专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明授权

US07607022B1 Configurable encryption/decryption for multiple services support 有权
标题翻译：可配置的加密/解密支持多种服务
公开(公告)号：US07607022B1
公开(公告)日：2009-10-20
申请号：US09587932
申请日：2000-06-06
申请人： Xin Qiu , Eric J. Sprunk
发明人： Xin Qiu , Eric J. Sprunk
IPC分类号： H04N7/16 , H04N7/167
CPC分类号： H04N7/52 , H04L9/088 , H04N7/1675 , H04N21/2347 , H04N21/2365 , H04N21/4347 , H04N21/4405
摘要： A system to transmit a set of programs from a transmitter to a receiver is used to accommodate different levels of security used for each program. When a high level of security is necessary for transmitting or receiving a program the transmitter and/or receiver is operable to accommodate that level of security. Thus, both transmitters and receivers are operable to be reconfigured to encrypt or decrypt, respectively, at different levels. Accordingly, differing amounts of programs can be transmitted or received based on the resource requirements needed at any level of security. Consequently, a high level of encryption/decryption requires more resources and allows the processing of fewer services, while a lower level of encryption/decryption allows more services to be transmitted/received.
摘要翻译：用于将一组程序从发射机发射到接收机的系统被用于适应用于每个节目的不同级别的安全性。当需要高水平的安全性来发送或接收程序时，发射器和/或接收器可操作以适应该级别的安全性。因此，发射机和接收机都可以被重新配置以分别在不同的级别进行加密或解密。因此，可以基于任何安全级别所需的资源要求来发送或接收不同数量的程序。因此，高级别的加密/解密需要更多的资源并且允许处理较少的服务，而较低级别的加密/解密允许发送/接收更多的服务。

32. 发明申请

US20090202075A1 CONDITIONAL ACCESS SYSTEM EMPLOYING CONSTRAINED ENCRYPTION KEYS 有权
标题翻译：使用约束加密键的条件访问系统
公开(公告)号：US20090202075A1
公开(公告)日：2009-08-13
申请号：US12345741
申请日：2008-12-30
申请人： Lawrence D. Vince , Eric J. Sprunk
发明人： Lawrence D. Vince , Eric J. Sprunk
IPC分类号： H04L9/00 , H04L9/06
CPC分类号： H04H60/15 , H04H60/23 , H04L9/0861 , H04L2209/601 , H04N7/165 , H04N21/43853 , H04N21/4623 , H04N21/63345
摘要： A method and apparatus is provided for decrypting an encrypted transport stream, comprising. The method includes receiving the encrypted transport stream over a content delivery network. The encrypted transport stream is encrypted using a first control word that serves as an encryption/decryption key. A variable control word is received over the content delivery network. The variable control word is mathematically constrained to create a second control word. The encrypted transport stream is decrypted using the second control word if the second control word is the same as the first control word.
摘要翻译：提供了一种解密加密的传输流的方法和装置，包括：该方法包括通过内容传送网络接收加密的传输流。使用用作加密/解密密钥的第一控制字对加密的传输流进行加密。通过内容传送网络接收可变控制字。可变控制字在数学上被约束以产生第二控制字。如果第二控制字与第一控制字相同，则使用第二控制字对加密的传输流进行解密。

33. 发明授权

US07486792B2 Terrestrial broadcast copy protection system for digital television 有权
标题翻译：数字电视地面广播复制保护系统
公开(公告)号：US07486792B2
公开(公告)日：2009-02-03
申请号：US10646398
申请日：2003-08-21
申请人： Eric J. Sprunk
发明人： Eric J. Sprunk
IPC分类号： H04N7/167 , H04L9/00
CPC分类号： H04N21/2541 , H04N7/162 , H04N7/1675 , H04N21/2347 , H04N21/25816 , H04N21/26613 , H04N21/42684 , H04N21/4405 , H04N21/4408 , H04N21/4623 , H04N21/835
摘要： According to the invention, a method for protecting digital television from unauthorized digital receivers within a population of digital receivers is disclosed. Each digital receiver in the population has a unique identifier. In one step, provisioning information is received from a subset of the population of digital receivers indicating that the subset is potentially within range to receive digital television from a broadcaster. First decryption information is distributed to the subset of the population of digital receivers. The first decryption information allows for potentially decrypting a plurality of programs coextensively in time. The unauthorized digital receivers are cryptographically excluded from using the first decryption information. A first program is encrypted using a first method that is cryptographically related to second decryption information. The first program is sent. The second decryption information is distributed and cryptographically secured with the first decryption information.
摘要翻译：根据本发明，公开了一种在数字接收机群体内保护数字电视免受未经授权的数字接收机的方法。群体中的每个数字接收器具有唯一的标识符。在一个步骤中，从数字接收机的子集的子集接收供应信息，指示该子集潜在地在从广播者接收数字电视的范围内。第一解密信息被分发给数字接收机的群体的子集。第一解密信息允许在时间上共同地解密多个节目。未经授权的数字接收机被加密地排除在使用第一解密信息之外。使用与第二解密信息密码相关的第一方法对第一程序进行加密。第一个程序被发送。利用第一解密信息分发和密码地保护第二解密信息。

34. 发明授权

US06959089B1 Method and apparatus for secure transmission of data 有权
标题翻译：用于数据安全传输的方法和装置
公开(公告)号：US06959089B1
公开(公告)日：2005-10-25
申请号：US09697656
申请日：2000-10-26
申请人： Eric J. Sprunk
发明人： Eric J. Sprunk
IPC分类号： G09C1/00 , G11B20/00 , G11B31/00 , H04L9/08 , H04L9/32 , H04N7/167
CPC分类号： H04N21/63775 , G11B20/00086 , G11B31/006 , H04N7/1675 , H04N21/25816 , H04N21/63345
摘要： An apparatus and method are utilized for transmitting data across an interface between a sender and a receiver. The sender and receiver can be provided with a shared key, a receiver—key and a sender—key. A payload message can be combined with the keys to generate a unique message for transmission across the interface. The payload message can be authenticated utilizing the same input and the same algorithm on the receiving end of the transmission. The resulting confirmatory payload message can be utilized with the authenticating payload message to authenticate the payload message.
摘要翻译：一种装置和方法用于通过发送器和接收器之间的接口传输数据。发送者和接收者可以被提供有一个共享密钥，一个接收者和一个发送者密钥。有效负载消息可以与密钥组合以生成用于跨接口传输的唯一消息。可以在传输的接收端使用相同的输入和相同的算法来认证有效载荷消息。所得到的确认有效载荷消息可以与认证有效载荷消息一起使用以验证有效载荷消息。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式