KR100320183B1 - 디지탈데이터 플레이어의 파일 암호화 장치 - Google Patents
디지탈데이터 플레이어의 파일 암호화 장치 Download PDFInfo
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- KR100320183B1 KR100320183B1 KR1019990009014A KR19990009014A KR100320183B1 KR 100320183 B1 KR100320183 B1 KR 100320183B1 KR 1019990009014 A KR1019990009014 A KR 1019990009014A KR 19990009014 A KR19990009014 A KR 19990009014A KR 100320183 B1 KR100320183 B1 KR 100320183B1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/0464—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload using hop-by-hop encryption, i.e. wherein an intermediate entity decrypts the information and re-encrypts it before forwarding it
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00137—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to contents recorded on or reproduced from a record carrier to authorised users
- G11B20/00144—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to contents recorded on or reproduced from a record carrier to authorised users involving a user identifier, e.g. a unique customer ID
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00137—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to contents recorded on or reproduced from a record carrier to authorised users
- G11B20/00152—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to contents recorded on or reproduced from a record carrier to authorised users involving a password
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
- G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
- G11B20/00224—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is obtained from a remote server
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
- G11B20/00478—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier wherein contents are decrypted and re-encrypted with a different key when being copied from/to a record carrier
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00855—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a step of exchanging information with a remote server
- G11B20/00869—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a step of exchanging information with a remote server wherein the remote server can deliver the content to a receiving device
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/0478—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload applying multiple layers of encryption, e.g. nested tunnels or encrypting the content with a first key and then with at least a second key
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/088—Usage controlling of secret information, e.g. techniques for restricting cryptographic keys to pre-authorized uses, different access levels, validity of crypto-period, different key- or password length, or different strong and weak cryptographic algorithms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
- G11B2020/1062—Data buffering arrangements, e.g. recording or playback buffers
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
- G11B2020/1062—Data buffering arrangements, e.g. recording or playback buffers
- G11B2020/1075—Data buffering arrangements, e.g. recording or playback buffers the usage of the buffer being restricted to a specific kind of data
- G11B2020/10759—Data buffering arrangements, e.g. recording or playback buffers the usage of the buffer being restricted to a specific kind of data content data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/60—Digital content management, e.g. content distribution
- H04L2209/605—Copy protection
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- Theoretical Computer Science (AREA)
- Software Systems (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Storage Device Security (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Reverberation, Karaoke And Other Acoustics (AREA)
Abstract
Description
Claims (8)
- 통신망을 통해 서버로부터 전체적으로 암호화된 디지탈데이터와 암호화 키이를 수신받아 저장하는 저장수단과; 상기 저장수단에 저장되어 있는 암호화된 디지탈데이터를 상기 암호화 키이를 이용하여 해독하는 해독수단과; 상기 해독수단에 의해 해독된 디지탈데이터를 소정 단위로 저장하는 버퍼와; 상기 버퍼에서 출력되는 디지탈데이터를 소정 간격을 두고 부분적으로 암호화 처리하는 암호화 수단과; 상기 부분적으로 암호화 된 디지탈 데이터를 디지탈데이터 플레이어측으로 다운로드하는 다운로드수단을 포함하여 구성한 것을 특징으로 하는 디지탈데이터 플레이어의 파일 암호화 장치.
- 통신망을 통해 서버로부터 전체적으로 암호화된 디지탈데이터와 암호화 키이를 수신받아 저장수단에 저장시킨 후 그 암호화 키이로 해독하고, 해독된 디지탈데이터를 소정 단위로 버퍼에 저장시키면서 이로부터 출력되는 디지탈데이터를 소정 간격을 두고 부분적으로 암호화 처리하여 디지탈데이터 플레이어측으로 다운로드하는 것을 특징으로 하는 디지탈데이터 플레이어의 파일 암호화 프로그램을 기록한 기록매체.
