In this blog, we will look at 4 certificate types.
1st up PEM which is a base64 format. This format can include a certificate and key and if the key is included and it's protected it would have the wording "private-key" in the file format.
"-----BEGIN PRIVATE KEY-----"
"-----END PRIVATE KEY-----".
Next up PFX ( privacy exchange is also known as PKCS12. Same as above it can have certificate(s) and key and the file format is binary. You will need a passcode to decode it. It's a common exported format in winOS or MacOSX. The extension for the file format would be .pfx
Last, we have DER ( Digital Encoding Rules ) it's also binary and you will commonly see these with the name ending in .der
We also have PKCS#7 but it's rarely used and typically does not contain any keying information.
NSE ( network security expert) and Route/Switching Engineer