信(xin)息传(chuan)输安(an)全一直是(shi)备受(shou)关注的(de)重要问题，一份包含了很多(duo)商业机(ji)密(mi)(mi)(mi)的(de)文(wen)件，无论是(shi)在传(chuan)输过(guo)程(cheng)(cheng)中被(bei)网络攻击者窃取，还是(shi)储存工(gong)具(ju)丢失(shi)(shi)造(zao)成(cheng)(cheng)数(shu)据泄露，损失(shi)(shi)都是(shi)不(bu)(bu)可想(xiang)象的(de)。哪(na)怕不(bu)(bu)涉及商业，个人隐私泄露，也会造(zao)成(cheng)(cheng)不(bu)(bu)可估量的(de)损失(shi)(shi)。但幸运(yun)的(de)是(shi)，“被(bei)偷”并不(bu)(bu)等于(yu)被(bei)破(po)译，信(xin)息加密(mi)(mi)(mi)做好(hao)了，就能降低因信(xin)息或(huo)文(wen)件丢失(shi)(shi)而(er)导致信(xin)息外(wai)流(liu)的(de)概(gai)率。那是(shi)否有(you)那么一款(kuan)人手可用，又能确保安(an)全的(de)工(gong)具(ju)软件给信(xin)息加密(mi)(mi)(mi)呢？司(si)空app，不(bu)(bu)同(tong)于(yu)简(jian)单6位密(mi)(mi)(mi)码设置，它是(shi)通过(guo)了量子(zi)密(mi)(mi)(mi)钥加密(mi)(mi)(mi)，基于(yu)邮箱(xiang)的(de)加密(mi)(mi)(mi)系(xi)统创新性(xing)地(di)以(yi)聊天模式(shi)展示(shi)，收发(fa)信(xin)息自(zi)如，操作简(jian)便，加密(mi)(mi)(mi)无感，容易上手。电(dian)子(zi)邮件服(fu)务模型的(de)工(gong)作流(liu)程(cheng)(cheng)与(yu)传(chuan)统邮政服(fu)务流(liu)程(cheng)(cheng)大(da)致相同(tong)。用SM4给邮件加密(mi)(mi)(mi)的(de)步骤

邮(you)(you)(you)(you)箱绑(bang)(bang)定(ding)后，点击司(si)空(kong)底部(bu)导航栏中(zhong)的(de)(de)(de)邮(you)(you)(you)(you)件(jian)(jian)(jian)(jian)(jian)，此时可以看(kan)到邮(you)(you)(you)(you)件(jian)(jian)(jian)(jian)(jian)列表里已(yi)展(zhan)示出部(bu)分历史(shi)邮(you)(you)(you)(you)件(jian)(jian)(jian)(jian)(jian)，说明邮(you)(you)(you)(you)箱绑(bang)(bang)定(ding)成功。点击右上角“写邮(you)(you)(you)(you)件(jian)(jian)(jian)(jian)(jian)”按钮，进入邮(you)(you)(you)(you)件(jian)(jian)(jian)(jian)(jian)编辑页(ye)面。如(ru)(ru)果彼(bi)此已(yi)经是通(tong)讯录好友，可以直(zhi)接点击黄色加号选中(zhong)想要(yao)发(fa)送的(de)(de)(de)好友，之后跟(gen)写普通(tong)邮(you)(you)(you)(you)件(jian)(jian)(jian)(jian)(jian)一样，输入邮(you)(you)(you)(you)件(jian)(jian)(jian)(jian)(jian)主(zhu)题，正文(wen)内(nei)容，或者(zhe)上传(chuan)附(fu)件(jian)(jian)(jian)(jian)(jian)。司(si)空(kong)的(de)(de)(de)不(bu)同(tong)之处在于(yu)“量(liang)子密(mi)钥加密(mi)”和“无(wu)痕(hen)(hen)阅览(lan)”两个开关，“量(liang)子密(mi)钥加密(mi)”默认开启状(zhuang)态，发(fa)送的(de)(de)(de)邮(you)(you)(you)(you)件(jian)(jian)(jian)(jian)(jian)都是经过量(liang)子密(mi)钥加密(mi)的(de)(de)(de)。“无(wu)痕(hen)(hen)阅览(lan)”可根据需(xu)要(yao)打开，如(ru)(ru)若开启，邮(you)(you)(you)(you)件(jian)(jian)(jian)(jian)(jian)接收人只有(you)一次阅读的(de)(de)(de)机会，且不(bu)能复制(zhi)及转发(fa)，返回后邮(you)(you)(you)(you)件(jian)(jian)(jian)(jian)(jian)消失。如(ru)(ru)果彼(bi)此不(bu)是司(si)空(kong)通(tong)讯录好友，你也可以发(fa)送加密(mi)邮(you)(you)(you)(you)件(jian)(jian)(jian)(jian)(jian)，只是对方收到的(de)(de)(de)是密(mi)文(wen)，无(wu)法查看(kan)。需(xu)要(yao)告知(zhi)他下载司(si)空(kong)，注册绑(bang)(bang)定(ding)该邮(you)(you)(you)(you)箱后，才能正常查阅。方便的(de)(de)(de)邮(you)(you)(you)(you)件(jian)(jian)(jian)(jian)(jian)加密(mi)有(you)阅后即(ji)焚吗司(si)空(kong)邮(you)(you)(you)(you)件(jian)(jian)(jian)(jian)(jian)加密(mi)的(de)(de)(de)聊天模式与即(ji)时通(tong)讯软件(jian)(jian)(jian)(jian)(jian)的(de)(de)(de)区别(bie)。

