【摘要】 基于改进型Cubic混沌映射,设计了一种混沌密码与滚动码技术相结合的动态密码遥控锁。该锁以手机作为遥控器,采用蓝牙模块传送数据,锁具采用430单片机为主控芯片,步进电动机驱动锁舌,锁舌开闭状态通过霍尔传感器检测。手机和锁具主控芯片里植入相同的混沌映射,利用混沌函数产生的伪随机序列作为密钥,同步迭代产生开闭锁密码。该系统采用一次一密制,密码使用一次后立即失效,系统失效后能够重新设制。整套系统具有低功耗,安全性和可靠性高,密钥资源丰富等特点。更多还原

【Abstract】 Based on the improved Cubic chaotic map,a dynamic telecontrol code lock with chaotic cipher and rolling code technology is designed. This lock takes the mobile phone as the remote-controller and uses blue tooth module to transmit data. The lock adopts the 430 MCU as the main control chip,and the stepper motor to drive the lock tongue.The open and closed states of the lock tongue are detected by Hall sensor. Moreover,the mobile phone and the lock master chip are embedded with the same chaotic map,and the pseudo-random sequence generated by the chaotic function is used as the key to generate the open and close passwords through synchronous iterations. This system adopts the one-time system,and the password becomes invalid immediately after being used. However,the system can be resynchronized after being out of step. The whole system has the characteristics of low power consumption,high security and reliability,and abundant key resources.更多还原