A totally predictable pattern shows more entropy than a randomly generated one. I would love to hear from people who have better and deeper understanding of the topic.
bckt-mcp: a MCP helper for the bckt static site generator. Compose your posts in Claude, let it take care of the front matter, paths, slugs, filenames.
And now that I think of it. IMAP (more or less) allows you to download your mbox file. Why downloading using HTTP is so much worst (it isn't) than using IMAP?
Considering that you don't know whether you can be sure that you've used a secure implementation, then the answer is a resounding, NO! It is not, by your own admission, 'safe' to publish any data that needs to remain secure in a publicly available setting.
Once you can answer yes to:
<snip>
How can you be sure you've used a secure implementation? No idea
</snip>
Then you will be able to ascertain for yourself whether your encrypted data, placed in a publicly available location, is "Safe Enough", "Secure Enough" for your needs.
It would be naive to assume that any data placed somewhere, encrypted or not, is stored with a completely invulnerable method.
That having been said, one must rise to the occasion of determining how secure something needs to be, and then availing oneself of the means to achieve that level of security.
I hope that helps, but in reality, there really isn't a cut and dried YES|NO answer - only relative levels of reasonable assurance in securing your data and communications.
The answer is: You can publish things that are encrypted, but the level of confidence is tied up with knowing that the encryption is secure against all attack vectors as applied by your most determined and well-resourced adversary for ten years, during which time advances in attacks will be made.
If you think no one will really care, if your adversaries have little or nothing to gain, then you're probably fine.
If they stand to gain a lot, you're probably not.
But I'm not an expert, I'm just trying to highlight some of the issues for you.