DCS — Data-Centric Security

Security lives inside the document itself.

Wherever your data goes, DCS protects it.

DCS (Data-Centric Security) is an enterprise-grade data security solution that pioneers a shift in mindset from “protecting the network perimeter” to “protecting directly at the file level” (File-level Protection).

By combining operating-system kernel-level encryption, fine-grained privilege control and centralized policy management, DCS creates a durable layer of protection that follows the file throughout its lifecycle: from creation and internal storage, through transmission via the cloud, to sharing with partners or interaction with Artificial Intelligence (AI) applications.

Features

AISA DCS feature set

Supports more than 400 file formats, including native CAD and engineering files.

Data encryption & access control

  • Automatic, intelligent kernel-level (Kernel Ring 0) encryption that protects data even when files leave the enterprise.
  • Fine-grained permissions by user and department: view, edit, print, copy and share.
  • Supports bulk encryption of existing documents and centralized adjustment of access rights.

Prevent copying & data leaks (Local DLP)

  • Control copy/paste, drag-and-drop, PDF virtual printing and screenshots.
  • Two-way USB management with an allow-list of approved devices.
  • Dynamic watermark showing identity, device, time and logo to support tracing.

Secure sharing & permission revocation

  • Share encrypted documents with partners, limiting rights to view, edit, print and save copies.
  • Set passwords, limit the number of opens, expiry dates and permitted devices.
  • Approve decryption requests and change or revoke access remotely.

Time-limited offline access (Offline Protection)

  • Allow encrypted documents to be used without an Internet connection for the licensed period.
  • Automatically lock document access when the offline period expires.

AI monitoring & audit logs (Monitoring & Audit)

  • Track use, copying, movement and sharing of documents.
  • Support recording events of files uploaded to AI platforms, the cloud and online applications.
  • Centralized management, AD/LDAP identity synchronization, and log search and export for audits.

Data backup & recovery (Backup & Recovery)

  • Automatically back up important documents to an internal server according to policy.
  • Keep multiple versions and support data recovery after incidents or ransomware attacks.
  • Back up and restore the management system configuration.
Technology

DCS technical standards and technology

High-standard hybrid cryptography architecture (Hybrid Cryptography)

  • File content encryption: Uses AES-256 (CTR mode) with nonce/counter control and integrity verification. Real-world throughput reaches 20–50 GB/minute.
  • Key management: Uses RSA-2048 key pairs (per NIST recommendations) to protect AES keys per user/group. The entire key lifecycle (generation, distribution, storage, revocation) is managed centrally.
  • File integrity: File size after encryption grows by only about 1 KB. Testing on more than 1,000,000 files showed no damage to the format structure.

Operating-system kernel technology (Kernel-Level Minifilter Driver)

  • Ring 0 protection: The encryption module runs directly at the kernel level, completely separated from the user interface (Ring 3), reducing the risk of being disabled by malware.
  • Encrypt early – decrypt late: Data is always encrypted on disk and in cache. It is decrypted only temporarily in RAM when an authorized application makes a valid read.
  • Zero Plaintext Footprint: No plaintext data is written to disk, no temporary files are created, and cache memory (pagefile, crash dump) is cleaned automatically to prevent data extraction.

Technical specifications & system compatibility

CriteriaDetailed technical specifications
Server environmentWindows Server 2012 / 2016 / 2019 / 2022; Apache Tomcat web service architecture / internal database.
Client environmentCompatible with Windows XP, Windows 7, Windows 8, Windows 10 and Windows 11 (64-bit supported).
Application & format compatibilitySupports more than 400 file formats: Office (Microsoft Office, OpenOffice, PDF, TXT, CSV...); Graphics & engineering design (SolidWorks, AutoCAD, CATIA, Inventor, ZWCAD, Pro/ENGINEER, Altium Designer, CorelDRAW, Photoshop...); Software development & R&D (Visual Studio, MATLAB, Delphi, C/C++ source code, Python...).
Management infrastructure integrationAutomatically synchronizes the user directory and department structure via Microsoft Active Directory (AD) or LDAP. Supports importing lists via standard Excel files.
Network storage protectionEncrypts documents stored on shared NAS / SAN / file servers directly, without requiring any intrusive software on the file server.
Latency & CPU loadImpact on workstation CPU resources is under 3%; users notice no delay when opening, saving or editing files.
Deployment

Deployment according to real needs

AISA works with the enterprise to survey the data to be protected, the applications in use and the sharing flows. The Demo and proof of concept (PoC) help verify compatibility, protection effectiveness and user experience before wide rollout.

Notes

  • Functional scope depends on the release version, licensed modules and system configuration.
  • Watermarks act as a deterrent and support tracing; they cannot prevent someone from photographing the screen with an external camera.
  • DCS is a powerful technical tool; full legal compliance must be combined with the enterprise's internal information security policies.
Four questions

What does DCS let an enterprise decide for each document?

View DCS Demo

Can it be accessed?

DCS determines who may open a document — and who may not.

DCS determines who may open a document — and who may not.

  • Open permission is bound directly to the file and authenticated per user, group or department.
  • People without permission cannot read the content, even if they obtain the file via email, USB or the cloud.
  • Set time-limited permissions; in supported configurations, grant time-limited offline access.
  • Revoke permissions immediately when an employee leaves or a project ends.

Can it be shared?

DCS determines who a document may be sent to and under what conditions it may be shared.

DCS determines who a document may be sent to and under what conditions it may be shared.