外(wai)贸(mao)行业(ye)中，尤其是(shi)做(zuo)大宗(zong)贸(mao)易的(de)(de)，对价格、采购量的(de)(de)信息(xi)(xi)是(shi)非常敏感的(de)(de)，属于商业(ye)机密(mi)。业(ye)务员(yuan)平(ping)时(shi)的(de)(de)沟通(tong)(tong)除(chu)了电(dian)话基(ji)本就是(shi)邮件了，书面的(de)(de)东西流转肯定会有留痕，那么(me)怎(zen)么(me)才(cai)能确保(bao)信息(xi)(xi)内容不被人(ren)(ren)(ren)看(kan)到呢？一(yi)般大家都会选择国(guo)外(wai)比(bi)价盛行的(de)(de)通(tong)(tong)讯(xun)工具(ju)whatsapp，它在(zai)外(wai)国(guo)人(ren)(ren)(ren)心中的(de)(de)地位就像国(guo)内的(de)(de)微(wei)信一(yi)样无法撼动。但在(zai)国(guo)家对公(gong)民(min)个人(ren)(ren)(ren)隐(yin)私与(yu)个人(ren)(ren)(ren)数据安全越(yue)来越(yue)重视的(de)(de)环(huan)境下，现(xian)在(zai)应(ying)用(yong)市场(chang)上类似(si)的(de)(de)产品已经找不到了。司空(kong)作为一(yi)款(kuan)加密(mi)工具(ju)，基(ji)于邮箱的(de)(de)底层逻辑，用(yong)加密(mi)邮件及聊天功能实现(xian)贸(mao)易人(ren)(ren)(ren)员(yuan)的(de)(de)商务沟通(tong)(tong)与(yu)交流，确保(bao)数据和(he)个人(ren)(ren)(ren)隐(yin)私安全，保(bao)证商务数据不被泄(xie)露。符合了外(wai)贸(mao)行业(ye)的(de)(de)当下需求，或许司空(kong)可(ke)以成为一(yi)款(kuan)不可(ke)或缺的(de)(de)工具(ju)。

在这个日新月异的时(shi)代，我们每天(tian)都(dou)有很多灵感的迸发(fa)且需要(yao)小(xiao)范(fan)围的传(chuan)递(di)与沟(gou)通(tong)。比(bi)(bi)如(ru)在设计行业的日常(chang)工(gong)作(zuo)中，设计师(shi)根据需求设计的各(ge)(ge)种图纸等，需要(yao)发(fa)送给指(zhi)定的人或(huo)团队；再比(bi)(bi)如(ru)集(ji)团、各(ge)(ge)企(qi)业内部，日常(chang)工(gong)作(zuo)中为避免商业机(ji)密(mi)的泄露，要(yao)求使用(yong)电子邮箱(xiang)进(jin)行通(tong)信的公司(si)，都(dou)对传(chuan)递(di)的信息及内容有着较高的保密(mi)需求，那么这时(shi)候(hou)司(si)空(kong)(kong)的作(zuo)用(yong)就凸显(xian)出来了(le)，司(si)空(kong)(kong)的“聊天(tian)”、“邮件”功(gong)能(neng)，都(dou)是(shi)基(ji)于邮件进(jin)行信息传(chuan)递(di)，采用(yong)端到(dao)端加密(mi)技术，全(quan)程(cheng)加密(mi)，确保用(yong)户数据在网(wang)络传(chuan)输、中转(zhuan)和存储全(quan)程(cheng)处(chu)于强加密(mi)状态，任何(he)第三方都(dou)无机(ji)可乘。司(si)空(kong)(kong)邮件加密(mi)的宝藏功(gong)能(neng)——无痕阅览。

