CODEWITHSUNDEEP
sslopensslcertificatessl-certificate
Geesh_SO
Geesh_SO

Reputation: 2206

How can these PEM files (including chain) be converted to KEY and CRT files?

There is a very similar question here that but as far as I can tell it deals with one input PEM file whereas I have three, one of which is a chain file.

Convert .pem to .crt and .key

I have these three files generated by a LetsEncrypt helper program (win-acme).

foo.bar.co.uk-chain.pem
foo.bar.co.uk-crt.pem
foo.bar.co.uk-key.pem

What commands should I run in openssl (or otherwise) to generate two files in the form of foo.bar.co.uk.key and foo.bar.co.uk.crt?

Upvotes: 0

Views: 1542

Answers (1)

Patrick Mevzek
Patrick Mevzek

Reputation: 12475

The extensions in filenames do not matter.

foo.bar.co.uk-key.pem is foo.bar.co.uk.key and foo.bar.co.uk.crt is either just foo.bar.co.uk-crt.pem or the concatenation of foo.bar.co.uk-crt.pem and foo.bar.co.uk-chain.pem depending on where/how it is used.

PEM is just the name of the format to encode either the certificate or the key.

But again (since it is a very widespread false assumption): the filenames, including their extensions, do not matter at all. You can call your file foo.bar and it will work the same way, as long as the content is right.

Upvotes: 1

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