Control Objective 4: Key loading to HSMs and POI PIN-acceptance devices is handled in a secure manner – PCI PIN Security
PCI PIN Security 15-2: PCI PIN 15-2
A public key's authenticity and integrity are ensured by encrypting it per Annex C or, if in plaintext, by holding it in an Annex A certificate, in a PKCS#10 request with authentication by other means, inside an SCD, or with an ISO 16609 MAC.