NPKCrypt的SDK,很多游戏都加了NP保护,QQ也有NP保护,里面有很多SDK使用的例子.

encripting decrypting program in java .compression decom pression program is also attached

nb过保护源码,能改成过TP,NP保护学习用，非常棒，使用请附上作者名-nb overprotection source code can be changed over TP, NP protection to learn, great, use please include the author s name