Qt An E2EE post-quantum messenger core in Rust (10k connections on 124MB RAM
QT is a technical prototype for an end-to-end encrypted messenger core written in Rust, featuring post-quantum cryptography and the Double Ratchet algorithm. The project aims to provide privacy-resistant communication infrastructure that avoids phone number registration and resists government mandates like the EU's Chat Control. While the core components are tested and functional, the system lacks a complete user interface, public server deployment, and independent security audits required for daily use.
- ▪The project implements X3DH, PQXDH, Double Ratchet, Sealed Sender, and Noise Protocol in Rust with passing automated tests.
- ▪It uses cryptographic key-based identity to eliminate the need for phone numbers or email addresses during registration.
- ▪The prototype includes a tested Android app and server that can deliver messages without reading their content.
- ▪Critical missing features include a full conversation interface, TLS-protected internet-accessible servers, and external security audits.
- ▪The development is motivated by concerns over privacy laws such as the EU's Chat Control and the desire for backdoor-resistant design.
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Record
| Original publisher | GitHub |
| Canonical URL | https://github.com/moral666/QT |
| Publication time | Sun, 11 Oct 2026 23:52:23 +0000 |
| Retrieval time | 2026-10-12T01:44:09.123Z |
| Last seen | 2026-10-12T01:44:09.123Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | eJ7BXJbUEBpP |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
QT Um protótipo técnico do núcleo criptográfico e de transporte de um mensageiro E2EE — X3DH, PQXDH (pós-quântico), Double Ratchet, Sealed Sender, Noise Protocol, tudo implementado em Rust, compilado e testado a sério. Não é um produto acabado nem pronto para conversas reais — ver a secção "Sê honesto comigo: isto já funciona?" já a seguir, antes de investires tempo a explorar isto. Read this in English → Contexto Este projeto nasceu de um interesse genuíno em privacidade e segurança de sistemas — em particular, na questão de como construir infraestrutura de comunicação que seja resistente a backdoors por desenho, não só por política (motivada, entre outras coisas, por leis como o "Chat Control" discutido na União Europeia).
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Excerpt limited to ~120 words for fair-use compliance. The full article is at GitHub.