KR20030068395A - 디지털 전송 시스템에서 전송된 데이터의 인증 - Google Patents
디지털 전송 시스템에서 전송된 데이터의 인증 Download PDFInfo
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- KR20030068395A KR20030068395A KR1020027013228A KR20027013228A KR20030068395A KR 20030068395 A KR20030068395 A KR 20030068395A KR 1020027013228 A KR1020027013228 A KR 1020027013228A KR 20027013228 A KR20027013228 A KR 20027013228A KR 20030068395 A KR20030068395 A KR 20030068395A
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
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Abstract
Description
Claims (53)
- 디지털 전송 시스템에서 전송된 데이터를 인증하는 방법으로서,전송하기 전에,상기 데이터의 적어도 일부에 대한 적어도 2개의 암호화된 값을 결정하는 단계; 및상기 적어도 2개의 암호화된 값을 상기 데이터으로 출력하는 단계를 포함하고,상기 데이터에 대한 각 암호화된 값은 개개의 암호화 알고리즘의 키를 사용하여 결정되는 것을 특징으로 하는 방법.
- 제 1항에 있어서, 상기 데이터는 키를 포함하는 것을 특징으로 하는 방법.
- 제 2항에 있어서, 상기 데이터는 데이터를 처리하기 위한 암호화 알고리즘의 공개키를 포함하는 적어도 하나의 디지털 인증서를 포함하는 것을 특징으로 하는 방법.
- 제 3항에 있어서, 상기 데이터는 데이터를 처리하기 위한 암호화 알고리즘의 공개키를 포함하는 적어도 하나의 디지털 루트 인증서를 포함하는 것을 특징으로 하는 방법.
- 제 3 또는 4항에 있어서, 상기 적어도 하나의 디지털 인증서는 그 인증서에 포함된 공개키의 암호화 알고리즘의 개인키를 사용하여 계산된 디지털 서명을 포함하는 것을 특징으로 하는 방법.
- 상기 청구항중 어느 한 항에 있어서, 상기 데이터는 폐기된 공개키의 식별자를 포함하는 것을 특징으로 하는 방법.
- 제 6항에 있어서, 상기 식별자는 상기 폐기된 공개키를 포함하는 디지털 인증서의 식별자를 포함하는 것을 특징으로 하는 방법.
- 제 7항에 있어서, 상기 식별자는 상기 폐기된 공개키를 포함하는 디지털 루트 인정서의 식별자를 포함하는 것을 특징으로 하는 방법.
- 제 6 내지 8항중 어느 한 항에 있어서, 상기 데이터는 상기 복수의 식별자를 포함하고, 각 식별자는 개개의 폐기된 공개키를 확인하는 것을 특징으로 하는 방법.
- 상기 청구항중 어느 한 항에 있어서, 각 알고리즘은 비대칭형인 것을 특징으로 하는 방법.
- 상기 청구항중 어느 한 항에 있어서, 각 암호화된 값은 개개의 암호화 알고리즘의 개인키를 사용하여 계산된 디지털 서명에 해당되고, 각 서명은 상기 암호화 알고리즘의 공개키를 사용하여 처리 가능한 것을 특징으로 하는 방법.
- 제 11항에 있어서, 그 서명을 처리하는데 사용될 공개키의 식별자를 각 서명으로 출력하는 단계를 포함하는 것을 특징으로 하는 방법.
- 상기 청구항중 어느 한 항에 있어서, 상기 데이터와 암호화된 값은 리시버/디코더로 전송하기 위한 출력인 것을 특징으로 하는 방법.
- 상기 청구항중 어느 한 항에 있어서, 상기 데이터와 암호화된 값은 리시버/디코더에 의해 수신되고, 각 암호화된 값은 상기 개개의 암호화 알고리즘의 키를 사용하여 처리되며, 각 후속 결과 값이 상기 데이터의 적어도 일부를 인증하기 위해 상기 데이터의 적어도 일부와 비교되는 것을 특징으로 하는 방법.
- 디지털 전송 시스템에서 전송된 데이터를 인증하는 방법으로서,상기 데이터와, 상기 데이터의 적어도 일부에 대한 적어도 2개의 암호화된 값을 수신하는 단계;복수의 키를 저장하는 단계;개개의 암호화 알고리즘의 저장된 키를 사용하여 각 암호화된 값을 처리하는 단계; 및상기 데이터의 적어도 일부를 인증하기 위해, 각 후속 결과값과 상기 데이터의 적어도 일부를 비교하는 단계를 포함하고,각 암호화된 값은 상기 개개의 암호화 알고리즘을 사용하여 결정되는 것을 특징으로 하는 방법.
- 제 14 또는 15항에 있어서, 상기 후속 결과 값중 적어도 하나가 상기 데이터의 적어도 일부와 다르면, 상기 수신된 데이터는 거절되는 것을 특징으로 하는 방법.
