【摘要】 网络通信加密时,为了保证加密的复杂度只能对所有数据进行加密,没有考虑节点的有效性和无用性。一旦网络规模较大,存在大量无效节点的情况下,传统的对称密码技术进行安全通信前,需要对所有节点以安全方式进行密钥交换,一旦节点过多。会造成加解密速度慢、密钥尺寸大的缺点。提出改进椭圆曲线密码的无证书公钥密码体制下的加密优化算法。针对需要加密的网络通信系统进行初始化操作,得到符合算法需求的系统初始状态信息,构建改进椭圆曲线密码理论加密模型,以排除的形式获取合法有效的节点私钥,简化加密过程,然后对系统的各个节点安全属性进行评析、验证密钥的安全性。实验结果表明,利用改进算法进行大型网络通信中无证书公钥体制下的加密优化,能够简化密码系统部署,提高了加密系统的效率。更多还原

【Abstract】 This paper proposed an encryption optimization algorithm of improved elliptic curve cryptosystems under the certificateless public key cryptosystems. Initialization was conducted for the network communication system to be encrypted,so as to obtain the system initial state information meeting the requirements of algorithm,build the theoretical encryption model based on the improved elliptic curve cryptosystems,acquire the legal and valid keys of node in the form of elimination,and simplify the encryption process. Then the safety of various system nodes was evaluated,and the security of the key attributes was verified. The experimental results show that the improved algorithm for encryption optimization in large network communication under the certificateless public key cryptosystems,can simplify the password system deployment,and improve the efficiency of the encryption system.更多还原