ContactDiscoveryService
TextSecure
ContactDiscoveryService | TextSecure | |
---|---|---|
70 | 986 | |
270 | 24,989 | |
- | 0.7% | |
0.0 | 9.9 | |
about 1 year ago | 5 days ago | |
C | Java | |
GNU Affero General Public License v3.0 | GNU Affero General Public License v3.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
ContactDiscoveryService
- Is it generally ok to store phone numbers in a firestore database?
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7 Best Open-Source Alternatives To WhatsApp In 2023
[1] https://signal.org/blog/private-contact-discovery/
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WhatsApp data leak: 500M user records for sale
Signal uses SGX for remote attestation, which presumably lets the client verify that the code running on the server is a build of the OSS code and not a modified version. But I don't know the details or if this is reliable.
SGX and remote attestation described here:
https://signal.org/blog/private-contact-discovery/
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WhatsApp data breach sees nearly 500 million user records up for sale
Signal does private contact discovery and the effort they've gone to to do this is quite impressive.
- A brief family story about convincing boomer parents to Signal
- Elon on Signal
- Absolutely Insane "Feature"
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Types of Execution Environments, Attestation and SGX
TEEs have numerous privacy-enhancing applications that may benefit users. One of them is, as discussed earlier, private contact discovery; the Signal application uses a contact discovery service enhanced using Intel SGX, a TEE technology, to protect its users' privacy. A similar application of TEEs is performing malware analysis in a remote cloud service, so that the service may not identify users by the contents of their devices, such as the applications they have installed, especially important as 98.93% of users may be uniquely identified by the list of applications they have installed.
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Twilio Incident: What Signal Users Need to Know
Signal (or, more accurately, one of its predecessors) used to use client-side private set intersection for contact discovery, but this scales poorly [1].
Now they use a solution based on Intel SGX and server-side trusted computing [2].
[1] https://signal.org/blog/contact-discovery/
[2] https://signal.org/blog/private-contact-discovery/
- Where are Signal servers located and how is it safer than Swiss-based Threema ?
TextSecure
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The xz sshd backdoor rabbithole goes quite a bit deeper
Moxie's reasons for disallowing Signal distribution via F-droid always rang a little flat to me ( https://github.com/signalapp/Signal-Android/issues/127 ). Lots of chatter about the supposedly superior security model of Google Play Store, and as a result fewer eyes independently building and testing the Signal code base. Everyone is entitled to their opinions, but independent and reproducible builds seem like a net positive for everyone. Always struggled to understand releasing code as open source without taking advantage of the community's willingness to build and test. Looking at it in a new light after the XZ backdoor, and Jia Tan's interactions with other FOSS folk.
- WhatsApp forces Pegasus spyware maker to share its secret code
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Signal: Keep your phone number private with Signal usernames
Signal has documentation on how to reproduce their Play Store builds and compare them with what you've installed locally:
https://github.com/signalapp/Signal-Android/blob/main/reprod...
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Signal v7.0.0 with phone number privacy
There's nothing on Signal blog as of yet, but Signal's git repository was tagged with v7.0.0 yesterday and we can see from the commit history since the previously tagged version (v6.74.4) that there will be a setting to hide one's phone number [1], as well as disabling the previous default behavior of advertising that one is on Signal to all their contacts already using it [2].
[1] https://github.com/signalapp/Signal-Android/commit/8797236b5... (PNP stands for "Phone Number Privacy")
[2] https://github.com/signalapp/Signal-Android/commit/6097e6c30...
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What are you shocked people are still doing nowadays?
Signal works the same but without the user tracking from Meta/Facebook. Many people use it as well but I'm surprised that a majority sticks to WhatsApp.
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Apple has seemingly found a way to block Android’s new iMessage app
Telegram and Signal solve this.
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Apple Just Confirmed Governments Are Spying on People’s Phones With Push Notifications
Sadly yes: Looks like an open issue 13290 for Signal, sounds like they were/are indeed still interacting through google's push notification service, wat, and per a link at that issue it was a chore for Tutanota to break away once they realised it was a problem some years ago (though at least they thought about it years ago? wtf Signal...)
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Building end-to-end security for Messenger – Engineering at Meta
Here is one: https://github.com/signalapp/Signal-Android/tree/main/reprod...
- Are Signal Notifications Encrypted ?
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Facebook & Messenger finally get end-to-end encryption
Rule 1: Posts to r/signal must relate to Signal.
What are some alternatives?
whatsapp-viewer - Small tool to display chats from the Android msgstore.db database (crypt12)
undiscord - Undiscord - Delete all messages in a Discord server / channel or DM (Easy and fast) Bulk delete
Signal-Server - Server supporting the Signal Private Messenger applications on Android, Desktop, and iOS
Signal-TLS-Proxy
TelegramAndroid - Fork client of Telegram app for Android.
duckduckgo-locales - Translation files for <a href="https://duckduckgo.com"> </a>
simplex-chat - SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps 📱!
session-desktop - Session Desktop - Onion routing based messenger
simplexmq - ⚙️ SimpleXMQ - A reference implementation of the SimpleX Messaging Protocol for simplex queues over public networks.
MaterialAudiobookPlayer - Minimalistic audiobook player
element-ios - A glossy Matrix collaboration client for iOS
Signal-Android - Patches to Signal for Android removing dependencies on closed-source Google Mobile Services and Firebase libraries. In branches whose names include "-FOSS". Uses new "foss" or "gms" flavor dimension: build with "./gradlew assemblePlayFossProdRelease".