy a PKCS #12 object file (public-private
key pair, server certificate, and CA certificate)
from a CA onto the WSS switch.
2. Enter the one-time password to unlock the file.
3. Unpack the file into the switch’s certificate and
key store.
“Installing a Key Pair and
Certificate from a PKCS #12 Object
File” on page 390
Certificate
Signing Request
(CSR) certificate
1. Generate a public-private key pair on the WSS
switch.
2. Generate a CSR on the switch as a PKCS #10
object file.
3. Give the CSR to a CA and receive a signed
certificate (a PEM-encoded PKCS #7 object
file).
4. Paste the PEM-encoded file into the CLI to
store the certificate on the WSS switch.
5. Obtain and install the CAs own certificate.
“Creating Public-Private Key
Pairs” on page 388
“Creating a CSR and Installing
a Certificate from a PKCS #7
Object File” on page 391
“Installing a CAs Own
Certificate” on page 392