KR100902627B1 - 마스터 암호화 키들을 보호하는 시스템 및 방법 - Google Patents
마스터 암호화 키들을 보호하는 시스템 및 방법 Download PDFInfo
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- KR100902627B1 KR100902627B1 KR1020077011342A KR20077011342A KR100902627B1 KR 100902627 B1 KR100902627 B1 KR 100902627B1 KR 1020077011342 A KR1020077011342 A KR 1020077011342A KR 20077011342 A KR20077011342 A KR 20077011342A KR 100902627 B1 KR100902627 B1 KR 100902627B1
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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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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 통신의 비밀성(confidentiality)을 보호하는 데 이용되고, 상기 제1 컴퓨팅 장치상에 저장될 데이터는 콘텐츠 보호키를 사용하여 암호화될 수 있는 것인, 상기 마스터 전송 암호화 키 보호 방법에 있어서,복호화된 형태로 적어도 하나의 마스터 전송 암호화 키의 사본을 생성하는 단계와;상기 콘텐츠 보호키를 사용하여 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;복호화된 형태의 상기 적어도 하나의 마스터 전송 암호화 키의 사본을 휘발성 기억 장치(volatile store)에 저장하는 단계로서, 상기 제1 컴퓨팅 장치가 상기 제1 컴퓨팅 장치의 비인증된 사용을 방지하기 위해 잠금 상태인(locked) 동안에, 복호화된 형태의 상기 적어도 하나의 마스터 전송 암호화 키의 사본은 상기 제2 컴퓨팅 장치로부터 상기 제1 컴퓨팅 장치에 수신되는 데이터의 복호화에 사용하기 위해 상기 휘발성 기억 장치에 저장되는 것인, 상기 적어도 하나의 임시 암호화 키를 휘발성 기억 장치에 저장하는 단계를 포함하는 마스터 전송 암호화 키 보호 방법.
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- 제1항에 있어서, 상기 제2 컴퓨팅 장치로부터 데이터를 수신하는 단계, 상기 적어도 하나의 마스터 전송 암호화 키의 사본을 사용하여 상기 제2 컴퓨팅 장치로부터 상기 데이터를 암호화하는 단계, 및 상기 제2 컴퓨팅 장치로부터의 적어도 상기 데이터의 서브셋(subset)을 비휘발성 기억 장치에 저장하는 단계를 더 포함하는 마스터 전송 암호화 키 보호 방법.
- 제7항에 있어서, 상기 콘텐츠 보호키를 사용하여 상기 제2 컴퓨팅 장치로부터의 적어도 상기 데이터 서브셋을 암호화하는 단계를 더 포함하는 마스터 전송 암호화 키 보호 방법.
- 제7항에 있어서, 상기 적어도 하나의 마스터 전송 암호화 키를 암호화하는 데 사용된 것과 상이한 콘텐츠 보호키를 사용하여 상기 제2 컴퓨팅 장치로부터의 적어도 상기 데이터의 서브셋을 암호화하는 단계를 더 포함하는 마스터 전송 암호화 키 보호 방법.
- 제1항, 제7항, 제8항, 제9항 중 어느 한 항에 있어서, 마스터 전송 암호화 키들을 보호하기 위한 모드가 인에이블되는 것을 검증하는 단계를 더 포함하고,상기 적어도 하나의 마스터 전송 암호화 키를 암호화하는 단계와 상기 암호화된 적어도 하나의 마스터 전송 암호화 키를 비휘발성 기억 장치에 저장하는 단계는, 상기 보호하기 위한 모드가 인에이블되는 경우에만 수행되는 것인 마스터 전송 암호화 키 보호 방법.
- 제10항에 있어서, 상기 보호하기 위한 모드는, 상기 보호하기 위한 모드가 인에이블될 것이라는 것을 지시하는 정책 파일내의 항목이 상기 제1 컴퓨팅 장치에 다운로드될 때, 인에이블되는 것인 마스터 전송 암호화 키 보호 방법.
