How do I use OpenSSL to generate a certificate?
You can generate a certificate using OpenSSL with the following command: openssl req -new -x509 -days 365 -key yourkey.key -out yourcert.crt
. This creates a self-signed certificate.
What if I want to create a certificate signing request (CSR) instead?
To create a CSR, use the command: openssl req -new -key yourkey.key -out yourrequest.csr
. This will generate a CSR file.
Can I use OpenSSL to convert certificate formats?
Yes, you can convert certificates using OpenSSL. For example, to convert a PEM file to DER format, use: openssl x509 -in yourcert.pem -outform DER -out yourcert.der
.
What are the common file extensions for certificates?
Common file extensions include .crt for certificates, .key for private keys, and .csr for certificate signing requests.
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