US Patent 11758393 VPN authentication with forward secrecy

Various disclosed embodiments include illustrative apparatuses, methods, and program products. In an illustrative embodiment, an apparatus includes a processor, a network interface, and a memory that stores code executable by the processor. The code receives signed keys from a computing device over a network via the network interface. The signed keys include a key signed by a mobile device associated with the computing device and the signed keys were generated responsive to a first key agreement protocol configured to provide one of forward secrecy protection and time-based expiration. The code authenticates the received signed keys responsive to prior knowledge of public keys associated with at least one of the computing device and the mobile device according to a second key agreement protocol configured to provide one of forward secrecy protection and time-based expiration and code that initiates a communication between the processor and the device responsive to the received signed keys being authenticated.