I've written a new blog post, Best Practices for Storing Keys and Credentials for 3rd Party Systems in Drupal.
Drupal, being an excellent framework for integrating various unrelated systems, often requires usage of 3rd party keys. For example, when integrating with Google Wallet API, a developer creates an authorization key on Google, downloads it, then sets up their system to use this key to generate a JWT token that is passed back to Google. This authorization key needs to be made available to the system when building packages, yet also needs to be stored securely so that it does not fall into nefarious hands...
Read the whole thing here: https://www.jaypan.com/blog/best-practices-storing-keys-and-credentials-...
Note: This blog was written without the use of AI, other than a proofread for grammar and spelling errors.