  • Share with employees, suppliers and partners according to policy; recipients can use the document only within the permissions granted.
  • Forwarding control: a file forwarded to an unauthorized person still cannot be opened.
  • Set an expiry for shared documents and revoke when no longer needed.
  • Logs record who received and used the document.

Can it be copied?

DCS controls copying, printing and screenshots of documents.

DCS controls copying, printing and screenshots of documents.

  • Control copying content, saving other copies, printing and screenshots in supported environments.
  • Copying a file to USB or the cloud does not mean the recipient can open its contents.
  • Dynamic watermarks show the user's name and access time, deterring leaks and supporting tracing when one occurs.

Can AI tools process it?

DCS helps enterprises decide which documents may be fed into AI tools.

DCS helps enterprises decide which documents may be fed into AI tools.

  • Enterprises classify data into three zones: AI-permitted, AI-restricted and confidential data not to be used with AI.
  • Protected documents cannot be copied, shared or moved out of the approved environment to be fed into public AI.
  • Reduce Shadow AI risk when combined with an AI usage policy and data classification.
FAQ

Frequently asked questions

Data-centric security — what is DCS?

Data-Centric Security is a security model that binds protection policies directly to data and documents.

Control continues to exist even when a file is copied, emailed, stored on another device or shared with a partner.

How is DCS different from DLP?

Data loss prevention (DLP) detects and stops data from leaving the enterprise via email, USB, websites or the cloud.

DCS protects directly at the file and keeps controlling how the file is used after it has been shared. The two solutions complement each other.

How is DCS different from DRM?

Digital rights management (DRM) controls usage rights for a document such as viewing, editing, printing or sharing.

DCS goes further: it protects data throughout its lifecycle, combining encryption, permissions, audit logs and control of documents after they leave their original environment.

What types of data does DCS protect?

DCS protects enterprise files and documents in the following groups:

  • Office: Microsoft Office, PDF.
  • Engineering: drawings, CAD files, R&D documents.
  • Development: source code.
  • Business: contracts, quotations, customer data, intellectual property.

The AISA team checks compatibility with specialized software or formats during the survey phase.

How are files protected?

Files are encrypted and bound to a usage-rights policy from the start. The policy clearly defines:

  • Who may open the file.
  • Who may edit it.
  • Who may print it.
  • Who may copy it.
  • Who may share it.
  • How long the file may be used.
Does DCS encrypt files automatically?

Yes. DCS configures automatic encryption according to policy, reducing reliance on manual user actions. Protection runs in the background and does not noticeably change how employees work day to day.

Can I control who may view, edit, print and share files?

Yes. Enterprises can apply the full set of permissions:

  • View, edit, print, copy.
  • Screenshot, share, forward.

Permissions are set by user, group, department, project or document type.

Can access be revoked after a file has been sent outside?

Yes. With persistent file control (Persistent File Control), enterprises can revoke access to documents remotely in supported configurations. Useful when:

  • A file was sent by mistake.
  • A project has ended.
  • A partner no longer needs access.
  • An employee leaves.
Can DCS be deployed on-premise?

Yes. DCS can be deployed in an on-premise environment for enterprises that want to keep data in internal infrastructure — suitable for R&D data, intellectual property or especially sensitive data.

Does DCS support Cloud and Hybrid?

Yes. DCS is architected to fit:

  • On-premise.
  • Cloud.
  • Hybrid.

The specific deployment model depends on each enterprise's infrastructure, security requirements and data policy.

Does DCS integrate with Active Directory?

Yes. DCS automatically synchronizes the user directory and department structure via Microsoft Active Directory (AD) or LDAP, and supports importing lists via standard Excel files.

Does DCS integrate with SIEM or SOAR?

Yes. DCS integrates with security monitoring and operations systems:

  • SIEM (Security Information and Event Management) — centralizes and analyzes security events.
  • SOAR (Security Orchestration, Automation and Response) — automates incident response workflows.

The AISA team confirms the specific integration capability against the systems the customer actually uses.

Does DCS have an API?

Yes. DCS provides an API (Application Programming Interface) by module and deployment architecture, used to integrate with management systems, automation or other enterprise applications.

Does DCS slow down computers?

DCS protects data with minimal impact on the user experience. Real-world performance depends on:

  • File type and size.
  • The software in use.
  • Device and network configuration.

For CAD, R&D or specialized application environments, AISA runs a trial (POC) before wide rollout.

According to the specifications, the impact on workstation CPU resources is under 3%; users notice no delay when opening, saving or editing files.

Do users have to change how they work every day?

Not significantly. Protection policies run automatically in the background — users keep opening, editing and saving files in their familiar workflow.

Does DCS support offline work?

Yes. In supported configurations, enterprises grant time-limited offline access — useful for employees who are:

  • On business trips.
  • Working outside the office.
  • Working in areas with an unstable network.
Which encryption algorithm does DCS use?

DCS uses AES-256 (CTR mode) to encrypt file content and RSA-2048 key pairs to wrap and protect keys per account or group. An encrypted file grows by only about 1 KB.

Which operating systems does DCS run on?

Workstations: Windows XP, 7, 8, 10 and 11 (64-bit). Servers: Windows Server 2012 / 2016 / 2019 / 2022.

Does DCS protect documents on NAS / file servers?

Yes. DCS encrypts documents stored on shared NAS / SAN / file servers directly, without requiring any intrusive software on the file server.

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