KR100712498B1 - 하드디스크 드라이브의 난수 발생 방법 - Google Patents
하드디스크 드라이브의 난수 발생 방법 Download PDFInfo
- Publication number
- KR100712498B1 KR100712498B1 KR1020030040481A KR20030040481A KR100712498B1 KR 100712498 B1 KR100712498 B1 KR 100712498B1 KR 1020030040481 A KR1020030040481 A KR 1020030040481A KR 20030040481 A KR20030040481 A KR 20030040481A KR 100712498 B1 KR100712498 B1 KR 100712498B1
- Authority
- KR
- South Korea
- Prior art keywords
- random number
- sector
- generating
- track
- hard disk
- Prior art date
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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
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
Description
Claims (5)
- 하드디스크 드라이브에서 암호화 및 인증을 위해 사용되는 난수를 발생하는 방법에 있어서,헤드가 임의의 트랙 상에 트랙 온 되기까지 대기하는 트랙 온 대기 과정;상기 트랙으로부터 복수의 섹터 번호들을 읽어내는 섹터 번호 획득 과정; 및상기 읽어낸 복수의 섹터 번호들을 조합하여 상기 난수를 발생하는 난수 발생 과정을 포함하는 하드디스크 드라이브의 난수 발생 방법.
- 제1항에 있어서, 상기 섹터 번호 획득 과정은상기 트랙으로부터 랜덤한 시간 간격으로 복수의 섹터 번호들을 읽어내는 것을 특징으로 하는 하드디스크 드라이브의 난수 발생 방법.
- 제2항에 있어서, 상기 섹터 번호 획득 과정은이전에 읽어낸 섹터 번호의 값에 의존하여 다음의 섹터 번호를 읽어내는 시간 간격을 결정하는 것을 특징으로 하는 하드디스크 드라이브의 난수 발생 방법.
- 삭제
- 제1항에 있어서, 상기 섹터 번호 획득 과정은상기 트랙 온 된 트랙으로부터 하나의 섹터 번호를 읽어내는 과정; 및트랙을 바꾸어 상기 트랙 온 대기 과정을 다시 수행하는 과정을 포함하는 것을 특징으로 하는 하드디스크 드라이브의 난수 발생 방법.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030040481A KR100712498B1 (ko) | 2003-06-21 | 2003-06-21 | 하드디스크 드라이브의 난수 발생 방법 |
JP2004182806A JP4515166B2 (ja) | 2003-06-21 | 2004-06-21 | ディスクドライブにおける乱数発生方法及びそのシステム |
US10/872,838 US8650234B2 (en) | 2003-06-21 | 2004-06-21 | Method and system for generating a random number in disk drive |
US14/172,489 US20140205093A1 (en) | 2003-06-21 | 2014-02-04 | Method and system for generating a random number |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030040481A KR100712498B1 (ko) | 2003-06-21 | 2003-06-21 | 하드디스크 드라이브의 난수 발생 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040110924A KR20040110924A (ko) | 2004-12-31 |
KR100712498B1 true KR100712498B1 (ko) | 2007-04-27 |
Family
ID=33516438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020030040481A KR100712498B1 (ko) | 2003-06-21 | 2003-06-21 | 하드디스크 드라이브의 난수 발생 방법 |
Country Status (3)
Country | Link |
---|---|
US (2) | US8650234B2 (ko) |
JP (1) | JP4515166B2 (ko) |
KR (1) | KR100712498B1 (ko) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100712498B1 (ko) * | 2003-06-21 | 2007-04-27 | 삼성전자주식회사 | 하드디스크 드라이브의 난수 발생 방법 |
US7330328B2 (en) * | 2006-02-17 | 2008-02-12 | Seagate Technology Llc | Random number generation using back electromotive force (BEMF) values |
JP4685693B2 (ja) * | 2006-04-14 | 2011-05-18 | シーゲイト テクノロジー エルエルシー | 逆起電力値を使用する乱数発生 |
JP4689539B2 (ja) * | 2006-06-01 | 2011-05-25 | キヤノン株式会社 | データ処理装置およびその方法 |
JP2009258141A (ja) * | 2006-06-30 | 2009-11-05 | Kiyoto Yui | 無限乱数発生装置を用いた無限暗号化・復号装置及び無限暗号化装置 |
US8131920B2 (en) * | 2007-12-06 | 2012-03-06 | Hitachi Global Storage Technologies, Netherlands B.V. | Method and system for dynamically allocating read and write sequence randomizer |
