公开(公告)号：US08990566B2

公开(公告)日：2015-03-24

申请号：US13775926

申请日：2013-02-25

申请人： TT Government Solutions, Inc.

发明人： Giovanni Di Crescenzo

IPC分类号： H04L29/06 ,  G06F21/60

CPC分类号： H04L63/045 ,  G06F21/602 ,  H04L9/3013 ,  H04L63/062 ,  H04L2209/42 ,  H04L2209/50

摘要： A method and system for providing privacy in a publish-subscribe protocol is provided. A server receives from a third party a topic-based key associated with a tree structure having a pseudonym of a topic as a root and at least one client as a leaf. The server encrypts a key associated with a conditional oblivious transfer protocol using the topic-based key. The server encrypts an item with the key associated with the conditional oblivious transfer protocol. The server transmits the encrypted key and the encrypted item to a plurality of clients. The encrypted item is decryptable by the at least one client with the key associated with the conditional oblivious transfer protocol when the key associated with the conditional oblivious transfer protocol is decryptable with an interest-based key associated with a tree structure having a pseudonym of an interest as a root and the at least one client as a leaf.

摘要翻译： 提供了一种用于在发布 - 订阅协议中提供隐私的方法和系统。 服务器从第三方接收与具有作为根的主题的假名的树结构相关联的基于主题的密钥和作为叶的至少一个客户端。 服务器使用基于主题的密钥加密与条件遗忘传输协议相关联的密钥。 服务器使用与条件遗忘传输协议相关联的密钥加密项目。 服务器将加密的密钥和加密的项目发送到多个客户端。 当与条件遗忘传输协议相关联的密钥可与具有感兴趣的假名的树结构相关联的基于兴趣的密钥可解密时，加密的项目可由至少一个客户端具有与条件遗忘传输协议相关联的密钥解密 作为一个根，至少一个客户端作为叶。

公开(公告)号：US09032202B2

公开(公告)日：2015-05-12

申请号：US13775912

申请日：2013-02-25

申请人： TT Government Solutions, Inc.

发明人： Giovanni Di Crescenzo

IPC分类号： H04L29/06 ,  G06F21/60

CPC分类号： H04L63/045 ,  G06F21/602 ,  H04L9/3013 ,  H04L63/062 ,  H04L2209/42 ,  H04L2209/50

摘要： A server receives from a client at least one interest pseudonym produced by a double application of a pseudo random function to at least one interest of the client. The server encrypts an item. The server computes at least one intermediate topic pseudonym for at least one topic associated with the item by applying the function to each of the at least one topic associated with the item. The server transmits the at least one intermediate topic pseudonym, the at least one interest pseudonym, and the encrypted item to a third party. The third party may apply the function to the at least one intermediate topic pseudonym to produce at least one topic pseudonym associated with the item and transmit the encrypted item to the client for decryption when one of the at least one masked topic pseudonym is equal to one of the at least one interest pseudonym of the client.

摘要翻译： 服务器从客户端接收由伪随机函数的双重应用产生的至少一个兴趣假名到客户端的至少一个兴趣。 服务器加密一个项目。 所述服务器通过将所述功能应用于与所述项目相关联的所述至少一个主题中的每一个来计算与所述项目相关联的至少一个主题的至少一个中间主题假名。 服务器将至少一个中间主题假名，至少一个兴趣化名和加密的项目发送给第三方。 第三方可以将该功能应用于至少一个中间主题假名以产生与该项目相关联的至少一个主题假名，并且当所述至少一个被掩盖的主题假名中的一个等于一个时，将加密的项目发送给客户机进行解密 的客户端的至少一个兴趣化名。