openssl req

OpenSSL command to manage PKCS#10 Certificate Signing Requests. More information: https://www.openssl.org/docs/manmaster/man1/openssl-req.html.

• Generate a certificate signing request to be sent to a certificate authority:

openssl req -new -sha256 -key filename.key -out filename.csr

• Generate a self-signed certificate and a corresponding key-pair, storing both in a file:

openssl req -new -x509 -newkey rsa:4096 -keyout filename.key -out filename.cert -subj "/C=XX/CN=foobar" -days 365