基于Linux的文件加密传输技术

为实现Linux系统服务器端与客户端的文件加密传输，对RSA加密算法和Linux系统线程池技术进行了研究。通过在Linux上配置安装Openssl库来实现非对称RSA加密过程，并且利用线程池技术处理一个服务器与多个客户端的文件传输过程。最终实现了嵌入式ARM客户端与Linux服务器端的网络连接功能，并完成了基于TCP/IP协议上的文件加密以及传输过程。结论表明使用SSL协议设计的加密系统能够完成加密和传输过程，充分保障资料的私密性，并且能够方便的移植到安全级别需求高的嵌入式系统。

File encryption transmission technology based on Linux

In order to realize the Linux server and client system file encryption transmission, fully guarantee the transmission process of data confidentiality, I studied the RSA encryption algorithm and the characteristics of thread pool. To use the Openssl of Linux to realize the encryption process neatlyS and to deal with one server to multiple clients process encryption communication by using thread pool. The experimental results show that the successful use of ARM platform as the client, to connect the server, and complete the RSA encryption process and file transfer process. The design of asymmetric encryption algorithm can be applied to many of the embedded operating platform with network transmission function.