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Do I need to convert .CER to .CRT for Apache SSL certificates? If so, how?

Asked 2009-03-13T11:40:01.280
184

I need to setup an Apache 2 server with SSL.

I have my *.key file, but all the documentation I've found online, *.crt files are specified, and my CA only provided me with a *.cer file.

Are *.cer files the same as *.crt? If not, how can I convert CER to CRT format?

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The .cer and .crt file should be interchangable as far as importing them into a keystore.

Take a look at the contents of the .cer file. Erase anything before the -----BEGIN CERTIFICATE----- line and after the -----END CERTIFICATE----- line. You'll be left with the BEGIN/END lines with a bunch of Base64-encoded stuff between them.

-----BEGIN CERTIFICATE-----
MIIDQTCCAqqgAwIBAgIJALQea21f1bVjMA0GCSqGSIb3DQEBBQUAMIG1MQswCQYD
...
pfDACIDHTrwCk5OefMwArfEkSBo/
-----END CERTIFICATE-----

Then just import it into your keyfile using keytool.

keytool -import -alias myalias -keystore my.keystore -trustcacerts -file mycert.cer
answered 2009-03-13T12:37:44.977

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