Education

Secure learning on managed devices

4markets in production

Edutor Technologies · Cosyn Ltd

Client: Edutor Technologies · Cosyn Ltd
Industry: Education
Region: India, UAE, USA and the Caribbean
Engagement: Full lifecycle
Platforms: Android, iOS and Windows

The challenge

Edutor needed to govern licensed educational content, assessments and student tablets across four markets, so that only authorized users and devices could open content, online or offline. Cosyn Ltd needed secure subjective exams on managed tablets without depending on internet access.

What the system had to handle

Only authorized users and devices can open licensed content
Content and exams that keep working offline
Distraction-free student tablets under remote administrative control
Thousands of concurrent users in four markets

Our role

End-to-end technology partner across the Edutor product suite and the Cosyn Ltd exam platform: requirements, architecture, Android, iOS and Windows apps, backend, deployment and infrastructure.

How it works

How licensed content stays protected

1Publisher licensingTeachers and publishers assign or revoke textbooks per student in the Ignitor portal
2License engineDynamic issuance by a cloud rules engine
3Device-bound deliverySide-loaded or on-demand delivery to the student's device
4Encrypted storageEncrypted SQLite keeps content usable offline
5Real-time revocationKeys revoked from the cloud, with no physical access needed

Four connected systems

Licensing

Device-bound DRM

Built

License engine, encrypted on-device store, real-time key revocation

Instant blocking
Publisher transparency

Assessments

Assessment engine

Built

MathML authoring with templates, a player with 10+ question types and auto-grading, exams rebuilt after device failure

Thousands of concurrent users

Devices

Device control and MDM

Built

Shell, C and JNI Android customization; network blocking and app install control; Samsung Knox and Intel MDM

Deployed on thousands of devices
Less admin overhead

Exams

Cosyn Ltd tablet exams

Built

Stylus writing with real-time autosave, an invigilator app with live control per student, offline-first sync with local failover

Paperless exams
Control without internet

What we built

Device-bound textbook delivery engine

Teachers assign or revoke digital textbooks per student, in step with institutional repositories. Books are side-loaded or downloaded on demand, and publishers control licences through the Ignitor portal, on Android, iOS and Windows.

Encrypted media players and authoring tools

A proprietary encrypted video format, FFmpeg-based players with real-time decryption, and SCORM/EPUB-aware automated content packaging. 70%+ less manual packaging.