Technical Tip: Extract a public key from a certificate file using OpenSSL

[emmanuelgonzalez914]

Description	This article describes extracting a public key from a certificate file using OpenSSL in PEM format. A public key can be used in public and private SDN connectors.
Scope	FortiGate.
Solution	To extract a public key from a certificate file using OpenSSL in Windows operating systems.  Download the 'Fortinet_Factory' certificate from System -> Certificates.  Use the OpenSSL command to extract the public key: openssl x509 -in certificate_file_name.cer -pubkey -noout > public_key_name.pem For example: Note:  Define the file path where the cert resides.  In Windows operating systems, use the correct path syntax. Open the '.pem' and 'Fortinet_Factory.cer', files in notepad, the PEM file will contain the public key extracted. Fortinet_Factory.cert file: Public key PEM file:

[bkarl]

Nice tip! Great job!! keep doing your best Emma!