Patent ID: 8380986
Filing Date: 2013-02-19
Classification: H04L,H04M,H04N

Abstract:
1. A method for decrypting at least one encrypted data stream comprising a first data stream containing data packets wherein the first data stream is a data stream that is specifically generated and specifically encrypted according to a network protocol for encrypting and transmitting data streams, the method comprising: generating key data packets for the first data stream, each of the key data packets having a header in which at least one piece of key information is included so that there is at least one piece of key information within each of the key data packets, the at least one piece of key information containing information needed to decrypt at least a portion of the first data stream; inserting said key data packets in the first data stream; transmitting the data packets and the key data packets of the first data stream; searching for at least one of the key data packets in the first data stream by searching for data packets having a predefined payload type that is assigned to the key data packets; determining key information from the at least one key data packet found via the searching; and decrypting at least a portion of the first data stream using the determined key information.