RealTyme’s Encryption. Secure Today, Quantum Resilient for the Future
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Why Today’s Data Needs Quantum-Resilient, Future-Proof Protection?

Attackers are no longer just targeting live systems—they’re harvesting encrypted data today, with plans to decrypt it later using quantum computing. This “harvest now, decrypt later” strategy puts even well-secured communications at risk in the years ahead.

What We Do Today Impacts

  • RealTyme employs a multi-layered encryption framework with independent cryptographic keys and protocols at each layer — from TLS 1.3 for device-to-server transport encryption to end-to-end encryption for device-to-device communication. This ensures that even if encrypted data is intercepted in transit, it remains protected and unreadable.
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Why Zero Trust Still Matters

  • Our Zero Trust model enforces strong authentication for every user, device, and system component that is empowered with a deployment-specific PKI. This not only reduces surface-level attacks, but also ensures the level of trust.
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Towards Quantum-Resilience

  • To address future threats, RealTyme is transitioning to post-quantum cryptography by integrating newly selected standards in the hybrid way for key exchange and digital signatures. This transition also aims to achieve crypto agility in the longer term, enabling RealTyme to adapt seamlessly as new attacks or cryptographic standards emerge.
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How RealTyme Encryption Works

RealTyme employs a multi-layered, end-to-end encrypted architecture built on zero-trust principles. Let’s break down how this robust framework keeps your data safe:

Defense-in-depth: Multi-Layered Encryption Approach

RealTyme doesn’t rely on a single line of defense. Instead, it uses independent cryptographic layers, each with its own set of protocols and keys:

Transport-Level Encryption

As the initial layer of protection, TLS v 1.3 secures all data in transit between the devices and the back-end servers.

Payload Encryption

The authenticated end-to-end encryption layer, primarily tunneled within TLS v 1.3, secures the content exchanged between devices.

Independent Layers

Independent protocols with context-specific keys are applied to file sharing, broadcast, calls, and multimedia communications.

End-to-End Security Across All Communication Channels

RealTyme secures every form of communication—messages, calls, files, and device syncs—with consistent, end-to-end encryption. No matter how you connect, your data stays private, protected, and fully encrypted from start to finish.

Messaging & File Sharing

‍Protocol: Custom protocol that is additionally protected with TLS v1.3
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‍Ciphersuite: ECDHE-ECDSA-HMACSHA256-AES256CCM

Add-on: Metadata protection, server and app-side message self-destruction

One-to-One Calls (WebRTC)

Protocol: DTLS+sRTP following a custom signaling protocol (TLS v 1.3 protected)

Ciphersuite: DTLS+sRTP w ECDHE-ECDSA-HMACSHA384-AES256GCM

Add-on: Support for P2P and extra TLS layer of encryption over TURN

Conference Calls (WebRTC)

Protocol: Custom key exchange followed by insertable streams (inside DTLS+sRTP)

Ciphersuite: ECDHE-ECDSA-HMACSHA256-AES256GCM

Add-on: Support for extra TLS layer of encryption over TURN + SFU media server

Device Synchronization

Protocol: E2E encrypted multi-device state synchronization based on the existing messaging protocol.

Add-on: Edge-powered, privacy-centric device management without server-side data exposure.



Enforcing Zero Trust by Design

We enforces continuous verification of every user, device, and component—ensuring that data isn’t harvested and remains inaccessible and indecipherable without proper credentials and multi-factor authentication.

Zero-Trust Model and Public Key Infrastructure (PKI)

We establish a strong foundation of trust through a deployment-specific PKI, reinforced by a zero-trust architecture. This ensures that robust mutual authentication is continuously enforced across all layers.

