Abstract: The disclosure discloses a first server determining an encrypted authentication packet including (i) a crypted code field that indicates a type of the encryption authentication packet, (ii) a crypted payload field that includes an encrypted initial authentication packet, determined by utilizing a nonce, an encryption key, and an encryption algorithm, and (iii) a data length field that indicates a length of the encrypted authentication packet, the length including a sum of a length of the crypted code field, a length of the crypted payload field, and a length of the data length field. The method may also include transmitting, by the first server to a second server, the encrypted authentication packet to enable the first server and the second server to conduct an authentication process. Various other aspects are contemplated.

Abstract: A method including receiving, by a first server from a second server, an encrypted authentication packet to enable the first server and the second server to conduct an authentication process, the encrypted authentication packet including a crypted code field indicating that a portion of the encrypted authentication packet is encrypted and a crypted payload including an encrypted initial authentication packet; and transmitting, by the first server 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 the encrypted initial authentication packet. Various other aspects are contemplated.

Abstract: A method including configuring a first server to determine an encrypted authentication packet, the configuring including, configuring the first server to determine a crypted code field to indicate a type associated with the encryption authentication packet and that at least a portion of the encryption authentication packet is encrypted, and configuring the first server to determine a crypted payload based at least in part on encrypting an initial authentication packet. The method may also include configuring the first server to transmit, to a second server, the encrypted authentication packet to enable the first server and the second server to conduct an authentication process. Various other aspects are contemplated.

Abstract: A method in a virtual private network (VPN) environment, the method including determining, by a VPN server, an encrypted authentication packet based at least in part on utilizing an encryption key and a nonce to encrypt an initial authentication packet; transmitting, by the VPN server to an authentication server, the encrypted authentication packet to enable VPN authentication of a device requesting VPN services from the VPN server; determining, by the authentication server, a response regarding the VPN authentication based at least in part on decrypting the initial authentication packet utilizing a decryption key and the nonce; and transmitting, by the authentication server to the VPN server, the response regarding the VPN authentication. Various other aspects are contemplated.

Abstract: A method including determining, by a first server, an encrypted authentication packet, the determining including, determining a crypted code field to indicate a type associated with the encryption authentication packet and that at least a portion of the encryption authentication packet is encrypted, and determining a crypted payload based at least in part on encrypting one or more fields of an initial authentication packet; and transmitting, by the first server to a second server, the encrypted authentication packet to enable the first server and the second server to conduct an authentication process. Various other aspects are contemplated.

Abstract: A method including receiving, by a first server from a second server, an encrypted authentication packet to enable the first server and the second server to conduct an authentication process, the encrypted authentication packet including a crypted code field indicating a type associated with the encrypted authentication packet and a crypted payload including one or more encrypted fields; and transmitting, by the first server to the second server, a response based at least in part on determining the type associated with the encrypted authentication packet and on decrypting the one or more encrypted fields. Various other aspects are contemplated.

Abstract: A method including 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, the encrypted authentication packet including a crypted code field indicating a type associated with the encrypted authentication packet and a crypted payload including one or more encrypted fields; and configuring the first server to transmit, to the second server, a response based at least in part on determining the type associated with the encrypted authentication packet and on decrypting the one or more encrypted fields. Various other aspects are contemplated.