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Agentic Security | GaraTrust by Garantir
The 5th GaraTrust Pillar

Agentic security at scale, through cryptographic services.

The same GaraTrust platform that secured digital transformation for the world's largest enterprises now provides the cryptographic services to scale the next wave of it: autonomous AI agents. Govern what an agent can read and what it can do — enforced below the model, so a compromised or prompt-injected agent can't exceed the user's scope.

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Cryptographic governance for the data agents reach and the actions agents take.
Named a priority by NIST · Gartner · CSA · OWASP
Same architecture, next wave

The platform that scaled the last transformation now scales the next one.

Because Garantir is implemented at the cryptographic primitive layer, we deliver this fifth pillar with the same proven architecture already driving Data Security, Passwordless Authentication, Certificate Management & PKI, and Software Supply Chain Security. Agentic Security isn't a new product — it's a direct application of capabilities GaraTrust already ships.

Proven, not net-new

Same delegated access to secured cryptographic keys and certificates, same policy engine, same audit fabric — extended to a new class of identity. Zero new products to build or integrate separately.

Enforced below the model

Authorization in the application doesn't survive when the agent is the application. GaraTrust moves the decision beneath the model, where prompt injection can't reach.

No agent code changes

Data reads attach through database driver wrappers; actions through an MCP wrapper. Agents integrate the way they already call drivers and tools.

The bottom line: the same elegant, proven architecture that already drives four pillars now delivers the fifth — Agentic Security — with no rip-and-replace and no new key silo for agents.

What is agentic security?

From agent request to a scoped, signed result An AI agent request enters a GaraTrust and HSM gate that protects the data and authorizes the actions, producing a result scoped to the user and signed. AGENT REQUEST GARATRUST + HSM PROTECT THE DATA auth + identity-bound decryption AUTHORIZE THE ACTIONS per-action HSM signing VERIFY IDENTITY + POLICY SCOPED & SIGNED

Agentic security is cryptographic governance of what an autonomous AI agent can read and do — enforced below the model, so a compromised or prompt-injected agent can't exceed the user's scope. The agent holds no keys and no standalone authority.

It rests on two imperatives. Protect the data: the agent authenticates to each resource server with short-lived, just-in-time certificates and keys provisioned on the requestor's behalf — and the data it reads is released through identity-bound decryption, scoped to the authenticated end user rather than the agent's service account. Authorize the actions: every action is signed inside the HSM through an MCP wrapper, carrying a nonce, a freshness window, and a hash of the action's parameters — gated by policy with step-up MFA, just-in-time access, or quorum on high-value actions.

Both gates are cryptographic — not application policy an attacker can bypass. And both deploy with no agent code changes: data reads attach through database driver wrappers, actions through an MCP wrapper. The agent calls tools and drivers the way it does today, and GaraTrust enforces policy at the wrapper — it isn't a proxy in your data path.

Identity-bound HSM-signed actions MCP wrapper No agent code changes PQC-ready
The agent authorization gap

Agents are outpacing the authorization model — on three fronts at once.

AI agents moved into production faster than identity and authorization caught up. The controls most enterprises rely on weren't built for an actor that can be talked into anything.

01 / Identity

A new, exploding identity class

Every agent runs on a service account or pass-through token and inherits its full decryption scope and action authority. Machine identities already vastly outnumber humans — and agents are accelerating the curve.

82–144×Machine identities per human, and climbing
02 / Threat model

The risk moved below the model

Prompt injection, token replay, and a compromised runtime turn an agent into both a data-exfiltration path and an unauthorized-action path. A valid credential plus authorized access no longer equals a safe outcome.

>50%of successful agent attacks will exploit access-control gaps by 2029 — Gartner
03 / Control gap

App-layer policy doesn't survive the agent

Authorization enforced in the application fails when the agent is the application. OAuth scopes and gateways are the right baseline — and bypassable once the agent is compromised or the action is high-value.

18% / 23%confident their IAM handles agents / have an agent-identity strategy — CSA

Sources: Gartner (2026); CSA / Strata agent-identity survey (2026)

Token + policy is the right starting point — and enough on its own for routine, lower-value agent workflows. When the work is enterprise-critical, cryptographic enforcement closes the gap below the model, where the agent can't argue with it.

