Postio

Overview

Postio is a encrypted file sender and receiver. Written in Rust Postio will encrypt a file (Using AES-256 in CBC mode) and send this file to an AWS S3. The initialization vector (IV) and symmetric key are also encrypted with RSA-4096 private/public keys. Your public key is sent to the AWS S3 store (different S3 instance) for the sender to get your public key to properly encrypt the file.

How to Install

First you can clone the git repo and build yourself. - Current the code compiles on Mac OSX (10.12.5 Sierra), and CentOS 7. - If you compile yourself make sure you have openssl, openssl-devel, and gcc already installed on your machine - You'll need OpenSSL (for the crypto bindings) to compile.

Next, you'll want to add your AWS key ID and secret access key in your environment. You can do this in unix by adding this to your .bashrc or .bash_profile and running source ~/.bashrcor source ~/.bash_profile or by adding these to the terminal you currently have open:

export AWS_ACCESS_KEY_ID="your_key_id_here" export AWS_SECRET_ACCESS_KEY="your_secret_access_here"

After that and you have a working binary you are good to go!

By the way, you can grab the pre-compiled binaries (in the near future) by doing cargo install postio:

Options

``` Postio 0.3.0 Ricky (Degausser) Ricky@Hosfelt.io Send and receive encrypted files

USAGE: Postio [FLAGS] [OPTIONS]

FLAGS: -x, --setup Create config file and populate settings -l, --list List files in your queue -d, --no-delete Do not delete files after getting them -a, --all Get all files at once -Q, --clear Deletes all files in your queue

OPTIONS: -g Gets file from queue [default: ] -s Send file to user -c, --config Sets a custom config file (defaults to $HOME/.postio/config) -o Change output directory to something other than the current directory -u User@email.com User to receive file ```

Config File Structure

Using serde postio will parse the config file in toml format.

The configure file should look like below:

email = "ricky@hosfelt.io" private_key = "/Users/rthosfelt/.postio/private_key.pem" public_key = "/Users/rthosfelt/.postio/public_key.pem" file_store = "postio" file_store_region = "eu-west-2" public_key_store = "postio-keys" public_key_store_region = "eu-central-1"

On the first run the program will set up the config file for you (or you can ran postio -x to setup another config file, including generating the RSA private/public keys. You can also generate these on your own:

openssl genrsa -des3 -out private.pem 4096 openssl rsa -in private.pem -outform PEM -pubout -out public.pem

Contact

Feel free to put in a ticket for any issues in the code or to call me names.

Email: rickyhosfelt.io IRC: degausser (freenode and Mozilla)