Keep trust zones distinct
Tiers, forests, domains, CAs and network segments retain their own boundaries and connector paths.
ENTERPRISE TRUST ARCHITECTURE
Many trust domains. One controlled identity lifecycle.
SYNRION x.ID connects on-premises Active Directory forests through LDAP Connectors and Microsoft Entra ID natively through the Azure Connector to hardware, policies, certification authorities and distributed Outposts.
VALUE IN 30 SECONDS
Scale control without erasing separation.
Connect one identity model
Primary and secondary identities remain accountable across on-premises AD forests, Microsoft Entra ID, administrative roles and separated environments.
Apply policy consistently
Independent approval, hardware evidence and lifecycle rules remain understandable across issuing systems and locations.
CONTROL ACROSS TRUST BOUNDARIES
How does a large identity architecture stay understandable and enforceable?
Enterprise scale is not a larger single-server diagram. It is a deliberate distribution of trust, connector responsibility and hardware protection around one consistent identity lifecycle.
-
01
Map tiers, forests and domains
Identify the administrative boundaries that must remain separate and the primary identities accountable for roles in each one.
-
02
Connect AD DS and Microsoft Entra ID separately
Bring each on-premises forest into the lifecycle through its appropriate LDAP Connector path and address Microsoft Entra ID directly through the native Azure Connector.
-
03
Map internal and public CAs
Connect each certificate use case to its intended certification authority, profile and trust audience.
-
04
Place Outposts by responsibility
Put CA, LDAP and policy functions in the zones where they can perform their task with the smallest necessary access and show the Azure Connector as a separate native cloud path.
-
05
Bind people, hardware and roles
Keep every administrative or operational identity connected to the accountable person and approved security hardware.
-
06
Protect service and CA keys in hardware
Treat machine and service identities as first-class trust objects and use HSM protection for privileged private keys.
-
07
Keep every state change traceable
Issue, renew, revoke, replace and remove identities through a consistent process even when target systems and CAs differ.
THE ARCHITECTURE AT A GLANCE
AD DS and Entra ID remain separate native target paths. x.ID keeps the certificate, X509 SKI mapping, FIDO2/CBA state, hardware, policy and CA selection connected across all trust boundaries.
TECHNICAL DEPTH
Enterprise scale is controlled distribution.
The following concepts describe different architectural dimensions. Treating them as synonyms hides the decisions that make the environment secure.
- Multi-tier
- Administrative security tiers separate systems and credentials by impact. x.ID can assign distinct secondary identities, hardware and policies to those tiers while retaining the accountable primary identity.
- Multi-forest and multi-domain
- Directory forests and domains define identity and administration boundaries. A least-privileged LDAP Connector can maintain userCertificate and X509:
in each AD context; Microsoft Entra ID is connected separately and natively through the Azure Connector. - Microsoft Entra ID and Entra CBA
- The Azure Connector uses Microsoft Graph directly. FIDO2/passkey registrations and, for certificate-based Entra authentication, SKI-based certificateUserIds therefore remain part of the same controlled lifecycle.
- Multi-CA
- Different internal or public CAs may serve different profiles, trust audiences and applications. x.ID keeps issuer selection connected to identity, policy and intended use.
- Multi-segment
- Network segments restrict technical reach. Outposts provide defined local functions and mTLS-authenticated paths rather than broad direct access.
- Human and service identities
- People, managed service accounts, applications and infrastructure services have different lifecycle and key-protection requirements but belong in one overall trust model.
EVIDENCE & BOUNDARIES
What should remain provable at enterprise scale.
A large environment is under control when every active identity and key has an accountable owner, intended use, policy, technical location and current lifecycle state.
Identity and role accountability
Secondary identities across tiers, on-premises AD domains and Microsoft Entra ID remain connected to the verified primary identity.
AD and Entra target state
userCertificate, X509 SKI mappings, certificateUserIds and FIDO2 registrations remain controlled during issue, renewal, revocation and replacement.
CA and application context
Certificate issue remains tied to the selected CA, profile, role and target use case.
Distributed policy enforcement
Outposts and independent policies extend control into separated zones without flattening the architecture.
Hardware-protected privileged keys
User, service and CA key paths can be designed around security keys and supported HSM providers.
RELATED PRODUCT
SYNRION x.ID
SYNRION x.ID combines verified primary identities, authentic hardware and independent policy enforcement into one reliable trust decision.
THE NEXT CONTROLLED STEP
Bring the real trust boundaries into one architecture view.
We will map tiers, forests, domains, CAs, segments, user roles and service keys without exposing customer names or weakening existing separation.