Generating keys using OpenSSL. This document will guide you through using the OpenSSL command line tool to generate a key pair which you can then import into a YubiKey. Two different types of keys are supported: RSA and EC (elliptic curve). Dec 01, · How to create self-certified SSL certificate and public/private key files. Iguana supports OpenSSL SSH-2 private keys and certificates in PEM format, these must not be password protected. Jun 19, · Create xbook.info certificate file using OpenSSL. The PKCS#12 or PFX format is a binary format for storing the server certificate, any intermediate certificates, and the private key into a single encryptable file. PFX files are usually found with the xbook.info and.p PFX files are typically used on Windows machines to import and export certificates and private keys. Open xbook.info in a text editor, Move to the [ v3_req ] section of the file. One of the most versatile SSL tools is OpenSSL which is an open source Generate a new private key and Certificate Signing Request For example, you can convert a normal PEM file that would work with Apache to a PFX. To generate a public and private key with a certificate signing generated with OpenSSL will always have xbook.info file format.