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一种新式便携式密码管理器设计
发布时间:2020-01-17

  摘    要: 随着计算机网络在人们的日常生活中所占的比重越来越大,输出信息环境的安全就变得至关重要。在信息交流传输中,常面临信息被截获,中断,篡改,伪造的威胁。为保障信息安全,密码加密因而出现,把明文通过密匙加密变成密文传送的方法就更加安全。为了使加密的安全系数更高,更多的密码算法不断的被创造,与此同时,密码被破解的威胁就变得越来越普遍。针对这种现象,人们采取加入字母字符、用繁杂的方式组合密码等方法,为自己的讯息创造更高的安全系数。这也让密码的组合方式更加多样,而记忆密码的负担也愈发沉重,一个方便记忆、设置密码的工具就变得帮助巨大。本文以人们丢失密码的具体情境为出发点,设计一个既可以记忆密码又可以保证安全的密码管理器以解决这一问题。

  关键词: 密码; 密码安全; 应用密码; 密码管理器;

  Abstract: With the increasing proportion of computer networks in people's daily lives, the security of the output information environment becomes critical. In the exchange of information, we often face the threat of interception, interruption, tampering and forgery of information. In order to ensure the security of information, password encryption has emerged. It is more secure to convert the plain text into encrypted text by encrypting it with a key. In order to make the encryption more secure, more cryptographic algorithms have been continuously created, and at the same time, the threat of password cracking has become increasingly common. In response to this phenomenon, people have adopted methods such as adding alphabetic characters and combining passwords in a complicated manner to create a higher security factor for their own messages. This also makes the combination of passwords more diverse, and the burden of remembering passwords is getting heavier. A tool that is convenient to remember and set passwords has become hugely helpful. This article takes the specific situation where people lose their passwords as a starting point, and designs a password manager that can both remember passwords and ensure security to solve this problem.

  Keyword: password; password security; application password; password manager;

  0、 引言

  随着时代的不断发展,信息化的进程也在不断地加快,人们对各种信息通讯工具的使用愈发频繁,安全,则是随之而来最重要的问题。密码是安全的核心,而各大软件、网站为了保障用户安全,在限定密码数字的同时,常常还会要求大小写字母,字符,这也就加大了记忆的难度。随着人们的生活日益丰富,所需要设置记住的密码越来越多。单一密码安全系数不高,而不同网站设置不同的密码所需要的记忆量越来越大,通常用记忆力记住这些密码是最为常见的方法,显着的弊端便是记混或遗忘带来的不必要的麻烦。而在本子上记则更为麻烦。这时,有一个辅助的工具就会方便许多。现实中常用密码管理软件作为辅助,但密码管理软件的一大缺陷是当在别的电脑上需要登录时,还需再下载一个密码管理软件,很不方便。本文主要介绍了一种新式的便携式密码管理器,该密码管理器侧重于实际应用,会解决密码复杂却安全系数不高,记忆量大等实际问题,且简单方便,便于操作。
 

