Self-hosted infrastructure & PKI

Private certificate services,
run end-to-end.

LTTS is a self-managed infrastructure lab covering networking, Active Directory, hybrid cloud, and a working private Certificate Authority — issuing, managing and logging certificates the same way a production PKI does. Open to both organisations and individual users.

Sign In or register to access the Certificate Portal LTTS Managed SubCA Portal
What's here

Certificate services

A private PKI built the way a real one works — a certificate portal for organisations and individuals, a separate admin console for organisation owners, ACME automation, and public certificate transparency logging.

01

Certificate Portal

Open to both organisations and individual users — request certificates, complete DNS/HTTP validation, and manage issuance directly.

pki.ltts.uk →
02

Org Admin Portal

A separate admin console for organisation owners/admins with their own managed SubCA — grants, issued certificates and renewals in one place.

app.ltts.uk →
03

Certificate Transparency

A public CT log for certificates issued by the CA, so anything issued is independently discoverable and auditable.

ct.ltts.uk →
04

Customer CT Log

A separate transparency log scoped to certificates issued under customer-managed SubCAs.

ct-customer.ltts.uk →
For organisations

Managed SubCA hosting

Organisations can operate their own subordinate CA chained to the LTTS root, without running any CA infrastructure themselves. LTTS provisions and hosts the SubCA — issuance, renewals and ACME automation are then handled by the organisation through the Org Admin Portal.

Certificates issued under a managed SubCA are logged the same way as everything else the CA issues — publicly, through the certificate transparency logs.

Org Admin Portal →

Key security

  • Each SubCA's private key is generated and held inside a Hardware Security Module (HSM)
  • Keys are marked non-exportable — they never leave the HSM, including during signing operations
  • Signing requests are passed to the HSM; the key material itself is never exposed to the application layer
  • Each organisation's SubCA key is isolated from the CA's own root key material
HSM-backed
About

Why LTTS exists

LTTS is a personal infrastructure project — a multi-site home and colocated lab built and operated the way a real environment would be, not a one-off demo. It covers Active Directory across sites, networking, hybrid cloud, and a working private PKI that issues, renews and logs certificates end-to-end.

Everything here — the CA itself, the issuance portals, ACME automation and the public CT logs — is designed, built and maintained directly, as a way of running real infrastructure problems to ground rather than just reading about them.

Self-hosted
4
Public services — portal, admin, and two CT logs
Multi-site
Home & colocated infrastructure
ACME
Automated certificate issuance and renewal