xAAL-sec-lib
============
xAAL use Poly1305/Chacha20 to cipher/decipher messages. LibSodium provides 
nice support for this, but we were unable to find a Java binding for this 
right now. (most bindings don't support chacha20 in fact).

We decided to write this quick & dirty JNI wrapper to fix this issue. 


Instuctions:
------------
  
* To build the shared lib:
  make lib

* To build java classes: 
  make classes
  
* To build jar:
  make jar
  
* To test:
  make test
  
You should be able to import the Java classes into an IDE, simply open the 
the src/ folder.


Notes:
------
- If you want a sample example to use this lib, look at 
  => src/org/tb/xaal/sec/Test.java

- Java don't provide a very usefull set of feature to deal microsecond 
  timestamps. I decided to simply build the nonce with second,milliseconcds + 
  random. This should be fine for chacha20.
  
- This lib is a temporary fix, we hope chacha20 & Poly will have some binding
  soon.
  
- This lib have be tested on x86 & ARM7 plateform (just change the JAVA_HOME 
  in Makefile)