remark-encrypted-block

This plugin parses custom Markdown syntax to create an encrypted block that gets rendered into an script tag.

Usage is pretty basic, just add a link pointing to #!encrypt and everything after will be encrypted using node-rsa and rendered to base64.

Syntax

This will not be encrypted.
[\#!encrypt]()
This will be encrypted.
Also this.

produces:

<p>This will not be encrypted</p>
<script type="application/base64" integrity="sha256-${cyphertext hash}">
...base64 cyphertext...
</script>

You need to configure by setting a public key string (format pkcs1-public-pem) under the configuration object key named key.

{
  key: '-----BEGIN RSA PUBLIC KEY-----${pubKey}-----END RSA PUBLIC KEY-----'
}

Installation

npm:

npm install --save remark-encrypted-block

Usage

Dependencies:

const unified = require('unified')
const remarkParse = require('remark-parse')
const stringify = require('rehype-stringify')
const remark2rehype = require('remark-rehype')

const remarkCustomBlocks = require('remark-custom-blocks')

Usage:

unified()
  .use(remarkParse)
  .use(remarkEncryptedBlock, {
    key: '-----BEGIN RSA PUBLIC KEY-----${pubKey}-----END RSA PUBLIC KEY-----'
  })
  .use(remark2rehype)
  .use(stringify)

The sample configuration provided above would have the following effect:

1. Allows you to use the following Markdown syntax to define the beginning of the encrypted block:

   This will not be encrypted.
   [\#!encrypt]()
   This will be encrypted.
   Also this.

2. This Remark plugin would create a mdast node for the encrypted block, this node would be of type:

   • encryptedBlock

3. If you're using rehype, you will end up with a script like this:

  <script type="application/base64" integrity="sha256-${cyphertext hash}">
  ...base64 cyphertext...
  </script>

License

ISC

Links