New block cipher algorithm in single byte for wireless sensor network with excellence of many cipher algorithms is studied. The child keys are generated through the developed discrete Logistic mapping, and the Feistel...New block cipher algorithm in single byte for wireless sensor network with excellence of many cipher algorithms is studied. The child keys are generated through the developed discrete Logistic mapping, and the Feistel encrypting function with discrete chaos operation is constructed. The single byte block is encrypted and decrypted through one turn permutation, being divided into two semi-byte, quadri- Feistel structural operation, and one turn permutation again. The amount of keys may be variable with the turns of Feistel structural operation. The random and security of the child key was proven, and the experiment for the block cipher in wireless sensor network was completed. The result indicates that the algorithm is more secure and the chaos block cipher in single byte is feasible for wireless sensor network.展开更多
为产生数字混沌密码序列,提出了一种新的数字混沌密码序列的设计与生成方法,基于连续混沌系统的直接离散量化和现场可编程门阵列(field programmable gate array,FPGA)技术,密钥参数为初始条件和混沌系统的参数值,其密钥空间大,既可同...为产生数字混沌密码序列,提出了一种新的数字混沌密码序列的设计与生成方法,基于连续混沌系统的直接离散量化和现场可编程门阵列(field programmable gate array,FPGA)技术,密钥参数为初始条件和混沌系统的参数值,其密钥空间大,既可同时产生多路密码序列,又可产生大量不同密钥的密码。基于FPGA产生的混沌密码序列尤其能够有效避免模拟电路所带来的参数失配问题。该混沌密码序列发生器通过了基本的美国国家标准技术研究院(national institute of standard and technology,NIST)测试,可应用于基于软硬件的扩频通信和信息加密。展开更多
基金the National Basic Research Program(Grant No.G1999033105)the Fund of Chongqing Science and Technology Committee(Grant No.2005BB2198)+1 种基金the Fund of the Natural Science of Education Department of Anhui Province,China(Grant No.2005KJ092)the Fund of the Natural Science for the Young Teachers of Huainan Normal University in China(Grant No.2004LKQ01)
文摘New block cipher algorithm in single byte for wireless sensor network with excellence of many cipher algorithms is studied. The child keys are generated through the developed discrete Logistic mapping, and the Feistel encrypting function with discrete chaos operation is constructed. The single byte block is encrypted and decrypted through one turn permutation, being divided into two semi-byte, quadri- Feistel structural operation, and one turn permutation again. The amount of keys may be variable with the turns of Feistel structural operation. The random and security of the child key was proven, and the experiment for the block cipher in wireless sensor network was completed. The result indicates that the algorithm is more secure and the chaos block cipher in single byte is feasible for wireless sensor network.
文摘为产生数字混沌密码序列,提出了一种新的数字混沌密码序列的设计与生成方法,基于连续混沌系统的直接离散量化和现场可编程门阵列(field programmable gate array,FPGA)技术,密钥参数为初始条件和混沌系统的参数值,其密钥空间大,既可同时产生多路密码序列,又可产生大量不同密钥的密码。基于FPGA产生的混沌密码序列尤其能够有效避免模拟电路所带来的参数失配问题。该混沌密码序列发生器通过了基本的美国国家标准技术研究院(national institute of standard and technology,NIST)测试,可应用于基于软硬件的扩频通信和信息加密。
