The architectural principles behind cryptographic trust — applied to email, APIs, and AI workflows.
AI agents are becoming a new access path to sensitive data. ASTIS MCP introduces AZK — Agentic Zero-Knowledge — as the architectural answer: AI agents can participate in cryptographic workflows, but plaintext access stays explicit, scoped, and auditable. Not a default side-effect.
Sensitive data does not only enter through APIs. Modern products also create it: reports, risk scores, legal summaries, AI outputs, support notes and compliance records. The real security question is not whether the data is encrypted somewhere — it is where plaintext exists, who can reveal it, and whether that reveal is explicit, controlled and audited.
A trust-model explainer for Legal, CEO, CTO, and CISO. What ASTIS sees vs doesn't see, how cross-provider workflow works without forcing client migration, the difference between managed CVS and HYOK custody, and how organizations preserve legitimate access without silent admin plaintext exposure.
Most software stacks treat infrastructure access as if it includes data access. Controls reduce risk — they don't remove plaintext from your infrastructure. Infrastructure can run the process, but it should not automatically own the data.
Posts are also reachable at astis.io/blog/1, /blog/2, etc.