一种新式便携式密码管理器设计
 

  1、 密码概述

  1.1、 什么是密码

赢发彩票代理   MIMAZAIZIDIANLIDEDINGYIYOULIANGZHONG,YISHIZAIYUEDINGDERENZHONGJIANSHIYONGDETEBIEBIANDINGDEMIMIDIANMAHUOHAOMA(QUBIEYU“MINGMA”),ERSHIDUITARENBAOMIDEHAOMA。ERCICHUDEMIMAGENGPIANXIANGYUERZHEDEJIEHEDINGYI。ZAIYINGYONGMIMAXUESHANG,MIMAZUOWEIYIZHONGHUNXIAOSHITINGDEJISHU,SHIYONGZHEXIWANGJIANGZHENGCHANGDE(KESHIBIEDE)XINXIZHUANBIANWEIWUFASHIBIEDEXINXI。DANZHEIZHONGWUFASHIBIEDEXINXIBUFENSHIKEYIZAIJIAGONGBINGHUIFUHEPOYIDE。MIMAZAIZHONGWENLISHI“KOULING”(password)DETONGCHENG[1]。MIMAJIUSHIBAYONGGONGKAIDE、BIAOZHUNDEXINXIBIANMABIAOSHIDEXINXITONGGUOYIZHONGBIANHUANSHOUDUAN,JIANGQIBIANWEICHUTONGXINSHUANGFANGYIWAIQITARENSUOBUNENGDUDEXINXIBIANMA,QISHIANTEDINGFAZEBIANCHENG,YONGYIDUITONGXINSHUANGFANGDEXINXIJINXINGMINGMIBIANHUANDEFUHAO,ZHEIZHONGDUTEDEXINXIBIANMAJIUSHIMIMA[2]。MIMAYOUZHEYOUJIUDELISHI,ZAIHENZAOYIQIANJIUYONGYUMIMIXINXIDECHUANDI。ZAIJINDAIZHANZHENGZHONG,XINXICHUANDIZHONGSHIYONGMIMAZEGENGWEICHANGJIANPUBIAN。ZAIXIANDAI,SUIZHEJISUANJIJISHUHEXINXIGEMINGDESHENRUFAZHAN,SHIYONGMIMADEYINGYONGLINGYUYEGENGJIAGUANGFAN,ZAISHUJUXINXIQIANMINGHEANQUANRENZHENGDENGFANGMIANYEHUIYINGYONGDAOMIMA。ZHEIYANG,MIMADEYINGYONGYEBUZAIZHIJUXIANYUJUNSHIZHANDOUDENGCHUANTONGFANGMIAN,ERSHIYIJINGCHUXIANLEMIMAYINGYONGDESHEHUIHUAHEGERENHUAQUSHI。

  1.2、 密码学及其相关概念

  MIMAXUESHIYANJIUBIANZHIMIMAHEPOYIMIMADEJISHUKEXUE。TANJIUMIMABIANHUADEGUILV,YANJIUGEZHONGJIAMIFANGAN。BIANMAXUESHIZHUYAOYINGYONGYUBIANZHIMIMALAIBAOZHENGTONGXINANQUANDEYIMENXUEKE;ERZAIBUZHIDAOMIMADEQINGKUANGXIA,TONGGUOJIEXIJISHUPOYIMIMADE,SHUYUMIMAJIEXI,JITONGSUSUOCHENG“POYI”,ZHEILIANGFANGMIANZONGCHENGMIMAXUE。LIANGZHEXIANGHUZHICHI,XIANGHUYIKAO,MIBUKEFEN。MIMAXUEDEJIBENSIXIANGZESHITONGGUOGAIBIANSHUNXU,HUOYONGZIFUTIDAI,SHIYUANSHIYOUGUILVDEXINXIBIANCHENGZALUANWUZHANGDEDAIMA,YIBAOZHENGXINXICHUANSHUGUOCHENGZHONGDEANQUANYINSU[3]。YINWEISHUANGFANGSHIXIANDOULEJIELEJIAMIFANGSHI,SUOYIKEYIDUIJIAMIHOUDEXINXIJINXINGHUIFU。ERSUIZHEJISHUDEBUDUANGEXIN,MIMAXUEDEYINGYONGYEBUJINXIANYUXINXIDEJIAMI,ZHUBUKUOZHANDAOLEDUISHENFENDESHIBIEHEDIANZIRENZHENGDENGFANGMIAN。ZAIMIMAXUEFANCHOULI,YUANSHIXIAOXICHENGZHIWEIMINGWEN,JIAMIHOUDEXIAOXICHENGZHIWEIMIWEN,CONGMINGWENDAOMIWENDEBIANHUAGUOCHENGCHENGZHIWEIJIAMI,CONGMIWENDAOMINGWENDEZHUANHUANGUOCHENGCHENGZHIWEIJIEMI。SHIYONGYUJIAMIJIEMIDEGUANGYIHANSHUCHENGZHIWEIMIMASUANFA。

