二重keeloq算法在智能门禁系统中的应用研究
|
摘要
门禁系统一直是智能建筑的重要组成部分,而Keeloq滚动码技术在智能门禁系统、无线门锁装置等领域都具有广泛的应用。分析了keeloq算法对门禁系统钥匙码的加密解密原理和其在应用上的不足,归纳了单重keeloq算法和多重keeloq算法的一些问题,提出了二重keeloq算法。二重keeloq算法并不是简单地对一个钥匙码进行二次keeloq算法加密,而是在一重keeloq算法加密的基础上对钥匙码中所包含的一些关键信息再进行部分加密,两次加密的明文长度和加密资料均不相同。这种加密方式在增加钥匙码复杂度的同时,相对于多重keeloq加密方式减少了系统在钥匙码加密和解密过程中所带来的计算开销。
Access control system has always been an important part of access control system,and Keeloq rolling code technology has a wide range of applications in intelligent access control systems,wireless door locks and other fields.This paper analyzed the encryption and decryption principle of keeloq algorithm and its application in the key code of the access control system.Summarizing some problems of single keeloq algorithm and multiple keeloq algorithm,this paper provided a kind of scheme called dual keeloq algorithm to improve its security.The dual keeloq algorithm is not a simple secondary keeloq algorithm for a key code encryption,it's another keeloq algorithm encryption of the important field of key code on the basis of single keeloq algorithm encryption.The required information and the code length are different in the two encryption.This encryption method increases the complexity of key code.At the same time,compared to multiple keeloq encryption,it reduces the overhead of system calculation in the key code encryption and decryption process.
Access control system has always been an important part of access control system,and Keeloq rolling code technology has a wide range of applications in intelligent access control systems,wireless door locks and other fields.This paper analyzed the encryption and decryption principle of keeloq algorithm and its application in the key code of the access control system.Summarizing some problems of single keeloq algorithm and multiple keeloq algorithm,this paper provided a kind of scheme called dual keeloq algorithm to improve its security.The dual keeloq algorithm is not a simple secondary keeloq algorithm for a key code encryption,it's another keeloq algorithm encryption of the important field of key code on the basis of single keeloq algorithm encryption.The required information and the code length are different in the two encryption.This encryption method increases the complexity of key code.At the same time,compared to multiple keeloq encryption,it reduces the overhead of system calculation in the key code encryption and decryption process.
引文
[1]李娟,王宏大,祝慧,等.一种基于功能安全的汽车PEPS系统[J].农业装备与车辆工程,2014(4):57-59.
[2]COURTOIS N T,BARD G V.Algebraic and slide attacks on KeeLoq[OL].http://eprint.iacr.org/2007/062.
[3]游建雄,李瑞林,李超.轻量级分组密码Keeloq的故障攻击[J].北京大学学报(自然科学版),2010,46(5):756-762.
[4]COURTOIS N T.Self-similarity attacks on block ciphers and application to keeloq[M]∥Cryptography and Security:From Theory to Applications.Springer Berlin Heidelberg,2012:55-66.
[5]刘璟,陈惠滨,叶文才.KeeLoq算法的改进与实现[J].信号处理,2014,30(11):1335-1338.
[6]赵烽.KEELOQ加密算法安全性探究[J].信息网络安全,2011(8):29-31.
[7]王秋燕,金晨辉.KeeLoq密码第1种滑动-代数攻击的改进[J].计算机工程,2009,35(16):133-137.
[8]张健,任洪娥,陈宇.密码学原理及应用技术[M].北京:清华大学出版社,2014.
[9]李玲,陈惠滨.基于KEELOQ的无线遥控车位锁系统设计[J].电子技术应用,2013,39(12):52-54.
[10]游子毅,李丹,肖文君.改进的keeloq算法及其在无钥匙进入与启动系统中的应用[J].科学技术与工程,2017,17(20):181-183.
[2]COURTOIS N T,BARD G V.Algebraic and slide attacks on KeeLoq[OL].http://eprint.iacr.org/2007/062.
[3]游建雄,李瑞林,李超.轻量级分组密码Keeloq的故障攻击[J].北京大学学报(自然科学版),2010,46(5):756-762.
[4]COURTOIS N T.Self-similarity attacks on block ciphers and application to keeloq[M]∥Cryptography and Security:From Theory to Applications.Springer Berlin Heidelberg,2012:55-66.
[5]刘璟,陈惠滨,叶文才.KeeLoq算法的改进与实现[J].信号处理,2014,30(11):1335-1338.
[6]赵烽.KEELOQ加密算法安全性探究[J].信息网络安全,2011(8):29-31.
[7]王秋燕,金晨辉.KeeLoq密码第1种滑动-代数攻击的改进[J].计算机工程,2009,35(16):133-137.
[8]张健,任洪娥,陈宇.密码学原理及应用技术[M].北京:清华大学出版社,2014.
[9]李玲,陈惠滨.基于KEELOQ的无线遥控车位锁系统设计[J].电子技术应用,2013,39(12):52-54.
[10]游子毅,李丹,肖文君.改进的keeloq算法及其在无钥匙进入与启动系统中的应用[J].科学技术与工程,2017,17(20):181-183.