Tiered Certificate Hierarchy
Uses a two-tier certificate hierarchy—Root CA, Subordinate CA, and End-Entity Certificates—enabling precise control and traceability within a specific deployment.
Customizations for Higher Control
Supports integration of enterprise or government-grade Root CAs, enabling an approved root of trust and enhanced control tailored to each deployment.
Certificate Lifecycle
Possibility to periodically renew to minimize exposure. Each device’s certificate status is continuously monitored, with the option for real-time remote wipe in the event of revocation.
Strong Mutual Authentication
Every major action—such as device-to-server connections or initiating a call or chat with another peer—requires all involved entities to undergo mutual authentication as part of the PKI.
More About Zero Trust
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Quantum Threats: Preparation for Tomorrow

Quantum computing may still be on the horizon, but its threat is already real. RealTyme’s proactive post-quantum strategy safeguards long-term data security for all users. By integrating hybrid cryptographic algorithms, we protect sensitive communications today—while future-proofing them against tomorrow’s quantum attacks.

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Post-Quantum Cryptography Transition

Our approach integrates well-established post-quantum cryptography from NIST standards with higher-key length classical schemes in a hybrid model. This mitigates current risks while building a foundation for future quantum resilience.

Key Exchange

MLKEM (based on the Kyber), along with  classical ephemeral ECDH sceheme (with higher key sizes).
Digital Signatures
MLDSA (based on Dilithium) based PKI, in conjunction with ECDSA (with higher key sizes).
Crypto Agility
We re-architect our cryptographic stack with flexibility in mind in order to be able to upgrade components without disrupting users or compromising security.
More About Our Security Standards

Post-Quantum Security for Every Sector

Government Agencies

Maintain national security by defending classified information from quantum-enabled foreign surveillance or cyber threats.
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Defense

Protect mission-critical operations, classified defense data, and military communications from advanced adversarial decryption.
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Central Government

Protect inter-agency communication, legislative data, and citizen information from future decryption and espionage.
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Public Sector

Secure citizen services, infrastructure operations, and public records from long-term threats targeting government systems.
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Businesses

Ensure business continuity and long-term data protection by securing IP, contracts, and communications against future decryption.
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Financial Institutions

Safeguard high-value transaction data and client records from “harvest now, decrypt later” schemes targeting legacy systems.
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Legal Teams

Future-proof legal case files and sensitive client communications against breaches, even if intercepted and stored now.
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Energy & Utilities

Protect critical infrastructure systems and operational data from future decryption risks that could impact national services.
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Frontliners

From healthcare workers and emergency responders to public safety officials—rely on fast, secure, and trusted communication to make life-saving decisions.
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Healthcare

Ensure long-term privacy of medical records and telehealth communications that could be exposed by future quantum attacks.
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Public Safety

Enable secure team communication between field officers, control centers, and agencies—resistant to future decryption.
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Emergency Operations

Secure real-time coordination data, crisis response communication, and logistics against interception and delayed decryption.
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All Your Encryption Questions, Answered

Securing your communication shouldn’t be complicated. Whether you're protecting sensitive data, ensuring regulatory compliance, or preparing for quantum-era threats, RealTyme has you covered.
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Explore our frequently asked questions to see how our encryption framework keeps your organization secure, compliant, and quantum-resilient—today and tomorrow.
What makes RealTyme's encryption different from others?

RealTyme applies encryption at every layer—transport, payload, and media—with independent keys and protocols, ensuring complete security even if one layer is compromised.

How does RealTyme handle quantum threats?

RealTyme uses hybrid cryptography, combining traditional and post-quantum algorithms like MLKEM-1024 and MLDSA-87, keeping systems agile and future-proof.

Is RealTyme suitable for small businesses?

Absolutely. Whether you’re a startup or a global enterprise, RealTyme’s scalable encryption suits organizations of all sizes.

Can RealTyme integrate with our current infrastructure?

Yes, RealTyme is designed with flexibility and interoperability in mind, enabling smooth integration with most IT environments.

What does end-to-end encryption mean in practice?

It means your message is encrypted on your device and only decrypted on the recipient’s device—no one in between, not even RealTyme, can access it.

Is file sharing secure on RealTyme?

Yes. Files are protected by TLS tunneling, end-to-end encryption, authenticated downloads, and automatic deletion after delivery.

Let us dive into your unique requirements and suggest the best deployment option for you, ensuring your operational and budgetary requirements.

Start Communicating Securely Today

Protect your confidential communications with RealTyme’ssecure collaboration suite. Whether you need securemessaging, file sharing, or video conferencing, RealTyme hasyou covered.

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