KR20070070219A - 마스터 암호화 키들을 보호하는 시스템 및 방법 - Google Patents
마스터 암호화 키들을 보호하는 시스템 및 방법 Download PDFInfo
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- KR20070070219A KR20070070219A KR1020077011342A KR20077011342A KR20070070219A KR 20070070219 A KR20070070219 A KR 20070070219A KR 1020077011342 A KR1020077011342 A KR 1020077011342A KR 20077011342 A KR20077011342 A KR 20077011342A KR 20070070219 A KR20070070219 A KR 20070070219A
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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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
- G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
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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
- H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
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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
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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
- H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
- H04L9/0822—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using key encryption 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
- H04L9/0894—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2153—Using hardware token as a secondary aspect
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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
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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
- H04L2209/80—Wireless
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2463/00—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
- H04L2463/061—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying further key derivation, e.g. deriving traffic keys from a pair-wise master key
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2463/00—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
- H04L2463/062—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying encryption of the keys
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- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
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- General Engineering & Computer Science (AREA)
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- Computer Hardware Design (AREA)
- Databases & Information Systems (AREA)
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- Mobile Radio Communication Systems (AREA)
- Storage Device Security (AREA)
- Lock And Its Accessories (AREA)
Abstract
Description
Claims (20)
- 제1 컴퓨팅 장치상에 저장된 마스터 전송 암호화 키들을 보호하는 방법으로서, 적어도 하나의 마스터 전송 암호화 키는 상기 제1 컴퓨팅 장치와 제2 컴퓨팅 장치 사이에서 데이터 통신을 안전하게 하는데 이용되는 것인, 상기 마스터 전송 암호화 키 보호 방법에 있어서,적어도 하나의 임시 암호화 키를 생성하는 단계와;상기 적어도 하나의 마스터 전송 암호화 키를 암호화하는 단계와;상기 암호화된 적어도 하나의 마스터 전송 암호화 키를 비휘발성 기억 장치(non-volatile store)에 저장하는 단계와;상기 적어도 하나의 임시 암호화 키를 휘발성 기억 장치(volatile store)에 저장하는 단계로서, 상기 적어도 하나의 임시 암호화 키는 상기 제1 컴퓨팅 장치가 잠금 상태인(locked) 동안에 상기 제2 컴퓨팅 장치로부터 상기 제1 컴퓨팅 장치에서 수신되는 데이터의 복호화를 용이하게 하는데 이용 가능한 것인, 상기 적어도 하나의 임시 암호화 키를 휘발성 기억 장치에 저장하는 단계를 포함하는 마스터 전송 암호화 키 보호 방법.
- 제1항에 있어서, 상기 적어도 하나의 임시 암호화 키는 상기 적어도 하나의 마스터 전송 암호화 키의 사본인 것인 마스터 전송 암호화 키 보호 방법.
- 제2항에 있어서, 상기 적어도 하나의 마스터 전송 암호화 키는 상기 암호화 단계에서 콘텐츠 보호 키를 이용하여 암호화되는 것인 마스터 전송 암호화 키 보호 방법.
- 제1항에 있어서, 상기 적어도 하나의 임시 암호화 키는 상기 적어도 하나의 마스터 전송 암호화 키 각각을 암호화하는데 이용되고, 상기 적어도 하나의 임시 암호화 키는 상기 제1 컴퓨팅 장치가 잠금 상태인 동안에, 상기 적어도 하나의 임시 암호화 키가 상기 적어도 하나의 마스터 전송 암호화 키 각각을 복호화하는데 이용 가능한 점에서, 상기 제2 컴퓨팅 장치로부터 상기 제1 컴퓨팅 장치에서 수신되는 데이터의 복호화를 용이하게 하는데 이용 가능하고, 상기 적어도 하나의 마스터 전송 암호화 키는 상기 제1 컴퓨팅 장치가 잠금 상태인 동안에, 상기 제2 컴퓨팅 장치로부터 상기 제1 컴퓨팅 장치에서 수신되는 데이터의 복호화를 용이하게 하는데 이용 가능한 것인 마스터 전송 암호화 키 보호 방법.
- 제4항에 있어서, 상기 적어도 하나의 임시 암호화 키를 암호화하는 단계 및 상기 암호화된 적어도 하나의 임시 암호화 키를 비휘발성 기억 장치에 저장하는 단계를 더 포함하는 것인 마스터 전송 암호화 키 보호 방법.
- 제5항에 있어서, 상기 적어도 하나의 임시 암호화 키는 콘텐츠 보호 키를 이용하여 암호화되는 것인 마스터 전송 암호화 키 보호 방법.
- 제1항에 있어서, 상기 제2 컴퓨팅 장치로부터 데이터를 수신하는 단계와, 상기 적어도 하나의 임시 암호화 키를 이용하여 수신된 데이터를 복호화하는 단계와, 상기 복호화된 데이터의 적어도 부분집합을 비휘발성 기억 장치에 저장하는 단계를 더 포함하는 것인 마스터 전송 암호화 키 보호 방법.
- 제7항에 있어서, 콘텐츠 보호 키를 이용하여 상기 저장된 데이터의 적어도 부분집합을 암호화하는 단계를 더 포함하는 것인 마스터 전송 암호화 키 보호 방법.
