KR100510692B1 - 제한 수신 시스템 - Google Patents
제한 수신 시스템 Download PDFInfo
- Publication number
- KR100510692B1 KR100510692B1 KR10-2003-0004321A KR20030004321A KR100510692B1 KR 100510692 B1 KR100510692 B1 KR 100510692B1 KR 20030004321 A KR20030004321 A KR 20030004321A KR 100510692 B1 KR100510692 B1 KR 100510692B1
- Authority
- KR
- South Korea
- Prior art keywords
- key
- host interface
- key value
- host
- descrambler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000605 extraction Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000006854 communication Effects 0.000 description 4
- 239000000284 extract Substances 0.000 description 2
- 230000007175 bidirectional communication Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/30—Controlling by gas-analysis apparatus
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultraviolet radiation
- A61L9/205—Ultraviolet radiation using a photocatalyst or photosensitiser
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/266—Drying gases or vapours by filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/88—Handling or mounting catalysts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Molecular Biology (AREA)
- Hydrology & Water Resources (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Materials Engineering (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Description
Claims (3)
- 호스트 인터페이스를 통해 입력되는 키 추출에 필요한 패킷(EMM/ECM)으로부터 디스크램블 수행을 위한 키 값을 추출하는 스마트 카드;상기 호스트 인터페이스를 통해 키 값을 입력받고 이를 자체적인 암호화 알고리즘에 따라 암호화하여 키 레지스터 및 호스트 인터페이스로의 입/출력을 관리하고 상기 디스크램블러의 요청에 따라 복호화하여 전송하는 키 보안 모듈;상기 키 보안 모듈에서 암호화 되어 전송되는 키 값을 저장하기 위한 키 레지스터;스크램블된 트랜스포트 스트림(Transport Stream: TS)을 상기 키 보안 모듈로부터 복호화 된 키 값을 수신하여 디스크램블(Descrambl)하기 위한 디스크램블러;상기 디스크램블러로부터 입력된 트랜스포트 스트림을 분석하여 키 추출에 필요한 패킷을 상기 호스트 인터페이스를 통해 호스트로 전송하는 시스템 파서;상기 시스템 파서(System Parser)로부터 전송된 키 추출에 필요한 패킷을 호스트 인터페이스를 통하여 상기 스마트 카드로 전송하는 호스트를 포함하여 구성되는 것을 특징으로 하는 제한 수신 시스템.
- 제1 항에 있어서, 상기 키 보안 모듈은,호스트 인터페이스를 통해 입력된 키 값을 암호화하여 키 레지스터에 저장하거나 키 레지스터에서 암호화된 키 값을 읽어들여 호스트 인터페이스를 통해 전송하기 위한 암호화 모듈과,상기 키 레지스터에 저장된 암호화된 키 값을 읽어들여 복호화하여 디스크램블러로 전송하기 위한 복호화 모듈을 포함하여 구성되는 것을 특징으로 하는 제한 수신 시스템.
- 제2 항에 있어서, 상기 암호화 모듈 및 복호화 모듈은,각각 AES(Advanced Encryption Standard) 알고리즘에 의해 입력된 키 값을 암호화하거나 복호화하는 것을 특징으로 하는 제한 수신 시스템.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2003-0004321A KR100510692B1 (ko) | 2003-01-22 | 2003-01-22 | 제한 수신 시스템 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2003-0004321A KR100510692B1 (ko) | 2003-01-22 | 2003-01-22 | 제한 수신 시스템 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040067287A KR20040067287A (ko) | 2004-07-30 |
KR100510692B1 true KR100510692B1 (ko) | 2005-08-31 |
Family
ID=37356839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2003-0004321A Expired - Fee Related KR100510692B1 (ko) | 2003-01-22 | 2003-01-22 | 제한 수신 시스템 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100510692B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100879428B1 (ko) * | 2006-12-13 | 2009-01-20 | 주식회사 대우일렉트로닉스 | 셋톱박스의 조건부 액세스 모듈 삽입시 초기 인식 방법 |
-
2003
- 2003-01-22 KR KR10-2003-0004321A patent/KR100510692B1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR20040067287A (ko) | 2004-07-30 |
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