The Federal Bridge Certification Authority (FBCA) is an information system that facilitates acceptance of certifications for transactions. Since its initial conceptualization and operation, the FBCA has evolved into the Federal Public Key Infrastructure Architecture (FPKIA) that encompasses Certification Authorities (CAs) from multiple vendors supporting different FPKI policy and function. The FPKIA enabling policy CAs are the: (1) FBCA, (2) Federal PKI Common Policy Framework (FCPF) CA, and (3) Citizen and Commerce Class Common (C4) CA. The operation also incorporates the E-Governance Certificate Authorities used to issue Secure Sockets Layer/Transport Layer Security protocol certificates supporting assertion-based credentials for Security Assertion Markup Language (SAML) data exchanges.