针对网络通信安全问题,分析了3DES加密算法的原理,描述了该算法FPGA设计的高速实现,各个模块均用硬件描述语言(VHDL)实现。系统最终在Xilinx ISE 10.1开发工具下进行编译、仿真验证及逻辑综合,完成了对数据的加解密运算。仿真结果表明,...针对网络通信安全问题,分析了3DES加密算法的原理,描述了该算法FPGA设计的高速实现,各个模块均用硬件描述语言(VHDL)实现。系统最终在Xilinx ISE 10.1开发工具下进行编译、仿真验证及逻辑综合,完成了对数据的加解密运算。仿真结果表明,该系统可广泛应用于网络安全产品及其电子安全设备中。展开更多
A novel multicast communication model using a RingNet hierarchy is proposed. The RingNet hierarchy consists of 4 tiers: border router tier, access gateway tier, access proxy tier and mobile host tier. Within the hiera...A novel multicast communication model using a RingNet hierarchy is proposed. The RingNet hierarchy consists of 4 tiers: border router tier, access gateway tier, access proxy tier and mobile host tier. Within the hierarchy, the upper 2 tiers are dynamically organized into logical rings with network entities. A novel hierarchical secure access control scheme on key management is proposed based on the RingNet model. Network entities within the multicast hierarchy belong to different privileged local groups. Network entities of the higher-privileged local groups have the right to derive the keys held by network entities of the lower-privileged local groups, and the reverse operation is not allowed. With the key management approach, any insertion and changing of local group key will not affect other local groups. The analytical result shows that the scheme has higher security than Lin’s.展开更多
文摘针对网络通信安全问题,分析了3DES加密算法的原理,描述了该算法FPGA设计的高速实现,各个模块均用硬件描述语言(VHDL)实现。系统最终在Xilinx ISE 10.1开发工具下进行编译、仿真验证及逻辑综合,完成了对数据的加解密运算。仿真结果表明,该系统可广泛应用于网络安全产品及其电子安全设备中。
文摘A novel multicast communication model using a RingNet hierarchy is proposed. The RingNet hierarchy consists of 4 tiers: border router tier, access gateway tier, access proxy tier and mobile host tier. Within the hierarchy, the upper 2 tiers are dynamically organized into logical rings with network entities. A novel hierarchical secure access control scheme on key management is proposed based on the RingNet model. Network entities within the multicast hierarchy belong to different privileged local groups. Network entities of the higher-privileged local groups have the right to derive the keys held by network entities of the lower-privileged local groups, and the reverse operation is not allowed. With the key management approach, any insertion and changing of local group key will not affect other local groups. The analytical result shows that the scheme has higher security than Lin’s.