对称(cheng)加(jia)(jia)密(mi)(mi)(mi)(mi)(mi)的(de)(de)原(yuan)理(li)：为(wei)了保护用户的(de)(de)数(shu)(shu)(shu)据(ju)(ju)不被第(di)(di)(di)三双(shuang)眼(yan)睛偷窥，需要将用户的(de)(de)数(shu)(shu)(shu)据(ju)(ju)在(zai)离开网(wang)卡之(zhi)前加(jia)(jia)密(mi)(mi)(mi)(mi)(mi)处理(li)，将用户的(de)(de)明(ming)(ming)文(wen)(wen)(wen)(wen)数(shu)(shu)(shu)据(ju)(ju)加(jia)(jia)密(mi)(mi)(mi)(mi)(mi)成(cheng)密(mi)(mi)(mi)(mi)(mi)文(wen)(wen)(wen)(wen)数(shu)(shu)(shu)据(ju)(ju)，密(mi)(mi)(mi)(mi)(mi)文(wen)(wen)(wen)(wen)数(shu)(shu)(shu)据(ju)(ju)尽管还是(shi)(shi)0、1二(er)进制(zhi)流，但(dan)是(shi)(shi)这些二(er)进制(zhi)流，即使还原(yuan)成(cheng)ASCII码，也(ye)是(shi)(shi)一堆毫无意义的(de)(de)字符串(chuan)，毫无用处。上文(wen)(wen)(wen)(wen)提到(dao)了第(di)(di)(di)三双(shuang)眼(yan)睛，那么前两双(shuang)眼(yan)睛分别是(shi)(shi)谁呢？是(shi)(shi)明(ming)(ming)文(wen)(wen)(wen)(wen)数(shu)(shu)(shu)据(ju)(ju)的(de)(de)发(fa)送者(zhe)(zhe)和密(mi)(mi)(mi)(mi)(mi)文(wen)(wen)(wen)(wen)数(shu)(shu)(shu)据(ju)(ju)的(de)(de)接收(shou)者(zhe)(zhe)。由(you)(you)于(yu)接收(shou)者(zhe)(zhe)有(you)密(mi)(mi)(mi)(mi)(mi)文(wen)(wen)(wen)(wen)的(de)(de)解(jie)除(chu)加(jia)(jia)密(mi)(mi)(mi)(mi)(mi)密(mi)(mi)(mi)(mi)(mi)钥(yao)，可以(yi)将密(mi)(mi)(mi)(mi)(mi)文(wen)(wen)(wen)(wen)还原(yuan)成(cheng)明(ming)(ming)文(wen)(wen)(wen)(wen)，被称(cheng)为(wei)阅读明(ming)(ming)文(wen)(wen)(wen)(wen)数(shu)(shu)(shu)据(ju)(ju)的(de)(de)第(di)(di)(di)二(er)双(shuang)眼(yan)睛。第(di)(di)(di)三双(shuang)眼(yan)睛是(shi)(shi)谁？任(ren)何有(you)机(ji)会(hui)看(kan)(kan)到(dao)、或捕获(huo)到(dao)密(mi)(mi)(mi)(mi)(mi)文(wen)(wen)(wen)(wen)数(shu)(shu)(shu)据(ju)(ju)的(de)(de)人，都可以(yi)认为(wei)是(shi)(shi)第(di)(di)(di)三双(shuang)眼(yan)睛。由(you)(you)于(yu)第(di)(di)(di)三双(shuang)眼(yan)睛的(de)(de)人没有(you)解(jie)除(chu)加(jia)(jia)密(mi)(mi)(mi)(mi)(mi)密(mi)(mi)(mi)(mi)(mi)钥(yao)，所以(yi)无法(fa)还原(yuan)出(chu)明(ming)(ming)文(wen)(wen)(wen)(wen)数(shu)(shu)(shu)据(ju)(ju)，自然就没法(fa)看(kan)(kan)明(ming)(ming)文(wen)(wen)(wen)(wen)数(shu)(shu)(shu)据(ju)(ju)。在(zai)网(wang)络安全领域(yu)，经常(chang)称(cheng)第(di)(di)(di)三双(shuang)眼(yan)睛的(de)(de)人为(wei)第(di)(di)(di)三方(fang)。将明(ming)(ming)文(wen)(wen)(wen)(wen)数(shu)(shu)(shu)据(ju)(ju)与加(jia)(jia)密(mi)(mi)(mi)(mi)(mi)密(mi)(mi)(mi)(mi)(mi)钥(yao)做(zuo)一次(ci)加(jia)(jia)密(mi)(mi)(mi)(mi)(mi)操(cao)作(zuo)(zuo)，将密(mi)(mi)(mi)(mi)(mi)文(wen)(wen)(wen)(wen)数(shu)(shu)(shu)据(ju)(ju)与解(jie)除(chu)加(jia)(jia)密(mi)(mi)(mi)(mi)(mi)密(mi)(mi)(mi)(mi)(mi)钥(yao)做(zuo)一次(ci)解(jie)除(chu)加(jia)(jia)密(mi)(mi)(mi)(mi)(mi)操(cao)作(zuo)(zuo)，由(you)(you)于(yu)加(jia)(jia)/操(cao)作(zuo)(zuo)方(fang)法(fa)完(wan)全一样，并且(qie)加(jia)(jia)/密(mi)(mi)(mi)(mi)(mi)钥(yao)也(ye)完(wan)全一样，故称(cheng)这种数(shu)(shu)(shu)据(ju)(ju)发(fa)送方(fang)、数(shu)(shu)(shu)据(ju)(ju)接收(shou)方(fang)共享(xiang)会(hui)话密(mi)(mi)(mi)(mi)(mi)钥(yao)，并且(qie)共同使用会(hui)话密(mi)(mi)(mi)(mi)(mi)钥(yao)来完(wan)成(cheng)加(jia)(jia)/操(cao)作(zuo)(zuo)的(de)(de)方(fang)法(fa)为(wei)对称(cheng)加(jia)(jia)密(mi)(mi)(mi)(mi)(mi)。邮件(jian)加(jia)(jia)密(mi)(mi)(mi)(mi)(mi)可以(yi)确保邮件(jian)内容在(zai)传输(shu)过程中不被篡改或窃取(qu)。可以(yi)分享(xiang)邮件(jian)加(jia)(jia)密(mi)(mi)(mi)(mi)(mi)软件(jian)如何使用

