DOCUMENTATION: http://docs.tinyos.net/index.php/Main_Page
WSN Project:
http://www.tik.ee.ethz.ch/~beutel/Main/Projects
Cryptographic Code:
The C code for my ACM TOSN '06 paper "Survey and benchmark of block ciphers for wireless sensor networks": http://sites.google.com/site/yeeweilaw/
Cryptography algorithms for TinyOS : http://tinyos.cvs.sourceforge.net/viewvc/tinyos/tinyos-2.x-contrib/crypto/index.html