Token-based control was built for apps, not agents.

Token + policy is the mainstream 2026 approach — standards-based, fast to deploy, and enough on its own for routine, lower-value agent workflows. The limit is the application layer: when an agent handles enterprise-critical or regulated work, app-layer controls can be bypassed. Cryptographic enforcement doesn't replace token + policy; it backstops it where the stakes are high. Think of it as a dial you turn up with the value of the workflow.

Token + Policy

Fine until the workflow is critical

  • A stolen or replayed bearer token is reused at will
  • Prompt injection redirects the agent's authority without breaking any token
  • Service-account scope means the agent — not the user — sets the blast radius
  • Policy lives at the app layer, exactly where a compromised agent already is
  • Logs record actions; they don't prove a user approved them
HSM-rooted (optional)

Cryptographically enforced

  • Decryption is bound to the authenticated end user — the agent holds no keys
  • Every high-value action is signed inside the HSM with a nonce and freshness window — replays fail
  • A compromised agent can act only within the user's scope, never beyond it
  • Enforcement sits below the model, where prompt injection can't reach
  • Each operation emits a signed, SIEM-verifiable record — proof, not just logs

Authority an agent can't talk its way past.

An autonomous agent is easy to compromise and easy to manipulate. GaraTrust assumes both and moves the decision below the model. The agent presents the user's authenticated identity and the requested operation; GaraTrust exchanges that identity with your identity provider for a delegated, user-scoped token — an on-behalf-of flow — then, backed by the HSM, provisions short-lived credentials, decrypts, and signs. The agent itself holds no key material and no standalone authority.

Agent authorization flow with on-behalf-of token exchange A user request flows through the AI agent to GaraTrust. GaraTrust exchanges the user identity with the identity provider for a delegated, user-scoped token, then verifies policy and uses the HSM to provision short-lived credentials, sign, and decrypt — returning a result scoped to the user. USER AI AGENT GARATRUST IDENTITY PROVIDER HSM request call (user token, op) on-behalf-of exchange ← delegated user token verify identity + policy provision JIT cert / sign / decrypt ← credential / signature / plaintext ← result, scoped to user ← response The agent never holds a long-lived credential — every read and action is scoped to the authenticated user.

Integration with no agent code changes

Data reads attach through database driver wrappers; actions through an MCP wrapper — the same wrapper philosophy across both paths. If you know how Garantir protects data, you already know how it authorizes actions: swap the driver, add the wrapper, change no agent code. GaraTrust enforces policy at the wrapper rather than proxying your traffic.

The GaraTrust platform

Cryptographic governance for every agent you deploy.

GaraTrust turns an agent from an unbounded credential into a governable identity — binding what it reads and what it does to the user it acts for, all on one HSM-rooted architecture.

01 / Identity binding

Identity-bound decryption

Reads are scoped to the authenticated end user the agent acts for — not the agent's service account. A compromised agent can't read beyond the user's scope.

02 / Action integrity

Per-action HSM signing

Every action is signed inside a FIPS-validated HSM via an MCP wrapper, carrying a nonce, freshness window, and parameter hash. Stolen tokens and replays fail verification — and there's no signing key in the agent to steal.

03 / Integration

No agent code changes

Data reads attach via database driver wrappers; actions via an MCP wrapper. Agents integrate the way they already call drivers and tools — GaraTrust enforces policy at the wrapper, not as a proxy in your path.

04 / Registration

NHI registry + dynamic enrollment

Agents register as non-human identities with dynamic enrollment and ephemeral attestation — short-lived credentials issued per session, no standing secrets to steal.

05 / Gating

Step-up, JIT, and quorum

High-value actions are gated by policy — step-up MFA, just-in-time grants, quorum sign-off — enforced at the signing gate, not in a prompt that injection can manipulate.

06 / Evidence

Signed, tamper-evident audit

Each operation emits a signed, SIEM-verifiable record with full context — user, agent, and scope. Continuous, attestable evidence per agent, per decryption, per action.

Ready to talk?

Make your agents governable.

See GaraTrust against your environment in a technical demo — agent registration, identity-bound decryption, per-action HSM signing, and your MCP and HSM connectivity. Start with the imperative that matches your risk; add the other when you're ready.

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