ejrnl

ejrnl

ejrnl is a journaling application for the privacy concious. It stores all of your entries in an encrypted format.

Installing

Install the go tool chain and then run go get -u github.com/btobolaski/ejrnl/cmd/ejrnl. You can then update it in the same way.

Usage

Create your journal using ejrnl init. You can create new entries using ejrnl new. It will create a temporary document and open your editor. When you're done editing, the file will be encrypted and added to your journal. The format is similar to jekyll's, it has a yaml front mattera with the body being markdown devided by ---.

id: 12345
date: 2016-12-25T11:23:45Z
tags:
- example
---
This is the post's body

The id and date are not required. If they are not specified, an id will automatically be generated and the current time will be used for the timestamp. The date must be an iso8601 timestamp. Tags are optional. While the intent is that the body will be markdown, it is not currently processed in any way.

If you'd like to set a new password, you can use ejrnl rekey to decrypt and then reencrypt every file with the new password. The unencrypted files are never written to disk.

There is also an http server which, you can access using ejrnl server. It listens on port 3000 by default and is protected with basic auth. It is definitely the least secure way to use ejrnl but it is by far the most convenient

Developing

You'll need additional tools:

• make
• glide

Make any changes and then run make to run the tests and then compile ejrnl.

Encryption details

ejrnl uses the go standard library implementations whenever possible. ejrnl uses AEAD (GCM specifically) with AES-128 as the cipher. The key is generated using scrypt from your specified password and a salt that is generated on your first use of ejrnl. The exact storage format for the encrypted files is as follows:

{{nonce}}{{file}}