Get Started

Take Full Control of Your Organisation's Communications with the Cellcrypt Server

Cellcrypt Server isn't just secure. It's Mission-Ready.

Designed for disconnected, hostile, and compromised network environments.

Cellcrypt Server isn't just secure. It's Mission-Ready.

Designed for disconnected, hostile, and compromised network environments.

Cellcrypt Server isn't just secure. It's Mission-Ready.

Designed for disconnected, hostile, and compromised network environments.

Cellcrypt Server is a zero-trust, enterprise-grade communications platform purpose-built for organisations that require absolute control over data (including metadata) and infrastructure, and to safeguard the organization and its users. With centralised administration of communications, providing full control over users' access and policies, Cellcrypt empowers organizational mobility and offers total privacy for sensitive communications.

Cellcrypt enables secure voice and video calls, encrypted messaging, large file transfers, and conference calls—all protected by post-quantum encryption, dual symmetric algorithms, and full metadata sovereignty.

As quantum computing advances, the future of encryption faces new challenges and opportunities and Cellcrypt's post-quantum encryption safeguards sensitive communications against future quantum threats, including the Harvest Now, Decrypt Later threat.

Cellcrypt Server provides mutual authentication to ensures that secure sessions are established only between verified, authorised individuals and end-to-end encryption for any type of data in motion between smartphones, tables and desktop devices.

The Cellcrypt Server supports on-premises, private cloud, and fully air-gapped ('dark install') deployments, making it suited to classified military, government, intelligence, and critical infrastructure operations as well as for out-of-bounds communication for enterprise cybersecurity incident management and incident reponse.

On-Premises & Air-Gapped Deployment

Supports complete offline, air-gapped installations with no external network connectivity
Deployable on commercial off-the-shelf (COTS) hardware with standard Operating Systems
Ideal for classified environments, tactical field operations, and zero-connectivity installations

Supports complete offline, air-gapped installations with no external network connectivity
Deployable on commercial off-the-shelf (COTS) hardware with standard Operating Systems
Ideal for classified environments, tactical field operations, and zero-connectivity installations

Supports complete offline, air-gapped installations with no external network connectivity
Deployable on commercial off-the-shelf (COTS) hardware with standard Operating Systems
Ideal for classified environments, tactical field operations, and zero-connectivity installations

Zero-Trust Cryptographic Architecture

Assumes all networks are proactively compromised
End-to-end encryption tunnels through TLS and SRTP, overlaid with Cellcrypt's End-to-End Encryption + Post-Quantum protocols
Session keys are unique per interaction and never appear outside the devices

Assumes all networks are proactively compromised
End-to-end encryption tunnels through TLS and SRTP, overlaid with Cellcrypt's End-to-End Encryption + Post-Quantum protocols
Session keys are unique per interaction and never appear outside the devices

Assumes all networks are proactively compromised
End-to-end encryption tunnels through TLS and SRTP, overlaid with Cellcrypt's End-to-End Encryption + Post-Quantum protocols
Session keys are unique per interaction and never appear outside the devices

Data Sovereignty & Metadata Protection

All communications and associated metadata (call logs, message records, file access history) remain within your infrastructure
Ensures that no telemetry or user behaviour data is ever exposed to third parties
Complete control over encryption keys, user policies, device access, and audit logs—with no vendor reliance or Cloud Act compliance issues

All communications and associated metadata (call logs, message records, file access history) remain within your infrastructure
Ensures that no telemetry or user behaviour data is ever exposed to third parties
Complete control over encryption keys, user policies, device access, and audit logs—with no vendor reliance or Cloud Act compliance issues

All communications and associated metadata (call logs, message records, file access history) remain within your infrastructure
Ensures that no telemetry or user behaviour data is ever exposed to third parties
Complete control over encryption keys, user policies, device access, and audit logs—with no vendor reliance or Cloud Act compliance issues

True Zero-Trust vs A Walled Garden

Most enterprise communication platforms—including those branded as "secure"— assume the internal environment is trusted, and security is enforced primarily at the network boundary. However, even "secure" communications systems often rely on TLS and SRTP encrypted tunnels to encrypt data in transit, but only within a trusted perimeter.

These protocols terminate at servers or gateway devices, exposing session keys, messages, or media to inspection and compromise. This model, known as the Walled Garden, assumes everything inside the fence is safe. But what if the garden is already breached? Or worse, what if the breach is invisible?

Cellcrypt Provides True Zero-Trust Assurance with End-to-End Encryption with Post-Quantum Protection Inside Encrypted Tunnels

Cellcrypt's architecture does not stop at transport encryption (TLS/SRTP). Instead, it establishes application-layer tunnels that wrap encrypted payloads in a secondary, end-to-end encrypted envelope.

These tunnels are anchored by:

Unique session keys derived per call/message
Authenticated key exchange using ECC and post-quantum KEMs
Encryption that never terminates at the server

The Result: Even if the network, VPN, or Cellcrypt’s own infrastructure are compromised, the payload remains encrypted, unreadable, and non-replayable.

Security is more than compliance - it’s survival.

Ready to protect your communications?

Get Started