公开(公告)号：US09003180B2

公开(公告)日：2015-04-07

申请号：US13851800

申请日：2013-03-27

Applicant: Verizon Patent and Licensing Inc.

Inventor： Ghouse Mohiddin Dattapuram Shaik ,  Shiva Rama Krishna Nyshadham ,  Richa Mittal ,  Aravind Prathush Vadde

IPC: H04N21/2347 ,  H04L29/06 ,  H04N21/236 ,  H04N19/00 ,  H04M7/00

CPC classification number: H04N21/2347 ,  H04L29/06 ,  H04L63/0471 ,  H04L63/164 ,  H04M7/0039 ,  H04N7/16 ,  H04N21/2187 ,  H04N21/236 ,  H04N21/23895 ,  H04N21/43853 ,  H04N21/4405 ,  H04N21/6131 ,  H04N21/6181 ,  H04N21/64322 ,  H04W12/02

Abstract: Systems and methods for data encryption and decryption are provided. Packets of a streaming video from a video source are received. A first packet of the streaming video is encrypted with a encryption key and transmitted to a client device. The first packet is encrypted with a reference key and is designated as a reference packet. A number of packets of the encrypted media that follow the first packet are selected. For each of one or more selected packets, an XOR operation is performed on the respective selected packet with the reference packet. Result values of the XOR operation are rearranged by a shuffle key and divided into segments. Each of the segments is assigned to an even list or an odd list, which are combined to form a respective encrypted packet. The respective encrypted packet is designated as a non-reference packet and is transmitted to the client device.

Abstract translation: 提供了数据加密和解密的系统和方法。 接收来自视频源的流视频的数据包。 流媒体视频的第一个分组用加密密钥加密并传送到客户端设备。 第一个分组用参考密钥加密，并被指定为参考分组。 选择跟随第一个分组的加密媒体的多个分组。 对于一个或多个选择的分组中的每一个，对具有参考分组的相应所选分组执行XOR操作。 XOR操作的结果值通过洗牌键重新排列，并分成段。 每个段被分配给偶数列表或奇数列表，其被组合以形成相应的加密分组。 相应的加密分组被指定为非参考分组，并被发送到客户端设备。