公开(公告)号：US08789088B2

公开(公告)日：2014-07-22

申请号：US13077470

申请日：2011-03-31

申请人： Han-Seung Koo ,  O-Hyung Kwon ,  Dong-Joon Choi ,  Soo-In Lee

发明人： Han-Seung Koo ,  O-Hyung Kwon ,  Dong-Joon Choi ,  Soo-In Lee

IPC分类号： H04N7/16 ,  H04N7/167 ,  H04N21/418

CPC分类号： H04N7/1675 ,  H04N21/23617 ,  H04N21/4181 ,  H04N21/4383 ,  H04N21/4433 ,  H04N21/4627 ,  H04N21/8193

摘要： A method for installing different security clients for channels in a terminal in a conditional access system includes: searching one or more channels searchable in the terminal; requesting, for respective searched channels, security clients necessary for receiving pay programs to be transmitted through the searched channels, to a broadcasting station which takes charge of the searched channels; and downloading and installing, for respective searched channels, the requested security clients from the broadcasting station.

摘要翻译： 一种用于在条件访问系统中的终端中安装用于信道的不同安全客户端的方法包括：搜索终端中可搜索的一个或多个信道; 向相应搜索的频道请求用于接收通过所搜索的频道发送的付费节目所需的安全客户机，向负责搜索的频道的广播电台请求; 并且从各广播台下载和安装所请求的安全客户端。

公开(公告)号：US20070098170A1

公开(公告)日：2007-05-03

申请号：US11492092

申请日：2006-07-25

申请人： Han-Seung Koo ,  O-Hyung Kwon ,  Soo-In Lee

发明人： Han-Seung Koo ,  O-Hyung Kwon ,  Soo-In Lee

IPC分类号： H04N7/167

CPC分类号： H04N7/1675 ,  H04N7/162 ,  H04N21/2585 ,  H04N21/26606

摘要： Provided is a digital broadcasting conditional access system and method using an Authorization Revocation List (ARL) for preventing an illegal pay broadcasting viewing after a secession time by promptly revoking an entitlement of pay service seceders through a periodical transmission of ARL that is daily or monthly prepared and updated to subscribers. The invention system comprises an ARL providing unit for creating daily and monthly ARLs separately and updating the ARLs based on service secession information of subscribers, a Subscriber Management System (SMS) for receiving service secession requests from subscribers and delivering the requests to the ARL providing unit, a Subscriber Authorization System (SAS) for producing an Entitlement Control Message (ECM) and an Entitlement Management Message (EMM) for subscriber authorization at a receiving end by using the daily and the monthly ARLs managed by the ARL providing unit, and a transmitting unit for periodically transmitting the ECM to subscribers via an in-band channel and the EMM via an out-of-band channel.

摘要翻译： 提供了一种使用授权撤销列表（ARL）的数字广播条件访问系统和方法，用于通过每天或每月准备的ARL的定期传输迅速撤销付费服务分发者的权利来防止在分离国之后的非法付费广播观看 并更新到订阅者。 本发明系统包括一个ARL提供单元，用于分别创建每日和每月的ARL，并且基于用户的服务分离信息更新ARL;用于从订户接收服务分离请求的订户管理系统（SMS），并将请求传送到ARL提供单元 ，用于通过使用由ARL提供单元管理的每日和每月ARL在接收端产生授权控制消息（ECM）和权利管理消息（EMM）的订户授权系统（SAS）和授权管理消息（EMM），以及发送 用于通过带内信道和EMM经由带外信道周期性地向订户发送ECM的单元。

公开(公告)号：US20110051933A1

公开(公告)日：2011-03-03

申请号：US12812995

申请日：2009-11-23

申请人： Han-seung Koo ,  O-Hyung Kwon ,  Soo-in Lee

发明人： Han-seung Koo ,  O-Hyung Kwon ,  Soo-in Lee

IPC分类号： H04L9/08 ,  H04L9/00

CPC分类号： H04N21/4623 ,  H04L9/0844 ,  H04L9/321 ,  H04L9/3249 ,  H04L9/3268 ,  H04L63/04 ,  H04L2209/603 ,  H04L2209/76 ,  H04L2463/101 ,  H04N21/43853 ,  H04N21/44236

