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List recommendations in alphabetical order (#1377)
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@@ -2,39 +2,7 @@
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title: "Real-Time Communication"
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icon: material/chat-processing
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---
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## Encrypted Instant Messengers
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### Signal
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!!! recommendation
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{ align=right }
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**Signal** is a mobile app developed by Signal Messenger LLC. The app provides instant messaging, as well as voice and video calling.
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All communications are E2EE. Contact lists are encrypted using your login PIN and the server does not have access to them. Personal profiles are also encrypted and only shared with contacts who add you.
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[:octicons-home-16: Homepage](https://signal.org/){ .md-button .md-button--primary }
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[:octicons-eye-16:](https://signal.org/legal/#privacy-policy){ .card-link title="Privacy Policy" }
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[:octicons-info-16:](https://support.signal.org/hc/en-us){ .card-link title=Documentation}
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[:octicons-code-16:](https://github.com/signalapp){ .card-link title="Source Code" }
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[:octicons-heart-16:](https://signal.org/donate/){ .card-link title=Contribute }
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??? downloads
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- [:fontawesome-brands-windows: Windows](https://signal.org/download)
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- [:fontawesome-brands-apple: macOS](https://signal.org/download)
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- [:fontawesome-brands-linux: Linux](https://signal.org/download)
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- [:fontawesome-brands-google-play: Google Play](https://play.google.com/store/apps/details?id=org.thoughtcrime.securesms)
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- [:fontawesome-brands-app-store-ios: App Store](https://apps.apple.com/app/id874139669)
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Signal has minimal metadata when [Sealed Sender](https://signal.org/blog/sealed-sender/) is enabled. The sender address is encrypted along with the message body, and only the recipient address is visible to the server.
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Signal requires your phone number as a personal identifier.
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[Sealed Sender](https://signal.org/blog/sealed-sender/) is only enabled for people in your contacts list, but can be enabled for all recipients with the increased risk of receiving spam.
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The protocol was independently [audited](https://eprint.iacr.org/2016/1013.pdf) in 2016. The specification for the Signal protocol can be found in their [documentation](https://signal.org/docs/).
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## Cross-Platform Messengers
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### Element
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@@ -69,34 +37,6 @@ When using [element-web](https://github.com/vector-im/element-web), you must tru
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The protocol was independently [audited](https://matrix.org/blog/2016/11/21/matrixs-olm-end-to-end-encryption-security-assessment-released-and-implemented-cross-platform-on-riot-at-last) in 2016. The specification for the Matrix protocol can be found in their [documentation](https://spec.matrix.org/latest/). The [Olm](https://matrix.org/docs/projects/other/olm) cryptographic ratchet used by Matrix is an implementation of Signal’s [Double Ratchet algorithm](https://signal.org/docs/specifications/doubleratchet/).
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### Briar
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!!! recommendation
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{ align=right }
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**Briar** is an encrypted instant messenger that [connects](https://briarproject.org/how-it-works/) to other clients using the Tor Network. Briar can also connect via Wi-Fi or Bluetooth when in local proximity. Briar’s local mesh mode can be useful when internet availability is a problem.
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[:octicons-home-16: Homepage](https://briarproject.org/){ .md-button .md-button--primary }
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[:octicons-eye-16:](https://briarproject.org/privacy-policy/){ .card-link title="Privacy Policy" }
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[:octicons-info-16:](https://code.briarproject.org/briar/briar/-/wikis/home){ .card-link title=Documentation}
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[:octicons-code-16:](https://code.briarproject.org/briar/briar){ .card-link title="Source Code" }
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[:octicons-heart-16:](https://briarproject.org/){ .card-link title="Donation options are listed on the bottom of the homepage" }
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??? downloads
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- [:pg-flathub: Flatpak](https://flathub.org/apps/details/org.briarproject.Briar)
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- [:fontawesome-brands-google-play: Google Play](https://play.google.com/store/apps/details?id=org.briarproject.briar.android)
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- [:pg-f-droid: F-Droid](https://f-droid.org/packages/org.briarproject.briar.android)
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To add a contact on Briar, you must both add each other first. You can either exchange `briar://` links or scan a contact’s QR code if they are nearby.
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The client software was independently [audited](https://briarproject.org/news/2017-beta-released-security-audit/) and the anonymous routing protocol uses the Tor network which has also been audited.
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Briar has a fully [published specification](https://code.briarproject.org/briar/briar-spec).
