Link-s
Secure File Transfer & Sharing Solution

Encrypted sharing with no speed limits, private deployment supported
Manageable · Controllable · Traceable · Secure · Stable · Easy
Download & Try Now
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Full-Stack Private Deployment

Link-s Enterprise Edition is a complete private-deployable P2P encrypted file transfer & precise sharing system

Client

Supports Windows/Linux & all platforms, ready to use after download

Signaling Server

Connection negotiation & user authentication, cluster supported

Relay Server

Data forwarding for cross-network transfer, cluster supported

Audit Management Platform

Visual console, real-time monitoring, logs, IP management & reports

Private Deployment

All components deployed on the enterprise intranet, data stays in-domain, full autonomy and control.

Public Network Deployment Also Supported

Keys only at both ends, full encryption in transit. Adopts next-generation quantum-safe encryption ML-KEM, defends against future quantum computing threats, making harvest now, decrypt later attacks extremely difficult.

Secure Now · Secure Future

Quantum-safe encryption against future threats

Technical Highlights

One-Time Key

New encrypted tunnel per session, keys destroyed after use

AES/SM4-CTR + ML-KEM

Hybrid encryption for both security and performance

Memory Zeroization

Keys only in memory, auto-destroyed when session ends

End-to-End Encrypted Transfer

Fully encrypted transmission, private key only at sender

Streaming Encryption

Encrypt while sending, decrypt while receiving, no waiting

Breakpoint Resuming

Resume interrupted transfers right where they left off

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Technical Architecture

Access Layer
Multi-platform clients · Windows / Linux
Control Layer
Decentralized distributed cluster. Any node can access the whole network. Session and user data sync automatically across nodes. Single node failure does not affect service. Signaling service supports unlimited horizontal scaling.
Forward Layer
Relay server cluster · horizontally scalable, unlimited nodes, reliable cross-network transfer
Security Layer
IP management · precise control over unauthorized devices
Management Layer
Audit web console · log query, global reports
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Security Technology

Link-S uses the industry-leading post-quantum encryption architecture, centered on Kyber-768 (NIST-standardized post-quantum algorithm), paired with AES-256/SM4-CTR high-speed stream encryption, building an end-to-end secure transmission system that fundamentally defends against quantum cracking risks of traditional encryption schemes.

The core encryption logic follows the security principle: "Keys only at both ends, no plaintext in transit". It upgrades traditional RSA/ECC schemes while retaining high-speed performance and top-level quantum-resistant security.

Post-Quantum Secure

Kyber-768 defends against quantum computer attacks

High-Speed & Efficient

AES-256/SM4-CTR stream encryption with no performance loss

End-to-End Security

Keys only at endpoints, undecryptable by man-in-the-middle

Compliant & Reliable

NIST standard, supports perfect forward secrecy

Secure today, and significantly safer for the future

Version Comparison

VersionComponentsClientsFor Users
Free TrialPublic Control ServerReady after registration
Team EditionSingle Control Server + Single Relay Server + Audit PlatformUp to 30 clientsSMB & Departments, Unlimited P2P
Enterprise StandardSignaling Server + Relay Server (Clustered) + Audit Platform + Dedicated SupportUp to 500 clientsLarge Enterprises & Headquarters, Unlimited P2P
Enterprise UltraSignaling Server (Clustered) + Relay Server (Clustered) + Audit Platform + Dedicated SupportContact usLarge-scale Enterprises, Unlimited P2P
Free Trial
ComponentsPublic Control Server
ClientsReady after registration
For Users
Team Edition
ComponentsSingle Control Server + Single Relay Server + Audit Platform
ClientsUp to 30 clients
For UsersSMB & Departments, Unlimited P2P
Enterprise Standard
ComponentsSignaling Server + Relay Server (Clustered) + Audit Platform + Dedicated Support
ClientsUp to 500 clients
For UsersLarge Enterprises & Headquarters, Unlimited P2P
Enterprise Ultra
ComponentsSignaling Server (Clustered) + Relay Server (Clustered) + Audit Platform + Dedicated Support
ClientsContact us
For UsersLarge-scale Enterprises, Unlimited P2P

All editions support full private deployment · Data never leaves your domain · Please contact sales for pricing

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Benefits & Value

Security

Private deployment supported, data stays in-domain; AES/SM4-CTR + ML-KEM encryption protects now and future

Reliability

Signaling master-slave hot standby + unlimited relay clusters for enterprise-grade high availability

Efficiency

LAN P2P maximizes bandwidth, 100GB files transferred in minutes

Control

Account management, force logout, transfer logs, global reports

Easy & Controllable · Simple & Secure

Client · Minimalist Design

No complicated configuration or professional setup required. Get started quickly after download and achieve efficient file transfer easily.

Admin · Full Control

Support adding and deleting accounts, forcing user logout, blocking inappropriate files, flexible blacklist and whitelist management, fully controlling transfer permissions and usage rules.

Balancing Security & Efficiency — Simpler management, more secure transfer

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Start Using Link-s to Transfer Files Securely

ML-KEM + AES/SM4-CTR Encryption, Private Deployment Supported

Download & Try

Or Contact Our Service Team for Dedicated Support

© 2026 Link-s · Secure File Transfer & Sharing Solution
Contact Us
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