摘要： The present invention relates to a technology of paring a secure micro (SM) and a transport processor (TP) in a downloadable conditional access system (DCAS). More specifically, predetermined security components generated by a trusted authority which is a certificate authority are previously embedded into the SM and the TP, and pairing between the SM and the TP is performed by association of the security components with the TA. Accordingly, safe pairing can be assured and the leakage of security information from the SM by malicious hacking can be prevented.

摘要翻译： 本发明涉及在可下载条件访问系统（DCAS）中对安全微（SM）和传输处理器（TP）进行编译的技术。 更具体地说，由作为认证机构的信任机构产生的预定安全性部件预先嵌入到SM和TP中，并且通过安全组件与TA的关联来执行SM与TP之间的配对。 因此，可以确保安全配对，并且可以防止恶意黑客从SM泄漏安全信息。

公开(公告)号：US20050144634A1

公开(公告)日：2005-06-30

申请号：US10971167

申请日：2004-10-22

申请人： Han-Seung Koo ,  O-Hyung Kwon ,  Soo-In Lee

发明人： Han-Seung Koo ,  O-Hyung Kwon ,  Soo-In Lee

IPC分类号： H04K1/00 ,  H04L9/00 ,  H04N7/167

CPC分类号： H04N21/63775 ,  H04N7/1675 ,  H04N21/2347 ,  H04N21/2543 ,  H04N21/26613 ,  H04N21/2668 ,  H04N21/4405 ,  H04N21/4627 ,  H04N21/47211 ,  H04N21/6581 ,  H04N21/8355

摘要： Disclosed is a method for providing a pay-TV service based on a session key. The method includes the steps of: selecting a desired pay event using a program guide displayed on a system of the subscriber and achieving a subscriber private key; filling out a service application based on service information, signing the service application based on a digital signature scheme and encrypting the digital signed service application; transmitting the encrypted service application to a broadcasting station and waiting a response of the broadcasting station; receiving a session key and a subscription authority message from the broadcasting station, decrypting the session key and the subscription authority message and verifying the digital signature; decrypting a channel key, achieving a control word, descrambling event audio/video streams and watching the event; and if the event is terminated or the session key is not effective, stopping watching the event and deleting the session key.

摘要翻译： 公开了一种基于会话密钥提供付费电视服务的方法。 该方法包括以下步骤：使用在订户的系统上显示的节目指南来选择所需的付费事件并实现用户私钥; 基于服务信息填写服务应用程序，基于数字签名方案签署服务应用程序，加密数字签名服务应用程序; 将加密的服务应用发送到广播站并等待广播电台的响应; 从广播站接收会话密钥和订阅授权消息，解密会话密钥和订阅授权消息并验证数字签名; 解密通道密钥，实现控制字，解扰事件音频/视频流并观看事件; 如果事件终止或会话密钥无效，则停止观察事件并删除会话密钥。

公开(公告)号：US07570763B2

公开(公告)日：2009-08-04

申请号：US10868508

申请日：2004-06-14

申请人： Han-Seung Koo ,  O-Hyung Kwon ,  Soo-In Lee

发明人： Han-Seung Koo ,  O-Hyung Kwon ,  Soo-In Lee

IPC分类号： H04N7/167

CPC分类号： H04L9/0825 ,  G06Q20/102 ,  G06Q40/12 ,  H04L9/0844 ,  H04L9/3247 ,  H04N7/1675 ,  H04N7/17309 ,  H04N7/17363 ,  H04N21/2543 ,  H04N21/25816 ,  H04N21/4181 ,  H04N21/47202 ,  H04N21/475 ,  H04N21/482 ,  H04N21/63345

摘要： A method for subscribing a service and distributing encryption key based on public-key encryption algorithm in a digital CATV system are disclosed. In accordance with an aspect of the present invention, there is provided a method including the steps of: a) generating a charged service application message; b) generating a session connection request message, signing based on a digital signature scheme with appendix on the session connection request message and transmitting to the head-end; c) generating a symmetric-based session key, signing a digital signature on the key, encrypting based on a public-key of the subscriber, transmitting the session key to the subscriber; decrypting the session key message, verifying the digital signature, extracting the session key from the session key message and storing at a Condition Access Module; and d) signing a digital signature on the charged service request message, encrypting using the extracted session key and transmitting to the head-end.

