Full E2E by Default
Every message is end-to-end encrypted using the MLS protocol. Not optional: it is on by default for all conversations, group chats and file sharing.
MLS ProtocolNovaE²E is a quantum-encrypted, self-hosted end-to-end encrypted messaging platform. MLS protocol, hybrid X25519 + Kyber768 key exchange, post-compromise security and forward secrecy.
Every message, every call, every file: quantum-encrypted end to end. No compromises, no backdoors, no metadata leaks.
Every message is end-to-end encrypted using the MLS protocol. Not optional: it is on by default for all conversations, group chats and file sharing.
MLS ProtocolEncryption keys never leave the device. Not stored on servers, not in the cloud. Even with full server access, messages remain unreadable.
Zero KnowledgeHybrid X25519 + Kyber768 key exchange protects against quantum computer attacks. AES-256-GCM with quantum-generated IVs keeps messages safe in a post-quantum world.
X25519 + Kyber768If a session key is ever compromised, future and past messages remain secure through forward secrecy and automatic key ratcheting.
Forward SecrecyThe server is designed to be untrusted. Even if the server is compromised, no message content or encryption keys can be extracted.
Server-Side BlindCross-device identity verification ensures you are always talking to the right person. Fleet device verification for enterprise MDM deployments.
Fleet MDM SupportA feature-by-feature comparison with the most popular enterprise and secure messaging platforms.
| Feature | NovaE²E | Signal | Slack | MS Teams | Element | Threema |
|---|---|---|---|---|---|---|
| Full E2E by default | Yes | Yes | No | No | NoOpt-in only | Yes |
| Post-quantum encryption | YesX25519 + Kyber768 | YesPQXDH | No | No | No | No |
| Local-only key storage | Yes | Yes | No | No | No | Yes |
| Messaging Layer Security (MLS) | Yes | No | No | No | No | No |
| Consistent crypto protocol | Yes | Yes | No | No | ~PartlyNot default | No |
| Post-compromise security | Yes | Yes | No | No | ~PartlyNot default | No |
| Forward secrecy | Yes | Yes | No | No | Yes | Yes |
| Zero trust architecture | Yes | Yes | ~PartlyNot native | ~PartlyNot native | No | Yes |
| Device verification | Yes | Yes | Yes | Yes | No | Yes |
| Fleet device verification | Yes | No | No | No | No | No |
| Encrypted backup & restore | Yes | Yes | No | No | Yes | Yes |
| Always E2E file sharing | Yes | Yes | No | No | No | Yes |
| Encrypted group calls | Yes | Yes | No | No | No | Yes |
| Spam-free federation | Yes | No | No | ~PartlyOpen default | ~PartlyOpen default | No |
| SSO with SCIM 2.0 | Yes | No | Yes | Yes | No | No |
| Self-hosted / on-premises | Yes | No | No | ~PartlyLimited | Yes | Yes |
| Quantum-enhanced encryption | Yes | No | No | No | No | No |
| AI-powered threat detection | Yes | No | No | No | No | No |
Based on the default configuration of each platform. Signal post-quantum key agreement: PQXDH. On small screens, swipe the table sideways.
Our internal rating, based on encryption strength, architecture, key management and compliance features.
Battle-tested open standards with quantum-enhanced security layers.
Messaging Layer Security, the IETF standard for scalable E2E group messaging. Tree-based key derivation for efficient group key management.
Proteus / MLS HybridHybrid X25519 + Kyber768 (NIST ML-KEM) key encapsulation inside MLS. Classical elliptic curves plus lattice-based cryptography, built to resist both classical and quantum attacks.
X25519 + Kyber768 HybridAll inter-instance communication is encrypted via the QMesh/1.0 protocol. HMAC-SHA512 signatures prevent spoofing and replay attacks.
QMesh/1.0 ProtocolRuns on your own dedicated server. Full control over data, keys and infrastructure, no shared tenants. Your data stays yours.
Docker / KubernetesHow your messages travel through the NovaE²E network. The server in the middle only ever sees ciphertext.
From zero to fully encrypted enterprise messaging in under 10 minutes.
Choose your plan. NovaE²E is included in all plans: Starter, Professional and Enterprise.
NovaOS automatically provisions a dedicated EU cloud server and deploys the full NovaE²E stack with quantum encryption.
Create accounts, set up SSO and start messaging. Device verification, encrypted calls, file sharing: all E2E from day one.
Open it in your browser instantly. Native apps for your devices are on the way.
Launch the full encrypted messenger directly in your browser. No download, no installation, just secure communication.
Push notifications & biometric auth
Windows, macOS & Linux
iPhone & iPad with Face ID
NovaOS subscription required. View plans
Deploy NovaE²E on your own dedicated server today. Quantum-encrypted, self-hosted, zero trust.