- 상기 청구항중 어느 한 항에 있어서, 상기 데이터와 적어도 2개의 암호화된 값은 데이터 파일에 구성되는 것을 특징으로 하는 방법.
- 제 17항에 있어서, 상기 데이터 파일은 상기 후속 생성된 데이터 파일에 상기 데이터로 저장될 암호화된 값의 최소 번호의 표시를 포함하는 것을 특징으로 하는 방법.
- 제 18항에 있어서, 상기 데이터 파일은 리시버/디코더에 의해 수신되고, 상기 데이터 파일에 저장된 암호화된 값의 번호는 상기 최소 번호와 비교되며, 상기데이터 파일은 상기 데이터 파일에 저장된 암호화된 값의 번호가 상기 최소 번호보다 작으면 거절되는 것을 특징으로 하는 방법.
- 제 17 내지 19항중 어느 한 항에 있어서, 상기 데이터 파일은 데이터 모듈로 출력되는 것을 특징으로 하는 방법.
- 제 20항에 있어서, 상기 모듈에 있는 상기 데이터의 적어도 일부에 대한 모듈 암호화된 값은 송신기 암호화 알고리즘의 키를 사용하여 계산되어 상기 데이터 모듈로 출력되는 것을 특징으로 하는 방법.
- 제 21항에 있어서, 상기 데이터 모듈은 리시버/디코더에 의해 수신되고, 상기 모듈 암호화된 값은 송신기 암호화 알고리즘의 키를 사용하여 처리되며, 상기 후속 결과 값은 상기 모듈내에 있는 상기 데이터의 적어도 일부를 인증하기 위해 상기 모듈내에 있는 상기 데이터의 적어도 일부와 비교되는 것을 특징으로 하는 방법.
- 제 20 내지 22항중 어느 한 항에 있어서, 상기 모듈내에 있는 상기 데이터의 적어도 일부에 대한 상기 암호화된 값은 송신기 암호화 알고리즘의 개인키를 사용하여 계산되고, 상기 송신기 암호화 알고리즘의 공개키를 사용하여 처리 가능한 디지털 서명에 해당되는 것을 특징으로 하는 방법.
- 상기 청구항중 어느 한 항에 있어서, 상기 디지털 전송 시스템은 디지털 방송 시스템인 것을 특징으로 하는 방법.
- 디지털 전송 시스템에서 전송될 데이터를 인증하는 장치로서,상기 데이터의 적어도 일부에 대한 적어도 2개의 암호화된 값을 결정하기 위한 수단; 및상기 적어도 2개의 암호화된 값을 상기 데이터로 출력하기 위한 수단을 포함하고,상기 데이터에 대한 각 암호화된 값은 개개의 암호화 알고리즘의 키를 이용하여 결정되는 것을 특징으로 하는 장치.
- 제 25항에 있어서, 상기 데이터는 키를 포함하는 것을 특징으로 하는 장치.
- 제 26항에 있어서, 상기 데이터는 데이터를 처리하기 위한 암호화 알고리즘의 공개키를 포함하는 적어도 하나의 디지털 인증서를 포함하는 것을 특징으로 하는 장치.
- 제 27항에 있어서, 상기 데이터는 데이터를 처리하기 위한 암호화 알고리즘의 공개키를 포함하는 디지털 루트 인증서를 포함하는 것을 특징으로 하는 장치.
- 제 27 또는 28항에 있어서, 상기 적어도 하나의 디지털 인증서는 그 인증서에 포함된 상기 공개키의 암호화 알고리즘의 개인키를 사용하여 계산된 디지털 서명을 포함하는 것을 특징으로 하는 장치.
- 제 25 내지 29항중 어느 한 항에 있어서, 상기 데이터는 폐기된 공개키의 식별자를 포함하는 것을 특징으로 하는 장치.
- 제 30항에 있어서, 상기 식별자는 상기 폐기된 공개키를 포함하는 디지털 인증서의 식별자를 포함하는 것을 특징으로 하는 장치.
- 제 31항에 있어서, 상기 식별자는 상기 폐기된 공개키를 포함하는 디지털 루트 인증서의 식별자를 포함하는 것을 특징으로 하는 장치.
- 제 30 내지 32항중 어느 한 항에 있어서, 상기 데이터는 상기 복수의 식별자를 포함하고, 각 식별자는 개개의 폐기된 공개키를 확인하는 것을 특징으로 하는 장치.
- 제 25 내지 33항중 어느 한 항에 있어서, 각 알고리즘은 비대칭형인 것을 특징으로 하는 장치.
- 제 34항에 있어서, 각 암호화된 값은 개개의 암호화 알고리즘의 개인키를 사용하여 계산된 디지털 서명에 해당되고, 각 서명은 상기 암호화 알고리즘의 공개키를 사용하여 처리 가능한 것을 특징으로 하는 장치.
