Under Part 182, a “public key infrastructure” is best understood as:

AI Explanation

Public key infrastructure is the supporting system behind certificate-based digital signatures. 19 NYCRR §182.2(n) defines it as the architecture, organization, techniques, practices, and procedures that collectively support implementation and operation of a certificate-based asymmetric or public/private key cryptographic system. Not to be confused with identity proofing under §182.7, this term concerns the signature architecture rather than the signer-interview process.