iOS系统安全和口令破解研究

Research on System Security and Password Cracking of iOS

近年来,移动智能终端正在以前所未有的速度发展。移动平台的功能趋于丰富,手机已从以往的电话短信的工具逐渐变为娱乐,商务与社交的设备。用户对于移动终端的安全性也提出了更高的要求。以iOS为操作系统的平台在移动终端领域有举足轻重的地位。本文从系统架构、加密和数据保护、网络安全机制和设备访问控制四方面对iOS系统的数据安全机制进行了分析,并结合一个iOS口令破解的实例,展示了iOS安全机制的实际作用及其局限性,最后对iOS系统安全机制和用户口令破解过程提出了改进建议并提出了未来可能的研究方向。

In recent years, mobile terminal is developing at a high rate.The functions of Mobile platform tend to be rich.Mobile phones have transformed from the tool of phoning and SMS to the platform of entertainment, business and communication.And it also puts forward higher requirements for the safety of the user.iOS oper-ating system has a pivotal position in the field of mobile terminal.This paper analyses iOS data security mech-anisms from aspects of System Architecture,Encryption and Data Protection,Network Security and Device Ac-cess.There is also a password cracking instance, showing the advantages and limitations of iOS security mech-anism.Finally, the paper proposed recommendations for ios security mechanism and passcode cracking.Then possible future research directions about iOS are listed.