applied cryptography

i need a project report in cryptography algorithm- DES or GPG .A page report with one of the algorithms it's code (java/c++)and it's implications ,the way it works and its advantages/disadvantages. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform programs to be in java of c++