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openssl-req:tldr:9c946
The command you provided is used with the OpenSSL library to generate a new Certificate Signing Request (CSR) using a private key.
Let's break down the command:
-
openssl
: This is the command-line tool used to interface with the OpenSSL library, which provides functions for SSL/TLS and encryption. -
req
: This is a subcommand of OpenSSL used to handle Certificate Signing Request (CSR) operations. -
-new
: This option instructs OpenSSL to generate a new CSR. -
-sha256
: This option specifies the hashing algorithm to be used. In this case, SHA-256 is chosen as the algorithm for generating the CSR signature. -
-key ${filename-key}
: This option specifies the location and filename of the private key to be used for generating the CSR. The${filename-key}
is a placeholder that needs to be replaced with the actual filename and path of the key file. -
-out ${filename-csr}
: This option specifies the location and filename for the output CSR file generated by OpenSSL. The${filename-csr}
is a placeholder that needs to be replaced with the desired filename and path for the CSR file.
By running this command with the appropriate values for ${filename-key}
and ${filename-csr}
, you will generate a new CSR using the provided private key and save it in the specified output file.