Prompt

Solve the following questions about the Cyber Skyline SSL certificate.

Walk-Through

This challenge will give you experience viewing and analyzing SSL certificate chains. SSL certificates help to secure the communication between a client and a server. Most modern browsers should have an interface to view the certificates in a SSL certificate chain. In this example, Google Chrome is used.

Start by clicking the icon next to cyberskyline.com URL. Then click on the “Connection is secure” section in the dropdown.

The SSL chain can then be accessed by clicking on the “Certificate is valid” option.

The Certificate Viewer will contain all of the details needed to answer the questions.

Questions

1. Who is the issuer for Cyber Skyline's SSL certificate?

The issuer is listed in the “General” tab under “Issued By → Common Name”.

2. How many bits long is the SSL key?

The number of bits is listed in the “Details” tab under “Certificate Fields → *.cyberskyline.com → Certificate → Subject Public Key Info → Subject’s Public Key”.

3. How many certificates are in the certificate chain?

The number of certificates can be counted by looking at how many certificates are listed in the “Details” tab under “Certificate Hierarchy”.