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About: Key / Certificate / Certificate signing request

Create a self signed CA

Create a client or server certificate signed by this CA

Operations on keys

# Extract just the public key.
openssl rsa -in key.pem -pubout >

# Create a copy without the passphrase
openssl rsa -in server.key -out server.key.insecure
mv server.key  
mv server.key.insecure server.key