- 통신망을 통해 서버로부터 전체적으로 암호화된 디지탈데이터와 암호화 키이를 수신받아 기록매체에 저장하는 제1과정과; 상기 기록매체에 저장되어 있는 암호화된 디지탈데이터를 상기 암호화 키이를 이용하여 해독하는 제2과정과; 상기 해독된 디지탈데이터를 소정 단위로 버퍼에 저장하는 제3과정과; 상기 버퍼로부터 출력되는 디지탈데이터를 소정 간격을 두고 부분적으로 암호화 처리하여 디지탈데이터 플레이어측으로 다운로드하는 제4과정으로 이루어지는 것을 특징으로 하는 디지탈데이터 플레이어의 파일 암호화 방법.
- 제3항에 있어서, 제3과정은 해독된 디지탈데이터를 버퍼에 저장할 때 해당 파일의 용량에 따라 버퍼의 유효용량을 가변적으로 설정하는 것을 특징으로 하는 디지탈데이터 플레이어의 파일 암호화 방법.
- 제3항에 있어서, 제4과정은 해독된 디지탈데이터에 소정 간격으로 암호화처리된 구간을 두는 방식으로 암호화 처리하는 것을 특징으로 하는 디지탈데이터 플레이어의 파일 암호화 방법.
- 통신망을 통해 복수개의 서버로부터 전체적으로 암호화된 디지탈데이터와 암호화 키이를 각기 수신받아 저장하는 저장수단과; 상기 저장수단에 저장되어 있는 각각의 암호화된 디지탈데이터를 해당 암호화 키이를 이용하여 각기 해독하는 복수개의 해독수단과; 상기 해독수단에 의해 해독된 디지탈데이터 중에서 선택된 디지탈데이터를 소정 단위로 저장하는 버퍼와; 상기 버퍼에서 출력되는 디지탈데이터를 소정 간격을 두고 부분적으로 암호화 처리하는 암호화 수단과; 상기 부분적으로 암호화 처리된 데이터를 디지탈데이터 플레이어측으로 다운로드하는 다운로드수단을 포함하여 구성한 것을 특징으로 하는 디지탈데이터 플레이어의 파일 암호화 장치.
- 통신망을 통해 복수개의 서버로부터 전체적으로 암호화 된 디지탈데이터와 암호화 키이를 각기 수신받아 저장수단에 저장시킨 후 해당 암호화 키이로 각각 해독하고, 해독된 디지탈데이터 중에서 선택된 디지탈데이터를 소정 단위로 버퍼에 저장시키면서 이로부터 출력되는 디지탈데이터를 소정 간격을 두고 부분적으로 암호화 처리하여 디지탈데이터 플레이어측으로 다운로드하는 것을 특징으로 하는 디지탈데이터 플레이어의 파일 암호화 프로그램을 기록한 기록매체.
- 통신망을 통해 복수개의 서버로부터 전체적으로 암호화 된 디지탈데이터와 암호화 키이를 각기 수신받아 기록매체에 저장하는 제1과정과; 상기 기록매체에 저장되어 있는 각각의 암호화된 디지탈데이터를 해당 암호화 키이를 이용하여 해독하는 제2과정과; 상기 해독된 디지탈데이터 중에서 선택된 디지탈데이터를 소정 단위로 버퍼에 저장하는 제3과정과; 상기 버퍼로부터 출력되는 디지탈데이터를 소정 간격을 두고 부분적으로 암호화 처리하여 디지탈데이터 플레이어측으로 다운로드하는 제4과정으로 이루어지는 것을 특징으로 하는 디지탈데이터 플레이어의 파일 암호화 방법.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990009014A KR100320183B1 (ko) | 1999-03-17 | 1999-03-17 | 디지탈데이터 플레이어의 파일 암호화 장치 |
| JP11298391A JP2000267940A (ja) | 1999-03-17 | 1999-10-20 | デジタルファイルの暗号化装置及び暗号化方法とその記録媒体 |
| CNA2005101253319A CN1783102A (zh) | 1999-03-17 | 1999-10-28 | 用于拷贝保护的方法和系统 |
| CN99122087A CN1267856A (zh) | 1999-03-17 | 1999-10-28 | 数字数据文件加密装置和方法以及加密程序的记录介质 |
| US09/527,670 US7130426B1 (en) | 1999-03-17 | 2000-03-17 | Digital data file encryption apparatus and method and recording medium for recording digital data file encryption program thereon |
| US12/252,306 USRE41942E1 (en) | 1999-03-17 | 2008-10-15 | Digital data file encryption apparatus and method and recording medium for recording digital data file encryption program thereon |
| US12/252,300 USRE42171E1 (en) | 1999-03-17 | 2008-10-15 | Digital data file encryption apparatus and method and recording medium for recording digital data file encryption program thereon |
| US12/252,311 USRE42107E1 (en) | 1999-03-17 | 2008-10-15 | Digital data file encryption apparatus and method and recording medium for recording digital data file encryption program thereon |
