Retrieving the CA Certificate

Figure 14-9 shows the process that occurs when the CA certificate is retrieved, as described in the following list:

1. Abby and Matt request the CA certificate that contains the CA public key.

2. After the CA certificate is received, Abby and Matt's systems verify the validity of the certificate. This is done using public-key cryptography.

3. Abby and Matt go beyond the technical verification done by their systems by telephoning the CA administrator to verify the public key and the serial number of the certificate. This out-of-band process is a necessary step for true certainty.

Figure 14-9 Retrieving a CA Certificate

CA Administration

Figure 14-9 Retrieving a CA Certificate

CA Administration

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