  2 、密码管理器

  DANGQIANSHIMIANSHANGYIJINGYOUMIMASHENGCHENGQI,MIMACHAKANQIDENGDENG,ERWOMENSUOSHEJIDEMIMAGUANLIQIHAIGENGLEISIYUERZHEDEYIGEJIEHE。MIMAGUANLIQIYUZHIQIANXIANGBIZHUYAOYOUSANGEYOUDIAN,YISHIQITIJIBUDA,FANGBIANXIEDAI,QIECAOZUOJIANDAN;ERSHIZAICHUCIZHUCESHI,ZAIMIMAGUANLIQIDAKAIDEJIEMIANSHANG,YOUYIGEQIANGZHIGENGGAISHURUQIEXUYAOJIZHUDEZHUMIMA,SHUANGZHONGBAOZHANG。CHENGGONGGENGGAIHOU,MIMAGUANLIQIHUIBUDUANDIJINXINGHOUTAIJIANCE,YIFANGMIANYOUZHANGHAODENGLUXUYAOMIMAJIUKEYILIJIJIANCEDAO,LINGYIFANGMIANRUGUOZAIGONGGONGCHANGSUOSHIYONGSHIKEYIJIANCEDAODIANNAOBENSHENSHIFOUXIEDAIBINGDU,RUGUOBENSHENDIANNAOHUANJINGWEIXIAN,JIUHUIDANCHUCHUANGKOUTISHIBUYAODENGLU。LINGWAI,RUGUOGERUANJIANWANGYEDEMIMASHEZHICHAOGUOYIGEYUE,JIUHUIDANCHUXIAOCHUANGTISHISHIFOUZHONGZHI;SANSHIBUXUYAODALIANGDEJIYIJIUKEYIQUEBAOANQUANXISHUGAODEMIMA,ZAIRICHANGSHENGHUOZHONGSHENGQULEHENDUOMAFAN。QIWAIXINGDAXIAOLEISIYUYIGEUPAN,YOUXIEBUTONGYUXIANJINDEXUDUOXUYAOXIAZAIDEMIMAGUANLIRUANJIAN,TAZHUYAOYIYIGEBIANXIEDEYINGJIANXINGSHICUNZAI,SHIYONGSHIZHIXUJIERUDIANNAODECHAKOU。

  3 、密码管理器系统的实现

  3.1、 系统功能设计

  ZAICHUCISHIYONGSHI,HUIQIANGXINGYAOQIUXIUGAICHUCHANGSHEZHIDEZHUMIMA,XIUGAISHIXIANZHILEZHONGZHIMIMABIXUSHILIUWEIQIEBAOHANSHUZI、ZIFU、DAXIAOXIEZIMU,QUEBAOANQUANXING。QIZHUMIMADEJIAMIJIEMICAIYONGTOUMINGJIAMIJISHU,JIZHIYOUZAICHARUMIMAGUANLIQIYINGJIANDETIAOJIANXIA,SHURUZHUMIMACAINENGJIANGQIJIEMI,DAKAIRUANJIANZHUJIEMIAN。BICHUANTONGDEDUICHENGJIAMIJISHUGENGWEIANQUANYOUBAOZHANG。CHARUHOUMIMAGUANLIQIHUIBUDUANJIANCERUANJIANHEWANGYEDEDAKAI,BINGPANDUANSHIFOUYOUDUOGEWANGYEHUORUANJIANDAKAI,QIWANGYEHUORUANJIANSHIFOUCUNZAIDUOGEZHANGHAOXUYAOXUANZE。DANGCHUCIDAKAIYOUSHEZHIMIMAXUYAOSHI,BIANHUIZIDONGDANCHUCHUANGKOU,XUNWENSHIFOUTIANRUMIMA,ZHIXUDIANJIQUEDINGANJIAN,JIUKEYIZIDONGTIANRU。XIAYICIDAKAIZAICIXUYAOSHURUMIMASHI,MIMAGUANLIQIJIUHUIZIDONGSHURU。QIJUTILIUCHENGTURU1SUOSHI。

  3.1.1 、软件主界面

  ZAIXIUGAIZHUMIMAHOUJINRUMIMAGUANLIQIDEZHUJIEMIAN(TU2),ZHUYAOBAOKUODENGLUMOKUAI、FENZUGUANLIMOKUAI、JILUXINXIMOKUAIHELISHIXINXIMOKUAI。

  3.1.2 、初始登录模块

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  图1 系统流程图
图1 系统流程图

  图2 软件主界面图
图2 软件主界面图

  3.1.3 、分组管理模块

  图3 初始登录模块图
图3 初始登录模块图

  ZAIDAKAIYIGEYOUSHEZHIMIMAXUYAODEWANGYEHUORUANJIANZHIHOU,ZAIFENZUGUANLIMOKUAIHUIZIDONGSHENGCHENGGAIWANGYEHUORUANJIANDUIYINGDEKONGBAIWENJIANJIA,FANGBIANFENLEICUNCHU。FENZUGUANLIMOKUAIDEFENLEIWENJIANJIACHUCUNBIMIANLEMIMACHUCUNGUODUODEHUNLUAN,SHIMIMAYOUXUPAILIE,FANGBIANCHAZHAO。QIZAIFENZUXINXIMOKUAISHENGCHENGDEKONGBAIWENJIANJIAZHONG,ZAIFENZUCHUCUNBUTONGWANGYEZHANGHAOMIMAJINGGUOJIAMIHOUDEMIWEN,SHIDEZHIHOUDEDENGLUCAOZUOGENGJIAJIANDANHEKUAIJIE。

