5

I have a PEM file that looks like:

-----BEGIN CERTIFICATE-----
...
-----END CERTIFICATE-----

which I can convert to another PEM file using: openssl x509 -in key.crt -pubkey -noout. The new PEM file now looks like:

-----BEGIN PUBLIC KEY-----
...
-----END PUBLIC KEY-----

my question is, what is the difference between these two files?

5

One is a public cert, the other is a key. As Federico stated in comments, this question addresses it pretty well.

That being said, what are you trying to do?

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