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NAMEGFWEDPROTOCOLE2E GROUPSELF-DESTRUCTCALL/VIDEOOPEN SOURCEDECENTRALIZEDPHONE/EMAILPRICEF-DroidPLATFORMCONS
PRICAVY POLICYWHITEPAPERPS
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signalNOSIGNALYESYESYESYESNOPHONEFREENOAndroid,iOS,LINUX,MAC,WIN需要手机号;Linux版不好用(丢消息,每次启动加载很慢,卡)不支持群成员管理(最少获取用户信息的设计思想导致);https://whispersystems.org/signal/privacy/https://whispersystems.org/docs/specifications/doubleratchet/
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wireYES ProteusYESYESYESClient++有这个构思PHONE/EMAILFREENOAndroid,iOS,WP,Web,LINUX,MAC,WIN(明文存储群名,存储头像,成员列表,永久存储密文附件),记录用户设备信息,IP,消息全在一侧,web启动慢,容易掉线https://wire.com/en/privacy/https://wire.com/resource/Wire%20Security%20Whitepaper/download/
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wickrYESwickrYESYESCALL FREE
,VIDEO PRO
PROTOCOLNONOFREENOAndroid,iOS,LINUX,MAC,WIN免费版群聊10人上限https://www.wickr.com/privacy-policyhttps://www.wickr.com/s/White-Paper_Wickr-Messaging-Protocol.pdf
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ThreemaNO SaltyRTCYESNOCALLWebNONO$2.99NOAndroid,iOS,Web不支持全局删除https://threema.ch/en/privacyhttps://threema.ch/press-files/2_documentation/cryptography_whitepaper.pdf
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toxNOtoxQtoxNOYESYESYESNOFREEYESAndroid,iOS,LINUX,MAC,WIN可用性不佳(状态不稳定,不支持离线消息,手机版不支持群聊,非常耗电和流量)https://tox.chat/faq.htmlhttps://tox.chat/faq.html
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riotNOMegolmYESNOYESYESYESNOFREEYESAndroid,iOS,WP,Web,LINUX,MAC,WIN卡(chrome CPU100%),慢,E2E ROOM需要多次验证多个设备,收集大量隐私(包括聊天内容),不支持聊天记录备份自毁等https://riot.im/privacyhttps://matrix.org/docs/spec/megolm.html
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WhatsappYESSIGNALYESYES
YESNONOPHONEFREENOAndroid,iOS,WP,MAC,WIN收集大量元数据,FACEBOOK的节操问题(被收购后和Facebook分享用户数据,instagram监听用户等)https://www.whatsapp.com/legal/https://www.whatsapp.com/security/WhatsApp-Security-Whitepaper.pdf
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viberYESYESYESYESNONOPHONEFREENOAndroid,iOS,LINUX,MAC,WIN
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conversationsNOOMEMO/OTR/OPENPGPSUPPORTEDYESYESEMAIL$2.49+YESAndroid基于XMPP,存储大量数据,安全性取决于服务器可信程度和对方使用的客户端,不支持聊天记录自毁(可关闭)https://account.conversations.im/privacy/https://conversations.im/omemo/
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kontalkNOOPENPGPYESYESYESPHONEFREEYESAndroid,LINUX,MAC,WIN基于XMPP,存储大量数据,安全性取决于服务器可信程度和对方使用的客户端,不支持聊天记录自毁(可关闭)https://github.com/kontalk/network/blob/master/docs/privacy.mdhttps://github.com/kontalk/specs/blob/master/encryption.md
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BriarYESYESNONOYESYESNOFREEYESAndroid
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SurespotNO256 AES-GCMNO支持双向删除NOClientNONOFREEOLDAndroid,iOS服务器保存1000条聊天记录密文,UI粗糙
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telegramYESMTPROTONOYES
YESNONOPHONEFREEYES
Android,iOS,WP,Web,LINUX,MAC,WIN自己发明的加密协议,低级安全漏洞,大量隐私泄漏,保存所有记录,搜索太烂,假装开源,抄袭别人demo代码,拿用户当白痴骗,创始人多次故意抹黑竞争对手等https://telegram.org/privacyhttps://core.telegram.org/mtprotohttps://security.stackexchange.com/questions/49782/is-telegram-securehttps://crypto.stackexchange.com/questions/31418/signal-vs-telegram-in-terms-of-protocolshttps://gizmodo.com/why-you-should-stop-using-telegram-right-now-1782557415
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SnapchatYESNOYESPHONEFREENOAndroid,iOS太过娱乐化
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Jami/ringNOOpenDHTYESYESYESNOFREEYES
Android,LINUX,MAC,WIN测试注册成功,但添加好友失败https://ring.cx/en/about/privacy-and-anonymityhttps://ring.cx/en/about/technical
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ConfideYESYESYESNONONOPHONE/EMAILFREENOAndroid,iOS,MAC,WIN
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Dust部分NOYESNONONOPHONEFREENOAndroid,iOS
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crypttalkNONONOPHONE最低¥68/月iOShttps://www.crypttalk.com/cn/privacy_policyhttps://www.crypttalk.com/cn/security_aspects
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keybaseNOSaltPackYESClientNOEMAILFREENOLINUX,MAC,WIN要求上传私钥,自己发明的加密协议https://keybase.io/docs/privacypolicyhttps://keybase.io/blog/keybase-new-key-modelhttps://blog.blahgeek.com/thoughts-on-keybaseio/
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CryptocatNOOMEMONOYESNONOFREENOLINUX,MAC,WIN没有移动端,服务器保存信息30天,作者已放弃,推荐wirehttps://crypto.cat/mission.htmlhttps://crypto.cat/security.html
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demosawLINUX,MAC,WIN
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CoverMeNOhttp官网,中国区政策限制无法注册
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DONTALKNO韩国公司开发,http官网
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部分参考资料:
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https://www.eff.org/secure-messaging-scorecard
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https://www.eff.org/node/82654
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https://www.securemessagingapps.com/
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https://www.securemessagingapps.com/about/
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