公开(公告)号：US20070233769A1

公开(公告)日：2007-10-04

申请号：US11277758

申请日：2006-03-28

申请人： Michael Moshier ,  Jeff Furlong

发明人： Michael Moshier ,  Jeff Furlong

IPC分类号： G06F7/38

CPC分类号： G06F7/728 ,  G06F7/5324 ,  G06F2207/3884

摘要： Montgomery multiplication can be computed quickly by using carry save adders and parallel multipliers. We present an enhanced technique for very fast Montgomery multiplication that can be used for RSA calculations. This invention utilizes a scalable bit word implementation, suitable for very large bit encryptions. Such designs can be deployed on mid-level FPGAs that have dedicated multiplier logic, on ASICs, or on custom circuits. To our knowledge, our technique yields some of the fastest RSA encryption times to be reported, having area requirements similar to related work. Such circuits can be ideal for increased security in sensitive communication fields.

摘要翻译： 可以通过使用进位保存加法器和并行乘法器快速计算蒙哥马利乘数。 我们提出了一种增强的技术，用于非常快速的Montgomery乘法，可用于RSA计算。 本发明利用适用于非常大的位加密的可扩展位字实现。 这样的设计可以部署在具有专用乘法器逻辑，ASIC或定制电路的中级FPGA上。 据我们所知，我们的技术产生了一些要报告的最快的RSA加密时间，具有与相关工作类似的面积要求。 这样的电路可以是敏感通信领域增加安全性的理想选择。

公开(公告)号：US20060159117A1

公开(公告)日：2006-07-20

申请号：US11037122

申请日：2005-01-19

申请人： Jeff Furlong ,  Robert Cookson

发明人： Jeff Furlong ,  Robert Cookson

IPC分类号： H04J3/26

CPC分类号： H04L12/18 ,  H04L12/1877

摘要： For offering entertainment services by video streaming content to users, a video encoder creates the required .nsc file for each broadcast channel. This .nsc file is retrieved and stored on a server which notifies each set-top box in the field, via a multicast notifier of the availability of the new service. This notifier contains the multicast address and port to where the .nsc files are being streamed. Once the set-top box retrieves this notification, it attempts to join the dedicated multicast stream, download the .nsc files and store them locally in memory on the set-top box. When a user selects a broadcast channel from their lineup, the set-top box will access the local file to obtain the proper information about that particular ASF stream; hence, it will not have to do an HTTP retrieval.

摘要翻译： 为了通过视频流内容向用户提供娱乐服务，视频编码器为每个广播频道创建所需的.nsc文件。 该.nsc文件被检索并存储在服务器上，该服务器通过新服务的可用性的多播通知器通知该字段中的每个机顶盒。 此通知程序包含传播.nsc文件所在的多播地址和端口。 一旦机顶盒检索到此通知，它将尝试加入专用的多播流，下载.nsc文件并将其存储在机顶盒的内存中。 当用户从其阵容中选择广播频道时，机顶盒将访问本地文件以获取关于该特定ASF流的适当信息; 因此，它不需要进行HTTP检索。