ContactDiscoveryService
Mechanics-of-MobileCoin
ContactDiscoveryService | Mechanics-of-MobileCoin | |
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70 | 21 | |
270 | 28 | |
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0.0 | 2.4 | |
about 1 year ago | 4 months ago | |
C | TeX | |
GNU Affero General Public License v3.0 | - |
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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 ?
Mechanics-of-MobileCoin
- If you were wondering why Triptych is taking so long 👇
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WhatsApp competitor Signal plans to offer payment features with cryptocurrencies soon
Source: a book-length overview of MobileCoin written by a respected member of the Monero community.
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For some in depth details, The Mechanics of MobileCoin
Seems like this isn't getting much circulation yet, not the easiest thing to find despite its importance. The Mechanics of MobileCoin, First Edition published April 6, 2021.
- Bought MOBILECOIN? You might have been SCAMMED - 37.5 MILLION coins were PRIVATELY sold at 80 CENT per coin
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how is this NOT a cash grab?
That's not the official whitepaper, this is a very outdated spec - this is the latest up-to-date whitepaper https://github.com/UkoeHB/Mechanics-of-MobileCoin/blob/master/Mechanics-of-MobileCoin-v0-0-39-preview-10-11.pdf
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Mobilecoin - What I've gathered (because information is SCARCE)
Blockchains can use DAGs. Check out this pdf document which you can find in this github repo. It explains some details of mobile coin.
- Alternative to Signal
- Thoughts on Ristretto abstractions over curve E25519 with Schnorr-style multilayered linkable spontaneous anonymous group signatures?
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Signal Messenger just announced that they will integrate Mobilecoin (MOB) as a payment method (already working in the UK)
It is based on monero, from their whitepaper edit of zero to monero it looks to be Monero + Stellar Consensus with SGX so they're trading some privacy and a lot of decentralisation for speed.
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Help Us Test Payments in Signal
This whitepaper is not the whitepaper I wrote back in 2017. We took that down because it was ultimately not the design we implemented. The full system design can be found here: https://github.com/UkoeHB/Mechanics-of-MobileCoin/blob/maste....
What are some alternatives?
whatsapp-viewer - Small tool to display chats from the Android msgstore.db database (crypt12)
session-desktop - Session Desktop - Onion routing based messenger
TextSecure - A private messenger for Android.
bitmonero - Monero: the secure, private, untraceable cryptocurrency
Signal-Server - Server supporting the Signal Private Messenger applications on Android, Desktop, and iOS
TelegramAndroid - Fork client of Telegram app for Android.
LibreSignal - LibreSignal • The truly private and Google-Free messenger for Android.
simplex-chat - SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps 📱!
fog - DEPRECATED: Repo Contents moved to https://github.com/mobilecoinfoundation/mobilecoin
simplexmq - ⚙️ SimpleXMQ - A reference implementation of the SimpleX Messaging Protocol for simplex queues over public networks.
fast_yaml - Fast YAML native library for Erlang / Elixir