Abstract: The present invention provides for implementing an internal entity intermediate certificate authority via a mutual transport layer security conversation to allow an entity-specific certificate authority to generate its own certificate which is transmitted to a second point in the internal transmission for sending of the external certificate authority generated certificate to the external entity for mutual authentication. Further, in this way, the first point of internal transmission does not have to store the certificate in its own hardware security module.

Abstract: Embodiments of the present invention provide a system for securely electronically transmitting cryptographic certificates in high data transmission volume. The system is configured for initiating setup of an external secure hardware device, storing one or more digital keys and one or more cryptographic certificates associated with the digital keys on the external secure hardware device, determining initialization of an entity application, storing copies of at least the one or more cryptographic certificates in a cache memory of the entity application, generating a request for transmitting to a third party entity, extracting a cryptographic certificate from the cache memory associated with the third party entity, and transmitting the request and the cryptographic certificate to the third party entity.