US20090161246A1 (en) * | 2007-12-23 | 2009-06-25 | Hitachi Global Storage Technologies Netherlands, B.V. | Random Number Generation Using Hard Disk Drive Information |
US8019935B2 (en) * | 2007-12-23 | 2011-09-13 | Hitachi Global Storage Technologies Netherlands, B.V. | Random number generation for a host system using a hard disk drive |
US9256562B1 (en) * | 2012-10-04 | 2016-02-09 | Qlogic, Corporation | Method and system for communication between a computing system and a device |
US10372528B1 (en) | 2014-12-15 | 2019-08-06 | Seagate Technology Llc | Random values from data errors |
US10338890B1 (en) | 2015-01-07 | 2019-07-02 | Seagate Technology Llc | Random values from data errors |
US9934094B2 (en) * | 2015-10-30 | 2018-04-03 | Seagate Technology Llc | Process for verification of randomly generated I/O requests |
CN105447154B (zh) * | 2015-11-30 | 2019-05-21 | 中国联合网络通信集团有限公司 | 一种熵池的更新方法和更新系统 |
JP6980407B2 (ja) * | 2016-05-30 | 2021-12-15 | ローム株式会社 | 乱数生成方法 |
CN108279864A (zh) * | 2018-01-31 | 2018-07-13 | 上海集成电路研发中心有限公司 | 系统随机数生成方法 |
Citations (6)
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JPH10211108A (ja) * | 1997-01-30 | 1998-08-11 | Jiro Suyama | 焼物調理機 |
JP2000048494A (ja) | 1998-07-27 | 2000-02-18 | Toshiba Corp | ディスク記憶装置及び同装置におけるサーボセクタアドレスエラー検出方法 |
KR20010043582A (ko) * | 1999-03-15 | 2001-05-25 | 요트.게.아. 롤페즈 | 기록 액세스시에 위치와 키를 무작위화하여 저장매체 상에복제 방지를 하는 방법 및 장치 |
KR20010051023A (ko) * | 1999-10-13 | 2001-06-25 | 마츠시타 덴끼 산교 가부시키가이샤 | 정보기록 매체와 그것을 사용하여 정보를 기록 및재생하는 방법 및 장치 |
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US8019935B2 (en) * | 2007-12-23 | 2011-09-13 | Hitachi Global Storage Technologies Netherlands, B.V. | Random number generation for a host system using a hard disk drive |
-
2003
- 2003-06-21 KR KR1020030040481A patent/KR100712498B1/ko active IP Right Grant
-
2004
- 2004-06-21 JP JP2004182806A patent/JP4515166B2/ja not_active Expired - Fee Related
- 2004-06-21 US US10/872,838 patent/US8650234B2/en active Active
-
2014
- 2014-02-04 US US14/172,489 patent/US20140205093A1/en not_active Abandoned
Patent Citations (6)
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JPH10211108A (ja) * | 1997-01-30 | 1998-08-11 | Jiro Suyama | 焼物調理機 |
JP2000048494A (ja) | 1998-07-27 | 2000-02-18 | Toshiba Corp | ディスク記憶装置及び同装置におけるサーボセクタアドレスエラー検出方法 |
KR20010043582A (ko) * | 1999-03-15 | 2001-05-25 | 요트.게.아. 롤페즈 | 기록 액세스시에 위치와 키를 무작위화하여 저장매체 상에복제 방지를 하는 방법 및 장치 |
KR20010051023A (ko) * | 1999-10-13 | 2001-06-25 | 마츠시타 덴끼 산교 가부시키가이샤 | 정보기록 매체와 그것을 사용하여 정보를 기록 및재생하는 방법 및 장치 |
JP2002203367A (ja) | 2000-12-28 | 2002-07-19 | Toshiba Corp | データ記録装置及びデータ記録方法 |
US20030070083A1 (en) | 2001-09-28 | 2003-04-10 | Kai-Wilhelm Nessler | Method and device for encryption/decryption of data on mass storage device |
Also Published As
Publication number | Publication date |
---|---|
KR20040110924A (ko) | 2004-12-31 |
US20040258398A1 (en) | 2004-12-23 |
JP4515166B2 (ja) | 2010-07-28 |
US8650234B2 (en) | 2014-02-11 |
US20140205093A1 (en) | 2014-07-24 |
JP2005011356A (ja) | 2005-01-13 |
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