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Briar supports perfect forward secrecy by using the Bramble [Handshake](https://code.briarproject.org/briar/briar-spec/blob/master/protocols/BHP.md) and [Transport](https://code.briarproject.org/briar/briar-spec/blob/master/protocols/BTP.md) protocol.
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### Session
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!!! recommendation
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@@ -129,6 +69,68 @@ Oxen requested an independent audit for Session in March of 2020. The audit [con
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Session has a [whitepaper](https://arxiv.org/pdf/2002.04609.pdf) describing the technicals of the app and protocol.
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### Signal
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!!! recommendation
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{ align=right }
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**Signal** is a mobile app developed by Signal Messenger LLC. The app provides instant messaging, as well as voice and video calling.
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All communications are E2EE. Contact lists are encrypted using your login PIN and the server does not have access to them. Personal profiles are also encrypted and only shared with contacts who add you.
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[:octicons-home-16: Homepage](https://signal.org/){ .md-button .md-button--primary }
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[:octicons-eye-16:](https://signal.org/legal/#privacy-policy){ .card-link title="Privacy Policy" }
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[:octicons-info-16:](https://support.signal.org/hc/en-us){ .card-link title=Documentation}
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[:octicons-code-16:](https://github.com/signalapp){ .card-link title="Source Code" }
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[:octicons-heart-16:](https://signal.org/donate/){ .card-link title=Contribute }
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??? downloads
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- [:fontawesome-brands-windows: Windows](https://signal.org/download)
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- [:fontawesome-brands-apple: macOS](https://signal.org/download)
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- [:fontawesome-brands-linux: Linux](https://signal.org/download)
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- [:fontawesome-brands-google-play: Google Play](https://play.google.com/store/apps/details?id=org.thoughtcrime.securesms)
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- [:fontawesome-brands-app-store-ios: App Store](https://apps.apple.com/app/id874139669)
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Signal has minimal metadata when [Sealed Sender](https://signal.org/blog/sealed-sender/) is enabled. The sender address is encrypted along with the message body, and only the recipient address is visible to the server.
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Signal requires your phone number as a personal identifier.
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[Sealed Sender](https://signal.org/blog/sealed-sender/) is only enabled for people in your contacts list, but can be enabled for all recipients with the increased risk of receiving spam.
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The protocol was independently [audited](https://eprint.iacr.org/2016/1013.pdf) in 2016. The specification for the Signal protocol can be found in their [documentation](https://signal.org/docs/).
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## Other Messengers
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### Briar (Android)
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!!! recommendation
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{ align=right }
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**Briar** is an encrypted instant messenger that [connects](https://briarproject.org/how-it-works/) to other clients using the Tor Network. Briar can also connect via Wi-Fi or Bluetooth when in local proximity. Briar’s local mesh mode can be useful when internet availability is a problem.
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[:octicons-home-16: Homepage](https://briarproject.org/){ .md-button .md-button--primary }
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[:octicons-eye-16:](https://briarproject.org/privacy-policy/){ .card-link title="Privacy Policy" }
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[:octicons-info-16:](https://code.briarproject.org/briar/briar/-/wikis/home){ .card-link title=Documentation}
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[:octicons-code-16:](https://code.briarproject.org/briar/briar){ .card-link title="Source Code" }
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[:octicons-heart-16:](https://briarproject.org/){ .card-link title="Donation options are listed on the bottom of the homepage" }
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??? downloads
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- [:pg-flathub: Flatpak](https://flathub.org/apps/details/org.briarproject.Briar)
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- [:fontawesome-brands-google-play: Google Play](https://play.google.com/store/apps/details?id=org.briarproject.briar.android)
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- [:pg-f-droid: F-Droid](https://f-droid.org/packages/org.briarproject.briar.android)
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To add a contact on Briar, you must both add each other first. You can either exchange `briar://` links or scan a contact’s QR code if they are nearby.
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The client software was independently [audited](https://briarproject.org/news/2017-beta-released-security-audit/) and the anonymous routing protocol uses the Tor network which has also been audited.
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Briar has a fully [published specification](https://code.briarproject.org/briar/briar-spec).
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Briar supports perfect forward secrecy by using the Bramble [Handshake](https://code.briarproject.org/briar/briar-spec/blob/master/protocols/BHP.md) and [Transport](https://code.briarproject.org/briar/briar-spec/blob/master/protocols/BTP.md) protocol.
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## Types of Communication Networks
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There are several network architectures commonly used to relay messages between people. These networks can provide different different privacy guarantees, which is why it's worth considering your [threat model](https://en.wikipedia.org/wiki/Threat_model) when making a decision about which app to use.
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