- 제1항, 제7항, 제8항, 제9항 중 어느 한 항에 있어서, 복호화된 형태의 적어도 하나의 마스터 전송 암호화 키의 사본을 생성하는 단계와 복호화된 형태의 상기 적어도 하나의 마스터 전송 암호화 키의 사본을 휘발성 기억 장치(volatile store)에 저장하는 단계는 상기 제1 컴퓨팅 장치가 재시작된 후에 반복되는 것인 마스터 전송 암호화 키 보호 방법.
- 제1항, 제7항, 제8항, 제9항 중 어느 한 항에 있어서, 복호화된 형태의 적어도 하나의 마스터 전송 암호화 키의 사본을 생성하는 단계와 복호화된 형태의 상기 적어도 하나의 마스터 전송 암호화 키의 사본을 휘발성 기억 장치(volatile store)에 저장하는 단계는, 상기 제1 컴퓨팅 장치가 재시작되고 잠금 해제(unlock)될 때 반복되고, 상기 제1 컴퓨팅 장치가 재시작된 후에 상기 제1 컴퓨팅 장치와 제2 컴퓨팅 장치 간의 통신은 상기 제1 컴퓨팅 장치가 잠금 해제될 때까지 방지되는 것인 마스터 전송 암호화 키 보호 방법.
- 복수의 명령어들이 저장되어 있는 컴퓨터 판독 가능한 기록 매체로서, 상기 명령어들은 컴퓨팅 장치가 청구항 제1항, 제7항, 제8항, 제9항 중 어느 한 항에 있어서의 방법의 단계들을 수행하도록 하는 것인 컴퓨터 판독 가능한 기록 매체.
- 제1 컴퓨팅 장치 상에 저장된 마스터 전송 암호화 키들을 보호하는 시스템으로서, 상기 시스템은 상기 제1 컴퓨팅 장치와 제2 컴퓨팅 장치를 포함하고, 적어도 하나의 마스터 전송 암호화 키가 상기 제1 컴퓨팅 장치와 상기 제2 컴퓨팅 장치 간의 데이터 통신의 비밀성을 보호하기 위해 사용되며, 상기 제1 컴퓨팅 장치 상에 저장될 데이터는 콘텐츠 보호키를 사용하여 암호화될 수 있으며, 상기 제1 컴퓨팅 장치상에서 수행되는 애플리케이션은 청구항 제1항, 제7항, 제8항, 제9항 중 어느 한 항의 방법의 단계들을 수행하도록 구성되어 있는 것인, 마스터 전송 암호화 키 보호 시스템.
- 제15항에 있어서, 상기 제1 컴퓨팅 장치는 모바일 장치인 마스터 전송 암호화 키 보호 시스템.
- 제15항에 있어서, 상기 비휘발성 기억 장치는 플래시 메모리인 마스터 전송 암호화 키 보호 시스템.
- 제15항에 있어서, 상기 휘발성 기억 장치는 RAM인 마스터 전송 암호화 키 보호 시스템.
- 제15항에 있어서, 상기 제2 컴퓨팅 장치는 데이터 서버인 마스터 전송 암호화 키 보호 시스템.
- 제19항에 있어서, 상기 데이터 서버는 메시지 관리 서버인 마스터 전송 암호화 키 보호 시스템.
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US72627105P | 2005-10-14 | 2005-10-14 | |
US60/726,271 | 2005-10-14 |
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KR20070070219A KR20070070219A (ko) | 2007-07-03 |
KR100902627B1 true KR100902627B1 (ko) | 2009-06-15 |
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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 |
EP1803249B1 (en) | 2010-04-07 |
US20070165844A1 (en) | 2007-07-19 |
CA2585987A1 (en) | 2007-04-19 |
DE602005020482D1 (en) | 2010-05-20 |
EP1803249A1 (en) | 2007-07-04 |
CA2585987C (en) | 2012-12-04 |
US8572389B2 (en) | 2013-10-29 |
ATE463897T1 (de) | 2010-04-15 |
CN101061662A (zh) | 2007-10-24 |
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