Patent ID: 9191201
Filing Date: 2015-11-17
Classification: H04L

Abstract:
1. A method for optimizing network traffic, the method comprising: a hardware device intercepting a first communication from a client to a ticket granting server (TGS), wherein the first communication includes a cross-domain ticket granting ticket (TGT) and a first authenticator, wherein the cross-domain TGT is encrypted using a first key that is known to the TGS, wherein information encrypted in the cross-domain TGT includes a second key that is shared between the client and the TGS, and wherein the first authenticator is encrypted using the second key; the hardware device obtaining the first key from a first domain controller; the hardware device decrypting the cross-domain TGT using the first key to obtain the second key; the hardware device intercepting a second communication from the TGS to the client, wherein the second communication includes a service ticket and an encrypted third key, wherein the service ticket is encrypted using a fourth key that is known to a server, wherein the third key is shared between the client and the server, wherein information encrypted in the service ticket includes the third key, and wherein the encrypted third key is encrypted using the second key; and the hardware device decrypting the encrypted third key using the second key to obtain the third key.