JPH0345944B2 - - Google Patents
Info
- Publication number
- JPH0345944B2 JPH0345944B2 JP58215410A JP21541083A JPH0345944B2 JP H0345944 B2 JPH0345944 B2 JP H0345944B2 JP 58215410 A JP58215410 A JP 58215410A JP 21541083 A JP21541083 A JP 21541083A JP H0345944 B2 JPH0345944 B2 JP H0345944B2
- Authority
- JP
- Japan
- Prior art keywords
- identification code
- data
- decryption
- key
- encryption
- 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.)
- Expired - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 claims description 28
- 238000003860 storage Methods 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 6
- 239000000284 extract Substances 0.000 claims 1
- 238000012384 transportation and delivery Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
- H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
- H04H60/23—Arrangements for conditional access to broadcast information or to broadcast-related services using cryptography, e.g. encryption, authentication, key distribution
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
- H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
- H04H60/15—Arrangements for conditional access to broadcast information or to broadcast-related services on receiving information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
- H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
- H04H60/16—Arrangements for conditional access to broadcast information or to broadcast-related services on playing information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58215410A JPS60107941A (ja) | 1983-11-16 | 1983-11-16 | 暗号デジタル放送受信装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58215410A JPS60107941A (ja) | 1983-11-16 | 1983-11-16 | 暗号デジタル放送受信装置 |
Related Child Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2282074A Division JPH03179839A (ja) | 1990-10-19 | 1990-10-19 | 暗号デジタル放送装置 |
JP2282075A Division JPH03179840A (ja) | 1990-10-19 | 1990-10-19 | 暗号デジタル放送受信装置 |
JP2282077A Division JPH03179842A (ja) | 1990-10-19 | 1990-10-19 | 暗号デジタル放送装置 |
JP2282076A Division JPH03179841A (ja) | 1990-10-19 | 1990-10-19 | 暗号デジタル放送受信装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60107941A JPS60107941A (ja) | 1985-06-13 |
JPH0345944B2 true JPH0345944B2 (zh) | 1991-07-12 |
Family
ID=16671860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58215410A Granted JPS60107941A (ja) | 1983-11-16 | 1983-11-16 | 暗号デジタル放送受信装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60107941A (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011234362A (ja) * | 2010-04-26 | 2011-11-17 | Logiways France | 情報暗号化/解読鍵を共有する方法ならびに情報暗号化/解読鍵を共有する方法を適用した鍵共有システムおよびアクセス制御システム |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10149338A (ja) * | 1996-09-20 | 1998-06-02 | I O Data Kiki:Kk | ネットワークシステムおよび取引方法 |
-
1983
- 1983-11-16 JP JP58215410A patent/JPS60107941A/ja active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011234362A (ja) * | 2010-04-26 | 2011-11-17 | Logiways France | 情報暗号化/解読鍵を共有する方法ならびに情報暗号化/解読鍵を共有する方法を適用した鍵共有システムおよびアクセス制御システム |
Also Published As
Publication number | Publication date |
---|---|
JPS60107941A (ja) | 1985-06-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4887296A (en) | Cryptographic system for direct broadcast satellite system | |
US5341425A (en) | Methods and apparatus for uniquely encrypting data at a plurality of data transmission sites for transmission to a reception site | |
US5937067A (en) | Apparatus and method for local encryption control of a global transport data stream | |
EP0194769B1 (en) | Cryptographic system for a direct broadcast by satellite network | |
JPH04286434A (ja) | 安全な通信網を保つための端末の機能更新方法とその装置 | |
JP4043669B2 (ja) | 限定受信方式における関連情報の処理装置 | |
JPH05145923A (ja) | デジタル的に高品質化できるテレビジヨン信号復号器用独立外部機密保護モジユール | |
JPH06125554A (ja) | 加入衛星テレビジョン暗号化用防護方法 | |
EP2401866A1 (en) | Cable television secure communication system for one way restricted access | |
EP0179612B1 (en) | Cryptographic system for direct broadcast satellite network | |
JPH0468836B2 (zh) | ||
JPH0550172B2 (zh) | ||
JP2000295202A (ja) | 限定受信システム | |
JPH03179839A (ja) | 暗号デジタル放送装置 | |
JPH03179842A (ja) | 暗号デジタル放送装置 | |
JPH10117173A (ja) | 情報配信装置および情報受信装置 | |
JPH0345944B2 (zh) | ||
JPH0946672A (ja) | デスクランブル装置および方法 | |
JP4536092B2 (ja) | 限定受信方式の処理装置 | |
JPS6032449A (ja) | 暗号化デジタル放送装置 | |
JPH03179840A (ja) | 暗号デジタル放送受信装置 | |
JPS6190547A (ja) | 暗号化デジタル伝送装置 | |
JPH06152588A (ja) | 同時同報通信方式 | |
JP4536091B2 (ja) | 限定受信方式の処理装置及び処理方法 | |
JPH03235442A (ja) | 暗号化通信システム |