量(liang)子密(mi)钥真的(de)安全(quan)吗？用SM4给邮件(jian)加密(mi)的(de)步骤(zhou)

邮(you)(you)件(jian)(jian)(jian)(jian)(jian)加(jia)(jia)密(mi)(mi)(mi)(mi)是一种保护(hu)电子(zi)邮(you)(you)件(jian)(jian)(jian)(jian)(jian)内(nei)容不(bu)被未经授权的人查看的技(ji)(ji)术(shu)。它(ta)通过(guo)使(shi)(shi)用(yong)密(mi)(mi)(mi)(mi)码(ma)学(xue)技(ji)(ji)术(shu)来加(jia)(jia)密(mi)(mi)(mi)(mi)邮(you)(you)件(jian)(jian)(jian)(jian)(jian)内(nei)容，使(shi)(shi)得只(zhi)有授权的人才能(neng)够查看邮(you)(you)件(jian)(jian)(jian)(jian)(jian)内(nei)容。邮(you)(you)件(jian)(jian)(jian)(jian)(jian)加(jia)(jia)密(mi)(mi)(mi)(mi)可(ke)以(yi)保护(hu)个人隐私(si)(si)、商业机(ji)密(mi)(mi)(mi)(mi)等重要(yao)信(xin)息，防止信(xin)息泄露和(he)被攻击。邮(you)(you)件(jian)(jian)(jian)(jian)(jian)加(jia)(jia)密(mi)(mi)(mi)(mi)技(ji)(ji)术(shu)已(yi)经成为(wei)现代通信(xin)中不(bu)可(ke)或缺的一部分(fen)，邮(you)(you)件(jian)(jian)(jian)(jian)(jian)加(jia)(jia)密(mi)(mi)(mi)(mi)可(ke)以(yi)保护(hu)我们的隐私(si)(si)和(he)安全。司空是一款量子(zi)密(mi)(mi)(mi)(mi)钥加(jia)(jia)密(mi)(mi)(mi)(mi)软件(jian)(jian)(jian)(jian)(jian)，保护(hu)用(yong)户(hu)的数据和(he)隐私(si)(si)安全，帮助(zhu)用(yong)户(hu)打造个人私(si)(si)密(mi)(mi)(mi)(mi)空间(jian)。用(yong)户(hu)使(shi)(shi)用(yong)司空，可(ke)以(yi)进行(xing)文件(jian)(jian)(jian)(jian)(jian)加(jia)(jia)密(mi)(mi)(mi)(mi)和(he)邮(you)(you)件(jian)(jian)(jian)(jian)(jian)加(jia)(jia)密(mi)(mi)(mi)(mi)。用(yong)SM4给邮(you)(you)件(jian)(jian)(jian)(jian)(jian)加(jia)(jia)密(mi)(mi)(mi)(mi)的步骤

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