| US12/252,295 USRE42106E1 (en) | 1999-03-17 | 2008-10-15 | Digital data file encryption apparatus and method and recording medium for recording digital data file encryption program thereon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990009014A KR100320183B1 (ko) | 1999-03-17 | 1999-03-17 | 디지탈데이터 플레이어의 파일 암호화 장치 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20000060590A KR20000060590A (ko) | 2000-10-16 |
| KR100320183B1 true KR100320183B1 (ko) | 2002-01-10 |
Family
ID=36773274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019990009014A Expired - Fee Related KR100320183B1 (ko) | 1999-03-17 | 1999-03-17 | 디지탈데이터 플레이어의 파일 암호화 장치 |
Country Status (4)
| Country | Link |
|---|---|
| US (5) | US7130426B1 (ko) |
| JP (1) | JP2000267940A (ko) |
| KR (1) | KR100320183B1 (ko) |
| CN (2) | CN1267856A (ko) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040031827A (ko) * | 2002-10-04 | 2004-04-14 | (주)메트로디알엠 | 패키징된 디지털 콘텐츠에 대한 인증 시스템 및 그 방법 |
| KR100809664B1 (ko) | 2006-07-11 | 2008-03-05 | 하나 마이크론(주) | 암호화된 컨텐츠를 저장하는 저장 장치 및 그 컨텐츠의제공 방법 |
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|---|---|---|---|---|
| US7080260B2 (en) * | 1996-11-19 | 2006-07-18 | Johnson R Brent | System and computer based method to automatically archive and retrieve encrypted remote client data files |
| US6961567B1 (en) * | 2000-12-07 | 2005-11-01 | Palm, Inc. | Generic activation and registration framework for wireless devices |
| US7555571B1 (en) | 2001-01-05 | 2009-06-30 | Palm, Inc. | Activation of mobile computing device on a cellular network |
| JP4752113B2 (ja) * | 2001-01-16 | 2011-08-17 | ソニー株式会社 | 電子機器及び信号伝送方法 |
| US7526795B2 (en) * | 2001-03-27 | 2009-04-28 | Micron Technology, Inc. | Data security for digital data storage |
| KR100746771B1 (ko) | 2001-04-24 | 2007-08-06 | 엘지전자 주식회사 | 휴대용 오디오 기기에서의 오디오 파일 재생방법 |
| KR100430158B1 (ko) | 2001-06-18 | 2004-05-04 | 지은묵 | 인터넷방송의 콘텐츠 위탁 영업 시스템 및 방법 |
| JP4054190B2 (ja) * | 2001-12-27 | 2008-02-27 | 松下電器産業株式会社 | データ転送システム |
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Also Published As
| Publication number | Publication date |
|---|---|
| USRE41942E1 (en) | 2010-11-16 |
| US7130426B1 (en) | 2006-10-31 |
| KR20000060590A (ko) | 2000-10-16 |
| USRE42171E1 (en) | 2011-02-22 |
| USRE42106E1 (en) | 2011-02-01 |
| USRE42107E1 (en) | 2011-02-01 |
| CN1267856A (zh) | 2000-09-27 |
| JP2000267940A (ja) | 2000-09-29 |
| CN1783102A (zh) | 2006-06-07 |
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