Patent ID: 11943201
Assignee: UAB 360 IT
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method in a virtual private network (VPN) environment, comprising:
configuring a first server to receive, from a second server, an encrypted authentication packet to enable the first server and the second server to conduct an authentication process to authenticate a client device communicating with the second server to allow the client device to receive VPN services from the second server, wherein
the first server and the second server communicate utilizing a remote authentication dial-in user service (RADIUS) protocol, and
the encrypted authentication packet, encrypted utilizing a predetermined encryption algorithm, includes (i) a crypted code field indicating that a portion of the encrypted authentication packet is encrypted, and (ii) a crypted payload including an encrypted initial authentication packet, which comprises (a) a code field indicating a type, from a plurality of types, associated with the encrypted initial authentication packet, and (b) a payload field that indicates client information associated with authenticating the client device; and

configuring the first server to transmit, to the second server, a response based at least in part on determining that the portion of the encrypted authentication packet is encrypted and on decrypting, utilizing a predetermined decryption algorithm, the encrypted initial authentication packet, the response indicating successful authentication of the client device, unsuccessful authentication of the client device, or a request for additional information from the second server.