Entropy-As-A-Service Server for the raspberry pi. Uses Django.
Send requests to http://domain.tld/entropy/ to get statistics (entropy amount available, etc.).
Encrypted random numbers come from http://domain.tld/entropy/random, http://domain.tld/entropy/urandom or
http://domain.tld/entropy/hwrandom. Random returns bytes from /dev/random which blocks if the entropy count
is low. Urandom returns bytes from /dev/urandom which does not block. Hwrandom returns bytes from the hardware
RNG which is probably very slow.
There is no sanity-check for data from hwrandom. Be careful that the hardware may be errorous. If in doubt use random because Linux whitens the inserted entropy.
You probably need sudo apt install python3-dev libffi-dev.
On old Raspbian versions pyvenv is missing. You can fix this by installing a new version of Python:
wget https://www.python.org/ftp/python/3.5.1/Python-3.5.1.tgz
tar xzf Python-3.5.1.tgz
cd Python-3.5.1/
sudo apt-get install libssl-dev openssl
./configure
make -j 5
sudo make install
Clone the git repository: git clone https://github.com/pinae/RandPi.git
Enter the directory: cd RandPi
Use pyvenv to create a virtualenv: pyvenv env
Activate it with: source env/bin/activate
After that you can install all requirements at once with: sudo pip install -r requirements.txt
Install: sudo apt-get install uwsgi uwsgi-plugin-python3
Create a configuration for the RandPi-app in /etc/uwsgi/apps-available/RandPi.ini:
[uwsgi]
vhost = true
gid = www-data
uid = www-data
plugins = python3
socket = /tmp/RandPi.sock
master = true
enable-threads = true
processes = 1
wsgi-file = /var/www/vhost/RandPi/RandPi/RandPi/wsgi.py
virtualenv = /var/www/vhost/RandPi/env
chdir = /var/www/vhost/RandPi/RandPi
touch-reload = /var/www/vhost/RandPi/RandPi/reload
Do not forget to activate the app with a symlink:
ln -s /etc/uwsgi/apps-available/RandPi.ini /etc/uwsgi/apps-enabled/RandPi.ini
Touch the reload file: touch /var/www/vhost/RandPi/RandPi/reload