Based on the [crypto-js](https://github.com/brix/crypto-js) library, StatiCrypt uses AES-256 to encrypt your string with your passphrase in your browser (client side).
Download your encrypted string in a HTML page with a password prompt you can upload anywhere (see [example](https://robinmoisson.github.io/staticrypt/example.html)).
StatiCrypt generates a static, password protected page that can be decrypted in-browser: just send or upload the generated page to a place serving static content (github pages, for example) and you're done: the javascript will prompt users for password, decrypt the page and load your HTML.
**Disclaimer:** The concept is simple and should work ok but I am not a cryptographer, if you have sensitive banking or crypto data you might want to use something else. :)
You can report thoughts and issues to the [GitHub project](https://robinmoisson.github.io/staticrypt) but be warned I might be extremely slow to respond (though the community might help). If a serious security issue is reported I'll try to fix it quickly.
You can use a custom template for the password prompt - just copy `cli/password_template.html` and modify it to suit your presentation style and point to your template file with the `-f` flag. Be careful to not break the encrypting javascript part, the variables replaced by staticrypt are between curly brackets: `{instructions}`.
This will add a "Remember me" checkbox. If checked, when the user enters their passphrase its salted hashed value will be stored in localStorage. In case this value becomes compromised an attacker can decrypt the page, but this should hopefully protect against password reuse attack (of course please use a unique passphrase nonetheless).
This allows encrypting multiple page on a single domain with the same password: if you check "Remember me", you'll have to enter you password once then all the pages on that domain will automatically decrypt their content.
If no value is provided the stored passphrase doesn't expire, you can also give it a value in days for how long should the store value be kept. If the user reconnects to the page after the expiration date the store value will be cleared.
You can clear the values in localStorage (effectively "login out") at any time by appending `staticrypt_logout` to the URL query paramets (`mysite.com?staticrypt_logout`).
### `--embed` and crypto-js
If you do not embed crypto-js and serve it from a CDN, some adblockers see the `crypto-js.min.js`, think that's a crypto miner and block it.
Thank you: [@AaronCoplan](https://github.com/AaronCoplan) for bringing the CLI to life, [@epicfaace](https://github.com/epicfaace) & [@thomasmarr](https://github.com/thomasmarr) for sparking the caching of the passphrase in localStorage (allowing the "Remember me" checkbox)
**Opening PRs:** You're free to open PRs if you're ok with having no response for a (possibly very) long time and me possibly ending up getting inspiration from your proposal but merging something different myself (I'll try to credit you though). Apologies in advance for the delay, and thank you!
https://github.com/tarpdalton/staticrypt/tree/webcrypto is a fork that uses the WebCrypto browser api to encrypt and decrypt the page, which removes the need for `crypto-js`. There's a PR open which I haven't checked in detail yet. WebCrypto is only available in HTTPS context (which [is annoying people](https://github.com/w3c/webcrypto/issues/28)) so it won't work if you're on HTTP.