摘要翻译： 公开了一种在数字CATV系统中基于公开密钥加密算法订阅服务并分发加密密钥的方法。 根据本发明的一个方面，提供了一种方法，包括以下步骤：a）产生带电业务应用消息; b）生成会话连接请求消息，基于会话连接请求消息的附录基于数字签名方案进行签名并发送到前端; c）生成基于对称的会话密钥，在密钥上签署数字签名，基于订户的公开密钥加密，向用户发送会话密钥; 解密会话密钥消息，验证数字签名，从会话密钥消息中提取会话密钥并存储在条件访问模块; 以及d）在所收取的服务请求消息上签署数字签名，使用所提取的会话密钥进行加密并发送到头端。

公开(公告)号：US20070274730A1

公开(公告)日：2007-11-29

申请号：US11630160

申请日：2004-12-30

申请人： Han-Seung Koo ,  O-Hyung Kwon ,  Woongshik You ,  Soo-in Lee

发明人： Han-Seung Koo ,  O-Hyung Kwon ,  Woongshik You ,  Soo-in Lee

IPC分类号： H04N7/22

CPC分类号： H04H20/69 ,  H04H60/97 ,  H04J14/0298 ,  H04N7/10 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/4402 ,  H04N21/6118

摘要： Provided is an outdoor optical node unit (ONU) and method for converting/combining frequencies, and an apparatus and method for converting/combining frequencies in a cable television headend system. The optical node unit (ONU) includes: a downstream optic-to-electric converting unit for converting a downstream optic signal transferred through an optical cable network from a headend system to a downstream electric signal; a down frequency converting and combining unit for isolating the downstream electric signal to a broadcasting signal transmitted as a coaxial cable usable frequency band (In-Band signal) and a band signal higher than the coaxial cable usable frequency band (Super-Band (SB) signal), isolating each of channel signals in the SB signal, converting the isolated channel signals to downstream signals in a coaxial cable usable frequency band, and combining each of the frequency-converted downstream signals with the In-Band signal to generate a coaxial cable usable frequency band downstream signal; an up/down band isolating unit for outputting each of the coaxial cable usable frequency band downstream signals inputted from the down frequency converting and combining unit to a corresponding coaxial cable, or dividing an upstream signal transferred through a coaxial cable from each of subscriber's sub cells to a cable TV upstream frequency band signal and In-Band upstream channel band signal (IUC band signal) which is other upstream channel in a coaxial cable usable frequency band excepting the cable TV upstream frequency band, and outputting the cable TV upstream frequency band signal and the IUC band signal to an upstream frequency converting and combining unit; an upstream frequency converting and combining unit for converting the upstream signals which are the cable TV upstream frequency band signal and the IUC band signal inputted from the up/down band isolating unit to channels not overlapped in the coaxial cable usable frequency band, combining the converted channel signals to generate a coaxial cable usable frequency band upstream electric signal; an up electric-to-optic converting unit for receiving the optical cable usable frequency band upstream electric signal, converting the optical cable usable frequency band upstream electric signal to an upstream optical signal, and outputting the upstream optical signal to the headend system through an optical cable network; and a local oscillating unit for generating local oscillating signal for frequency-conversion, and providing the generated local oscillating signal to the down frequency converting and combining unit or the up frequency converting and combining unit.

