Trust Directory
Independent public mirror of national PKI trust anchors, not an authority. Certificates are published by each national PKI (e.g., BCCR for Costa Rica); this site mirrors and structures them.

United States

Published by US Federal PKI — Federal PKI Management Authority (FPKIMA), GSA

Certificates
13
Roots
1
Intermediates
12
did:pki
13
Updated
Model
National hierarchy
Governing law
OMB M-19-17 · FPKI Common Policy Framework (X.509 Certificate Policy)
Key algorithms
RSA-2048, RSA-3072, RSA-4096
Signature standards
CMS/PKCS#7CAdESPAdES
CapabilitiesFederal Common Policy (trust root)Federal Bridge CAPIV / PIV-I credentialingSSP intermediate CAs

US Federal PKI. The trust anchor is Federal Common Policy CA G2 (FCPCA G2, RSA-4096, valid to 2040), fetched directly over HTTPS from the official FPKI repository (repo.fpki.gov). The subordinate/cross set (Federal Bridge CA G4, Entrust Managed PKI Federal Root CA G2, DigiCert Federal SSP G5/G6, WidePoint/ORC SSP, Department of the Treasury, U.S. Department of State AD Root) is extracted from the caCertsIssuedByfcpcag2.p7c bundle published alongside FCPCA G2. All certificates chain up to FCPCA G2 and validate themselves at verification time. Sourced by the us monitor (scripts/monitors/sources/us.mjs).