Brief notes on TLS/SSL private keys and certificates, their various formats and converting them to different formats using OpenSSL.
- OpenSSL Commands: https://www.openssl.org/docs/man1.1.1/man1/ (current stable version - v1.1.1)
- OpenSSL Cookbook: https://www.feistyduck.com/books/openssl-cookbook/
- Public-key Cryptography Standards (PKCS): https://en.wikipedia.org/wiki/PKCS
- X.509 certificates filename extensions: https://en.wikipedia.org/wiki/X.509#Certificate_filename_extensions