公开(公告)号：US20050141712A1

公开(公告)日：2005-06-30

申请号：US10868508

申请日：2004-06-14

申请人： Han-Seung Koo ,  O-Hyung Kwon ,  Soo-In Lee

发明人： Han-Seung Koo ,  O-Hyung Kwon ,  Soo-In Lee

IPC分类号： H04N7/167 ,  H04N7/173

CPC分类号： H04L9/0825 ,  G06Q20/102 ,  G06Q40/12 ,  H04L9/0844 ,  H04L9/3247 ,  H04N7/1675 ,  H04N7/17309 ,  H04N7/17363 ,  H04N21/2543 ,  H04N21/25816 ,  H04N21/4181 ,  H04N21/47202 ,  H04N21/475 ,  H04N21/482 ,  H04N21/63345

摘要： A method for subscribing a service and distributing encryption key based on public-key encryption algorithm in a digital CATV system are disclosed. In accordance with an aspect of the present invention, there is provided a method including the steps of: a) generating a charged service application message; b) generating a session connection request message, signing based on a digital signature scheme with appendix on the session connection request message and transmitting to the head-end; c) generating a symmetric-based session key, signing a digital signature on the key, encrypting based on a public-key of the subscriber, transmitting the session key to the subscriber; decrypting the session key message, verifying the digital signature, extracting the session key from the session key message and storing at a Condition Access Module; and d) signing a digital signature on the charged service request message, encrypting using the extracted session key and transmitting to the head-end.

摘要翻译： 公开了一种在数字CATV系统中基于公开密钥加密算法订阅服务并分发加密密钥的方法。 根据本发明的一个方面，提供了一种方法，包括以下步骤：a）产生带电业务应用消息; b）生成会话连接请求消息，基于会话连接请求消息的附录基于数字签名方案进行签名并发送到前端; c）生成基于对称的会话密钥，在密钥上签署数字签名，基于订户的公开密钥加密，向用户发送会话密钥; 解密会话密钥消息，验证数字签名，从会话密钥消息中提取会话密钥并存储在条件访问模块; 以及d）在所收取的服务请求消息上签署数字签名，使用所提取的会话密钥进行加密并发送到头端。

公开(公告)号：US08401040B2

公开(公告)日：2013-03-19

申请号：US11299214

申请日：2005-12-08

申请人： Woong-Shik You ,  Joon-Young Jung ,  Yong-Seong Cho ,  Han-Seung Koo ,  O-Hyung Kwon ,  Soo-In Lee

发明人： Woong-Shik You ,  Joon-Young Jung ,  Yong-Seong Cho ,  Han-Seung Koo ,  O-Hyung Kwon ,  Soo-In Lee

IPC分类号： H04H20/28

CPC分类号： H04L12/2801 ,  H04L12/2854

摘要： Provided is apparatus and method for transforming cable channel. The apparatus includes a data mixing unit for receiving and mixing a band data and a first broadband data, to thereby generate a second broadband data of a broadband cable channel, and a channel adapting unit for dividing a band data from the second broadband data received through the broadband cable channel, bypassing the second broadband data to a first subscriber apparatus and transmitting the band data to a second subscriber apparatus.

摘要翻译： 提供了用于转换有线电视频道的装置和方法。 该装置包括：数据混合单元，用于接收和混合频带数据和第一宽带数据，从而产生宽带有线频道的第二宽带数据;以及信道适配单元，用于将频带数据与从第 宽带电缆信道，绕过第二宽带数据到第一用户设备，并将频带数据发送到第二用户设备。

公开(公告)号：US07739518B2

公开(公告)日：2010-06-15

申请号：US11483999

申请日：2006-07-10

申请人： Han-Seung Koo ,  Joon-Young Jung ,  Eun-Jung Kwon ,  O-Hyung Kwon ,  Soo-In Lee

发明人： Han-Seung Koo ,  Joon-Young Jung ,  Eun-Jung Kwon ,  O-Hyung Kwon ,  Soo-In Lee

