Dencrypt A/S - Secure communication for smartphones

The company’s innovative solution makes secure communication possible over non-secure infrastructure, such as cellular networks and public Wi-Fi networks.

Dencrypt A/S provides secure mobile voice / video calls and secure instant messaging on iOS or Android smartphones for users in the defence, government, police, and corporations.

Security is achieved by applying end-to-end encryption between devices using Dencrypt’s ‘dynamic encryption’ principle. This provides an optimal level of security to the user, preventing eavesdropping and unauthorised access to data.

User-friendly secure communication solutions for military, government, police and corporations.

Dencrypt’s solution combines a high security level with user-friendly operation on everyday devices such as standard smartphones without the need for external hardware or special equipment.

The company’s product is Common Criteria certified and has accreditation from NATO and the Danish Defence.


Nato-accredited communication solution for defence use

Decrypt has a proven track record of supporting Danish Defence, Nato, MoDs and world governments during daily and critical operations with its cutting-edge secure communication solution.

The solution offered to these organisations relies on Dencrypt’s proprietary dynamic encryption technology for protecting communication. The solution is a closed communication system where the system administrator has full control over who can access the system. This includes adding and removing users, as well as establishing call privileges from the local phonebook.

The solution also allows organisations to communicate across multiple systems. This is enabled by Dencrypt’s bridge module that federates systems into one coherent communication network while still allowing system administrators to define individual user privileges.

Dencrypt’s advanced solution works on standard data networks, including cellular, Wi-Fi, satellite, and lower bandwidth channels.

Experienced staff to ensure customer satisfaction

Customer satisfaction is Dencrypt’s priority. Dencrypt employs staff and executives with strong knowledge and experience in understanding the needs of customers and converting this to cutting-edge solutions.

Dencrypt’s staff are ready to assist customers on the phone, via email, or through our dedicated customer support portal. An experienced team of software development and cryptography professionals monitor technology and security trends to continuously develop and improve the solution.

The company’s network of carefully selected sales partners can offer customers a high level of service and local support.

Secure smartphone software for sensitive communications

Dencrypt aims to offers secure communications combined with user-friendly operation to ensure efficient use in everyday military operations and critical missions. Compatible with any standard smartphone, there is no need for any additional hardware.

The solution is delivered as a Cloud service or as an enterprise (on-premises) deployment. Common Criteria certification ensures that Dencrypt’s product is developed securely with third-party validation.

Key advantages of Dencrypt’s software include:

  • Dynamic encryption along with AES-256 or a proprietary inner algorithm
  • End-to-end encrypted calls and messages on mobile devices
  • Forward secrecy: Diffie-Hellman key exchange
  • Support for Android and iOS-based devices
  • Closed secure phonebook
  • Common Criteria certification for Dencrypt Talk (iOS) and Dencrypt Server System
  • NATO and the Danish Defence accreditation

Innovative smartphone apps for secure communication and messaging

iOS and Android smartphones apps, Dencrypt Talk,  Dencrypt Message and Dencrypt Connex, provide a cutting-edge communication solution.

Dencrypt Message enables users to exchange text messages, photos, recorded audio, and location information.

Dencrypt Talk offers dynamic encryption for secure mobile voice communication. Featuring a user-friendly interface, it can be used by users for all conversations as an integrated part of their day-to-day activities.

Dencrypt Connex (only available for iOS) combines the Voice and Message app into one, with additional features such as Video call, Message timing constraints, (e.g., auto delete after timeout), and Instant location sharing (emergency button).

Group calls are supported, and users may be added to ongoing calls. Accounts are created in the Dencrypt Server System, which handles user management and call groups.

Server solutions for encrypted messaging communication

Dencrypt Server System features infrastructure that allows secure mobile communication using the Dencrypt Talk and Dencrypt Message smartphone apps. It is Common Criteria certified and can be delivered as a Cloud product, as well as an enterprise solution, for defence organisations requiring full control over their communication solution.

Dencrypt Core for securing data communication

Dencrypt also offers dynamic encryption for other applications. Dencrypt Core is a module developed specifically for partners, containing the crypto components required to integrate dynamic encryption into existing or planned products. It enables all types of data connections to be secured by dynamic encryption.

Dencrypt works with its partners throughout the project lifecycle, from requirement specification, system design, implementation, delivery, and support.

About us

Dencrypt A/S is a Danish company that specialises in developing and providing solutions based on the principle of Dynamic Encryption.

Dencrypt was established to enable everyone to communicate in confidence. Dencrypt combines advanced encryption technology with user-friendly operation.


Dencrypt Communication Solution provides secure mobile voice & video calls and secure instant messaging on the end-user’s daily smartphone (iOS or Android). The solution prevents eavesdropping as well as unauthorized data access.


Connex is a user-friendly smartphone application that protects your smartphone conversations with state-of-the-art Dynamic Encryption over non-secure digital infrastructure such as Wi-Fi hotspots, mobile networks, and satellite links.

Connex features end-to-end encrypted voice, video, and messages. The app is downloaded from app stores or distributed via a mobile device management system.

Server. The Dencrypt Server System provides the communication infrastructure and handles call setup, message routing, phonebook distribution, and user management. The server is offered as an Enterprise solution or a Cloud service.

Dencrypt Core. Dencrypt offers Dynamic Encryption for other applications. Dencrypt Core is developed specifically for partners as a module containing the crypto components required to integrate Dynamic Encryption into existing or planned products.

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