Articles
CITADEL – Secure Licensing Platform

Marketing and Outreach Team
14 Oct 2025
6 Min Read
AIC’s CITADEL defines a new benchmark for defence-grade software licensing — cryptographically sealed, policy-aware, and tamper-evident.
CITADEL is AIC’s next-generation secure licensing platform, engineered to protect mission-critical software assets across air-gapped and connected domains. Built on advanced ECDSA and post-quantum ready algorithms, CITADEL delivers a resilient framework for software assurance in UK defence and government systems.
By aligning with NCSC and ISO 27001 standards, the platform supports both offline and cloud-linked activation workflows — ensuring compliance from lab to deployment.
AIC integrates Azure Key Vault, .NET 9 cryptography APIs, and policy-based validation logic to enforce zero-trust principles across every activation event. Learn more at the project page or explore related secure engineering resources via Microsoft Azure Security Centre.
CITADEL represents a step-change in how secure software entitlement, integrity validation, and revocation are handled in MOD environments.
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Marketing and Outreach Team
AIC’s Marketing and Outreach Team builds visibility and trust across Defence and security. We deliver strategic campaigns, thought leadership, and stakeholder engagement while balancing transparency with discretion. Our mission is to position AIC as a trusted, innovative partner to the UK MoD and beyond.