  3.1.4、 记录信息模块

  CIMOKUAIZHUYAOSHIZAIJILUGERUANJIANWANGYESHEZHIDEMIMAZHANGHAO,ANFENZUGUANLIMOKUAIZAIZHIQIANFENHAODEZUJINXINGCHUCUN。BINGQIEHAIKEYIBIANYUZAIXIAYICIDENGLUSHIZHIJIEFUZHILIANJIEWANGZHIHEMIMA,DIANJIGUOHOUZHIJIEDENGLU,BUBIZAIQUSOUSUOWANGZHIHEMAFANMIMAGUANLIQIJIANCE。

  3.1.5 、历史信息模块

  CIMOKUAIDEZHUYAOGONGNENGSHICHAKANZHIQIANBUTONGWANGYERUANJIANDELISHIDENGLUSHIJIAN、FANGSHI、SUOSHIYONGSHEBEI。DUILISHIXINXIDECHAKAN,KEYIZAIZHUJIEMIANSHANGSHUANGJILISHIXINXIYILAN,ZAICHAKANSHIYIDANFAXIANYICHANG,JIUKEYIZAIDIYISHIJIANGENGGAIMIMA,BAOZHENGXINXIANQUAN。

  3.2 、数据库设计

  TONGGUODUIMIMAGUANLIQIDEGONGZUOLIUCHENGFENXI,FENXISHUJUKUCUNCHUJIEGOU。ZAISHUJUKUZHONG,ZHUMIMAHEJILUXINXISHIZUIWEIZHONGYAODELIANGGEMOKUAI,ZHUMIMABAOKUOBIAOSHI、CHUANGJIANSHIJIAN、MIMA;JILUXINXIZEBAOKUOBIAOSHI、CHUANGJIANSHIJIAN、ZHANGHAOHEMIMA。ZHUMIMAZHISHIZAIDIYICIDENGLUSHIQIANGZHIGENGGAI,ZHIHOURUWUTESHUGENGGAIBUHUIBIANHUA。WEIFANGBIANZHAOHUI,CHUCIZHUMIMABAOHUHAIKEYISHEZHIYIGEZHAOHUIWENTIJIDAANHUOBANGDINGSHOUJIJIESHOUYANZHENGMA。ZAIJILUXINXIZHONGCHUCUNMIWEN,MEISANGEYUEDOUHUIDANCHUCHUANGKOUJIANYIXIUGAIMIMA,RUGUOXUANZEQUEDING,HUIZIDONGGENGGAIZHONGZHI,ZHONGXINCHUCUNBINGQINGKONGYUANXIANCHUCUN。

  4 、总结与展望

  MIMAGUANLIQIZAIWOMENDERICHANGSHENGHUOZHONGFAHUIZHEZHONGYAODEZUOYONG,SHENGQULEJIYIDALIANGMIMADENAOLILAODONGSHIJIAN,YOUBAOZHENGLEYONGHUSHIYONGSHIDEFANGBIANKUAIJIEHECHONGFENDEMIMAANQUAN,JIRICHANGSHENGHUODAILAILEHENDADEBIANLI。BENWENZHUYAOJIESHAOLEMIMAGUANLIQIDEJIBENGOUXIANG,QIJUTIDERUANJIANJIEMIANHEGEGEMOKUAIDEZUOYONG、CAOZUOLIUCHENG。MIMAGUANLIQISUIRANGAIJINLEZHIQIANPUTONGYINGYONGMIMASHEZHIDEBUZU,DANYECUNZAIZHEHENDUOBUZU。LIRUMIMAGUANLIQIZAISHOUJISHANGDESHIXIANYINGYONGRENGBIJIAOKUNNAN,MIMASUANFADEBIANHUANBUGOULINGHUO,NANJIEDESUANFACHUCUNJIANGSHIZHIHOUTISHENGDEFANGXIANG。

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