- 제8항에 있어서, 상기 적어도 하나의 임시 암호화 키는 상기 저장된 데이터의 적어도 부분집합을 암호화하는데 이용된 것과 같은 동일한 콘텐츠 보호 키를 이용하여 암호화되는 것인 마스터 전송 암호화 키 보호 방법.
- 제1항에 있어서, 마스터 전송 암호화 키들을 보호하는 모드가 작동되어있다는 것을 검증하는 단계를 더 포함하고, 상기 마스터 전송 암호화 키들을 보호하는 모드가 작동된 경우에만, 상기 적어도 하나의 임시 암호화 키를 암호화하는 단계 및 상기 암호화된 적어도 하나의 임시 암호화 키를 비휘발성 기억 장치에 저장하는 단계가 수행되는 것인 마스터 전송 암호화 키 보호 방법.
- 제10항에 있어서, 상기 마스터 전송 암호화 키들을 보호하는 모드는 IT 정책을 통해 작동되는 것인 마스터 전송 암호화 키 보호 방법.
- 제1항에 있어서, 상기 적어도 하나의 임시 암호화 키를 생성하는 단계 및 상기 적어도 하나의 임시 암호화 키를 휘발성 기억 장치에 저장하는 단계는 제1 컴퓨팅 장치가 재시작한 이후에 반복되는 것인 마스터 전송 암호화 키 보호 방법.
- 제12항에 있어서, 상기 적어도 하나의 임시 암호화 키를 생성하는 단계 및 상기 적어도 하나의 임시 암호화 키를 휘발성 기억 장치에 저장하는 단계는 제1 컴퓨팅 장치가 재시작하고 사용자가 상기 제1 컴퓨팅 장치를 잠금 해제한(unlocked) 이후에 반복되고, 상기 제1 컴퓨팅 장치와 상기 제2 컴퓨팅 장치 사이의 데이터 통신은 사용자가 상기 제1 컴퓨팅 장치를 잠금 해제할 때까지 금지되는 것인 마스터 전송 암호화 키 보호 방법.
- 복수의 명령어가 저장되어 있는 컴퓨터 판독 가능한 기록 매체로서, 상기 명령어는 청구항 제1항에 기재된 바와 같은 마스터 전송 암호화 키 보호 방법의 각 단계들을 수행하는 것인 컴퓨터 판독 가능한 기록 매체.
- 제1 컴퓨팅 장치와 제2 컴퓨팅 장치를 포함하고, 상기 제1 컴퓨팅 장치상에 저장된 마스터 전송 암호화 키들을 보호하는 시스템으로서, 상기 적어도 하나의 마 스터 전송 암호화 키는 상기 제1 컴퓨팅 장치와 상기 제2 컴퓨팅 장치 사이에서 데이터 통신을 안전하게 하는데 이용되며, 상기 제1 컴퓨팅 장치상에서 실행하는 애플리케이션은 청구항 제1항에 기재된 바와 같은 마스터 전송 암호화 키 보호 방법의 각 단계들을 수행하게 되어 있는 것인 마스터 전송 암호화 키 보호 시스템.
- 제15항에 있어서, 상기 제1 컴퓨팅 장치는 이동 장치인 것인 마스터 전송 암호화 키 보호 시스템.
- 제16항에 있어서, 비휘발성 기억 장치는 플래시 메모리인 것인 마스터 전송 암호화 키 보호 시스템.
- 제16항에 있어서, 휘발성 기억 장치는 RAM인 것인 마스터 전송 암호화 키 보호 시스템.
- 제16항에 있어서, 상기 제2 컴퓨팅 장치는 데이터 서버인 것인 마스터 전송 암호화 키 보호 시스템.
- 제19항에 있어서, 상기 데이터 서버는 메시지 관리 서버인 것인 마스터 전송 암호화 키 보호 시스템.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US72627105P | 2005-10-14 | 2005-10-14 | |
US60/726,271 | 2005-10-14 |
Publications (2)
Publication Number | Publication Date |
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KR20070070219A true KR20070070219A (ko) | 2007-07-03 |
KR100902627B1 KR100902627B1 (ko) | 2009-06-15 |
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KR1020077011342A KR100902627B1 (ko) | 2005-10-14 | 2005-12-22 | 마스터 암호화 키들을 보호하는 시스템 및 방법 |
Country Status (8)
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US (1) | US8572389B2 (ko) |
EP (1) | EP1803249B1 (ko) |
KR (1) | KR100902627B1 (ko) |
CN (1) | CN101061662B (ko) |
AT (1) | ATE463897T1 (ko) |
CA (1) | CA2585987C (ko) |
DE (1) | DE602005020482D1 (ko) |
WO (1) | WO2007041824A1 (ko) |
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CN101061662B (zh) | 2011-08-17 |
ATE463897T1 (de) | 2010-04-15 |
EP1803249A4 (en) | 2008-03-19 |
KR100902627B1 (ko) | 2009-06-15 |
EP1803249A1 (en) | 2007-07-04 |
WO2007041824A1 (en) | 2007-04-19 |
CN101061662A (zh) | 2007-10-24 |
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