- 제 35항에 있어서, 상기 출력 수단은 그 서명을 처리하는데 사용될 공개키의 식별자를 각 서명으로 출력하는 것을 특징으로 하는 장치.
- 제 25 내지 36항중 어느 한 항에 있어서, 데이터 파일내에 있는 상기 데이터와 상기 적어도 2개의 암호화된 값을 구성하기 위한 수단을 포함하는 것을 특징으로 하는 장치.
- 제 37항에 있어서, 상기 데이터 파일은 상기 후속 생성된 데이터 파일에 상기 데이터로 출력될 암호화된 값의 최소 번호의 표시를 포함하는 것을 특징으로 하는 장치.
- 디지털 전송 시스템에서 전송된 데이터를 인증하는 시스템으로서,제 25 내지 38항중 어느 하나에 따른 장치를 포함하는 시스템.
- 제 39항에 있어서,상기 데이터와 암호화된 값을 수신하기 위한 수단;상기 개개의 암호화 알고리즘의 키를 사용하여 각 암호화된 값을 처리하기 위한 수단; 및상기 데이터의 적어도 일부를 인증하기 위해, 각 후속 결과 값과 상기 데이터의 적어도 일부를 비교하기 위한 수단을 포함하는 리시버/디코더를 더 포함하는 것을 특징으로 하는 시스템.
- 리시버/디코더로서,데이터와, 상기 데이터의 적어도 일부에 대해 결정된 적어도 2개의 암호화된 값을 포함하는 데이터 파일을 수신하기 위한 수단;복수의 키를 저장하기 위한 수단;상기 개개의 암호화 알고리즘의 저장된 키를 사용하여 각 암호화된 값을 처리하기 위한 수단; 및상기 데이터의 적어도 일부를 인증하기 위해, 각 후속 결과 값과 상기 데이터의 적어도 일부를 비교하기 위한 수단을 포함하고,각 암호화된 값은 개개의 암호화 알고리즘의 키를 사용하여 결정되는 것을 특징으로 하는 리시버/디코더.
- 제 41항에 있어서, 상기 후속 결과 값중 적어도 하나가 상기 데이터의 적어도 일부와 다르면, 상기 데이터를 거절하기 위한 수단을 포함하는 것을 특징으로하는 리시버/디코더.
- 제 41 또는 42항에 있어서, 각 암호화된 값은 개개의 암호화 알고리즘의 개인키를 사용하여 계산된 디지털 서명에 해당되고, 상기 처리 수단은 상기 암호화 알고리즘의 저장된 공개키를 사용하여 각 서명을 처리하는 것을 특징으로 하는 리시버/디코더.
- 제 43항에 있어서, 각 저장된 공개키는 상기 저장 수단에 저장된 개개의 디지털 인증서에 포함되는 것을 특징으로 하는 리시버/디코더.
- 제 44항에 있어서, 상기 처리 수단은 그 서명 값으로 전송된 식별자에 의해 확인되는 저장된 디지털 인증서에 포함된 공개키를 사용하여 각 서명값을 처리하는 것을 특징으로 하는 리시버/디코더.
- 제 41 내지 45항중 어느 한 항에 있어서, 상기 데이터내에 포함된 그 저장된 키의 식별자에 따른 저장된 키를 폐기하기 위한 수단을 포함하는 것을 특징으로 하는 리시버/디코더.
- 디지털 전송 시스템에서 전송된 데이터를 인증하기 위한 시스템으로서,제 25 내지 38항중 어느 한 항에 따른 장치와, 제 41 내지 46항중 어느 한항에 따른 리시버/디코더를 포함하는 시스템.
- 데이터와, 상기 데이터의 적어도 일부에 대해 결정된 적어도 2개의 암호화된 값을 포함하고, 상기 데이터에 대한 각 암호화된 값은 개개의 암호화 알고리즘의 키를 사용하여 결정되는 신호.
- 첨부 도면에 도시되고 이를 참고하여 본 명세서에서 기재된 바와 같은 방법.
- 첨부 도면에 도시되고 이를 참고하여 본 명세서에서 기재된 바와 같은 장치.
- 첨부 도면에 도시되고 이를 참고하여 본 명세서에서 기재된 바와 같은 리시버/디코더.
- 본 명세서에서 기재된 바와 같은 데이터를 인증하는 시스템.
- 첨부 도면에 도시되고 이를 참고하여 본 명세서에서 기재된 바와 같은 신호.
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PCT/IB2001/000103 WO2001076135A1 (en) | 2000-04-03 | 2001-01-11 | Authentication of data transmitted in a digital transmission system |
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CN (5) | CN1897527B (ko) |
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KR100923858B1 (ko) * | 2007-12-04 | 2009-10-28 | 한국전자통신연구원 | 케이블 네트워크 시스템 및 케이블 네트워크 동적멀티캐스트 세션에서의 보안 제어 방법 |
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