IPC分类号： G06F11/30 ,  G06F12/14

CPC分类号： G06F21/575 ,  H04L63/1441

摘要： Provided is a method for securing cable modem (CM) following a Data Over Cable Service Interface Specification (DOCSIS) against physical security attacks. The method includes the steps of: a) classifying information to be stored in the DOCSIS CM based on a requirement degree of confidentiality and anti-alteration; b) storing the information in a non-volatile memory of the DOCSIS CM when the information is absolute confidential information, but processing a mechanism for deleting the information stored in the non-volatile memory in case that attacks by a hacker is sensed; c) storing the information in the non-volatile memory of the DOCSIS CM when the information is middle-level security information; and d) storing the information in a write-once (WO) memory of the DOCSIS CM when the information is absolute anti-alteration information.

摘要翻译： 提供了一种用于保护电缆调制解调器（CM）的方法，该电缆调制解调器（CM）遵循电缆数据服务接口规范（DOCSIS），防止物理安全攻击。 该方法包括以下步骤：a）根据需要的机密性和抗变形度对DOCSIS CM中存储的信息进行分类; b）当信息是绝对机密信息时，将信息存储在DOCSIS CM的非易失性存储器中，但是在感测到黑客的攻击的情况下处理用于删除存储在非易失性存储器中的信息的机制; c）当信息是中级安全信息时，将信息存储在DOCSIS CM的非易失性存储器中; 以及d）当所述信息是绝对抗变换信息时，将信息存储在DOCSIS CM的一次写入（WO）存储器中。

公开(公告)号：US07669224B2

公开(公告)日：2010-02-23

申请号：US11630160

申请日：2004-12-30

申请人： Han-Seung Koo ,  O-Hyung Kwon ,  Woongshik You ,  Soo-in Lee

发明人： Han-Seung Koo ,  O-Hyung Kwon ,  Woongshik You ,  Soo-in Lee

IPC分类号： H04N7/22

CPC分类号： H04H20/69 ,  H04H60/97 ,  H04J14/0298 ,  H04N7/10 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/4402 ,  H04N21/6118

摘要： Provided is an outdoor optical node unit (ONU) and method for converting/combining frequencies, and an apparatus and method for converting/combining frequencies in a cable television headend system. The optical node unit (ONU) includes: a downstream optic-to-electric converting unit for converting a downstream optic signal transferred through an optical cable network from a headend system to a downstream electric signal; a down frequency converting and combining unit for isolating the downstream electric signal to a broadcasting signal transmitted as a coaxial cable usable frequency band (In-Band signal) and a band signal higher than the coaxial cable usable frequency band (Super-Band (SB) signal), isolating each of channel signals in the SB signal, converting the isolated channel signals to downstream signals in a coaxial cable usable frequency band, and combining each of the frequency-converted downstream signals with the In-Band signal to generate a coaxial cable usable frequency band downstream signal; an up/down band isolating unit for outputting each of the coaxial cable usable frequency band downstream signals inputted from the down frequency converting and combining unit to a corresponding coaxial cable, or dividing an upstream signal transferred through a coaxial cable from each of subscriber's sub cells to a cable TV upstream frequency band signal and In-Band upstream channel band signal (IUC band signal) which is other upstream channel in a coaxial cable usable frequency band excepting the cable TV upstream frequency band, and outputting the cable TV upstream frequency band signal and the IUC band signal to an upstream frequency converting and combining unit; an upstream frequency converting and combining unit for converting the upstream signals which are the cable TV upstream frequency band signal and the IUC band signal inputted from the up/down band isolating unit to channels not overlapped in the coaxial cable usable frequency band, combining the converted channel signals to generate a coaxial cable usable frequency band upstream electric signal; an up electric-to-optic converting unit for receiving the optical cable usable frequency band upstream electric signal, converting the optical cable usable frequency band upstream electric signal to an upstream optical signal, and outputting the upstream optical signal to the headend system through an optical cable network; and a local oscillating unit for generating local oscillating signal for frequency-conversion, and providing the generated local oscillating signal to the down frequency converting and combining unit or the up frequency converting and combining unit.