Public-key cryptography RSA and a newly data encryption standard AES are introduced, The efficiency of AES and the simple of DES are used in combining two schemes to propose a new data encryption scheme of network.

• 阐述了公开密钥密码技术RSA算法和最新的数据加密标准AES,利用AES算法的效率以及DES算法中密钥产生和管理的方便性等特点。