LiuNian Collaboration: Future-Ready Secure Collaboration Foundation
Distributed Architecture: No Single Point of Failure, Resilient and Robust
LiuNian Collaboration is based on a decentralized peer-to-peer network topology and a hybrid DAG data structure. All workspace metadata is shard-stored on participant nodes rather than relying entirely on central servers. Each team can independently choose to deploy lightweight routing services or a fully p2p network for direct node-to-node synchronization. Unlike the central database design of traditional SaaS tools, LiuNian employs an "edge storage + smart sharding" strategy: each client node caches the complete workspace index, achieving consensus within trusted clusters using a variant of the RAFT consensus algorithm. This architecture natively supports offline writing and active-active synchronization. Even if part of the network is interrupted, collaboration units can operate independently and achieve incremental merging upon recovery. This means enterprises are no longer constrained by the server load limitations of a single vendor; the SLA is guaranteed by the distributed network itself, and scaling costs approach zero.
End-to-End Encryption Logic: Zero-Trust Data Protection Model
LiuNian enables military-grade end-to-end encryption by default. All collaborative content (text, file summaries, comments, version history) is encrypted locally. The system uses a two-layer key system: a unique symmetric key (AES-256-GCM) encrypts the data blocks, and this key is then wrapped using an asymmetric algorithm (X25519) for the public keys of each member in the workspace. There is no plaintext channel between sender and receiver; interceptors on the transmission path cannot parse the specific content. Furthermore, LiuNian implements "metadata encryption" – even document titles, creator information, and member lists are hidden, readable only by participants. Key negotiation is fully completed on the client side; the control plane only retains signed and verified public key envelopes, preventing server-side snooping. It also supports regular key rotation and forward secrecy, protecting historical messages even if long-term keys are compromised. This design resists physical intrusion, man-in-the-middle attacks, and third-party data access, providing a solid cryptographic foundation for enterprises to meet GDPR and Classified Protection 2.0 requirements.
Thoroughly Solve Data Redundancy Issues in Team Collaboration
Traditional collaboration tools (e.g., shared drives or online documents) often generate numerous duplicate copies: each member saves different versions of the same file, and discussion attachments lead to storage bloat. LiuNian introduces a "global deduplication engine" based on content addressing + "Variable RS Erasure Coding". All file blocks and text paragraphs are fingerprinted via SHA-3 hash; the same content retains only one physical copy within the distributed storage pool. When team members reference the same chart or code snippet across multiple pages, the system only stores reference pointers, not duplicate data. Additionally, intelligent semantic version management uses a differential synchronization algorithm (similar to RDC), transmitting only binary patches for document updates rather than entire files. For large team collaboration, LiuNian automatically records data block heat, archiving cold data to low-redundancy storage pools while maintaining high-speed access for active data. Through these mechanisms, the redundancy rate is reduced by an average of over 82%, while also reducing network load and backup overhead. More importantly, administrators can view global data deduplication reports in real-time, without worrying about duplicate submissions and version divergence. LiuNian truly elevates team storage efficiency and data consistency simultaneously, unleashing productivity.
Furthermore, LiuNian's distributed background task scheduling system can periodically perform deduplication compression and data defragmentation without administrator intervention. The system supports "progressive synchronization": new members joining a workspace preferentially pull indexes and recent active data, fetching historical versions on demand, avoiding bandwidth waste from one-time full synchronization. Combined with the previously mentioned end-to-end encryption, deduplication is equally effective on ciphertext domains – using order-preserving hashing and private information retrieval techniques to identify duplicate ciphertext blocks without decryption, balancing privacy and efficiency. This represents a technical depth unreachable by traditional cloud drive products.
Technical Comparison: LiuNian vs. Traditional Collaboration Tools
| Comparison Dimension | LiuNian Collaboration | Traditional Collaboration Tools (e.g., SaaS Documents/Shared Drives) |
|---|---|---|
| Data Security Model | End-to-end encryption + zero-trust architecture + metadata concealment; client-side key management, server never accesses plaintext; supports forward secrecy and offline encryption. | Transport encryption (TLS) + server-side static encryption, but cloud providers hold the keys; platforms can access user data to meet compliance or for advertising push; data sovereignty belongs to the service provider. |
| Private Deployment Support | Full-featured private version with one-click deployment scripts (Docker/K8s), operable in fully offline intranet environments; supports hybrid cloud mode and edge node self-registration; no mandatory connection to a license server. | Mostly SaaS-only; enterprise versions may offer on-premise deployment but are often expensive with feature cuts and require periodic usage data backhaul; dependence on external databases and licensing services, interruptions may lead to lock-in. |
| API Openness | Fully open RESTful + GraphQL API, built-in Webhooks and client SDKs (Python/JS/Java); supports organization-level tokens and fine-grained permission policies; allows users to extend plugins or even integrate custom bots. | APIs are typically limited to premium plans with call frequency restrictions, non-transparent standard fields; plugin marketplaces are closed for review; many core operations cannot be automated. |
| Data Redundancy & Collaboration Efficiency | Content-addressed global deduplication + differential sync + RS erasure coding; edge storage utilization increases 2-4x; intelligent version merging, no duplicate submissions. | Prone to generating large amounts of redundant copies; file version conflicts require manual merging; linear storage cost increase; multi-copy synchronization wastes bandwidth. |
* Traditional tools refer to mainstream standard collaboration platforms (e.g., shared cloud storage, universal online document libraries). LiuNian demonstrates significant leadership in security, controllability, and architectural advancement.
Compliance
LiuNian Collaboration was designed from the outset to adhere to high-level domestic and international privacy regulations. The product complies with the Personal Information Protection Law, Cybersecurity Law, and ISO 27001 information security management requirements. End-to-end encryption mechanisms and private delivery capabilities help regulated industries such as finance, healthcare, and government meet data localization and audit compliance needs. The system also provides full operation logs, permission approval chains, and data retention policies, supporting third-party security auditing.
We adhere to the principle of transparency: all client code is also open source for security review, with no hidden data collection behavior. It also complies with GDPR's right to be forgotten protocol, allowing secure erasure upon administrator request. For enterprises undergoing Classified Protection Level 3 certification, deployment topology adaptation solutions are available. Compliance documentation can be requested from the sales team (via official email channels), but as our landing page does not include forms, please contact us using the footer information.
About LiuNian Collaboration
LiuNian is a core R&D project under 广州流念投资有限公司 (Guangzhou Liunian Investment Co., Ltd.), dedicated to building secure, privacy-first next-generation collaboration software for global teams. The product integrates cutting-edge cryptography and distributed systems engineering practices, developed over three years by a team of senior engineers and security experts. We firmly believe that data sovereignty should return to users – collaboration tools should fundamentally be transparent, controllable, and surveillance-free. Therefore, from the very first version, LiuNian has adhered to end-to-end encryption and local-first principles; all clients can work offline, completely breaking free from cloud lock-in. LiuNian has been successfully deployed in multiple private projects, gaining high trust whether for remote team collaboration or government/enterprise internal data flow. The company continues to invest in foundational R&D, actively participates in standardization organizations, and promotes the future of distributed collaboration protocols.
If you are interested in technical whitepapers or on-premise deployment solutions, please feel free to contact us through official channels. We will provide detailed, non-intrusive support. Business communication is transparent and free from misleading content.