KR940024630A - 스마트 카드용 키 보호장치 - Google Patents

스마트 카드용 키 보호장치 Download PDF

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KR940024630A
KR940024630A KR1019940008819A KR19940008819A KR940024630A KR 940024630 A KR940024630 A KR 940024630A KR 1019940008819 A KR1019940008819 A KR 1019940008819A KR 19940008819 A KR19940008819 A KR 19940008819A KR 940024630 A KR940024630 A KR 940024630A
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key
user
smart card
data
user code
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KR970000845B1 (ko
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아자르 미쉘
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미쉘 꼴롱브
뷜 쎄뻬 8
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/10—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means together with a coded signal, e.g. in the form of personal identification information, like personal identification number [PIN] or biometric data
    • G07F7/1008—Active credit-cards provided with means to personalise their use, e.g. with PIN-introduction/comparison system
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/34—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using cards, e.g. integrated circuit [IC] cards or magnetic cards
    • G06Q20/341—Active cards, i.e. cards including their own processing means, e.g. including an IC or chip
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
    • G06Q20/409—Device specific authentication in transaction processing
    • G06Q20/4097—Device specific authentication in transaction processing using mutual authentication between devices and transaction partners
    • G06Q20/40975—Device specific authentication in transaction processing using mutual authentication between devices and transaction partners using encryption therefor
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/0806—Details of the card
    • G07F7/0813—Specific details related to card security
    • G07F7/082—Features insuring the integrity of the data on or in the card
    • 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
    • H04L9/0897—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage involving additional devices, e.g. trusted platform module [TPM], smartcard or USB
    • 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
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3234—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving additional secure or trusted devices, e.g. TPM, smartcard, USB or software token
    • 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
    • H04L2209/34—Encoding or coding, e.g. Huffman coding or error correction

Abstract

본 발명은 스마트 카드용 키 보호장치에 관한 것으로, 스마트 카드에 저장되고, 랜덤키와 사용자키를 사용해 코드화되며, 스마트 카드내의 마이크로프로세서에 의해 사용자키 코딩/디코딩 알고리즘(A.B.C.C.)이 실행되는 적어도 하나의 사용자 코드키(CCCi); 상기 스마트 카드의 메모리 영역에 상기 적어도 하나의 사용자 코드키 (CCCi) 각각과 관련되어 발생되고 저장되는 사용자 코드키 각각의 종속 데이타에 대응하는 보호 데이타; 상기 적어도 하나의 사용자 코드키(CCCi)를 사용해 발생하는 확인 데이타와 상기 보호 데이타를 비교하여 사용자로 하여금 상기 사용자 코드키(CCCi)를 확인하도록 상기 스마트 카드에 설치되는 검색 장치; 및 상기 확인 데이타가 상기 보호 데이타와 일치하지 않을 경우 사용자로 하여금 적어도 하나의 사용자 코드키(CCCi)를 이용한 더 이상의 계산을 중단케하도록 스마트 카드에 설치되는 인터록 장치; 를 특징으로 한다.

Description

스마트 카드용 키 보호장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 보호 특징을 갖는 각각의 요소들을 보여주는 개략도; 제2도는 본 명세서에서 설명되는 연산알고리즘의 흐름도; 제3도는 키를 설치하는 과정을 나타내는 도면.

Claims (18)

  1. 스마트 카드에 저장되고, 랜덤키와 사용자키를 사용해 코드화되며, 스마트 카드 내의 마이크로프로세서에 의해 사용자키 코딩/디코딩 알고리즘(A.B.C.C.)이 실행되는 적어도 하나의 사용자 코드키(CCCi); 상기 스마트 카드의 메모리 영역에 상기 적어도 하나의 사용자 코드키(CCCi) 각각과 관련되어 발생되고 저장되는 사용자 코드키 각각의 종속 데이타에 대응하는 보호 데이타; 상기 적어도 하나의 사용자 코드키(CCCi)를 사용해 발생하는 확인 데이타와 상기 보호 데이타를 비교하여 사용자로 하여금 상기 사용자 코드키(CCCi)를 확인하도록 상기 스마트 카드에 설치되는 검색 장치; 및 상기 확인 데이타가 상기 보호 데이타와 일치하지 않을 경우 사용자로 하여금 적어도 하나의 사용자 코드키(CCCi)를 이용한 더 이상의 계산을 중단케하도록 스마트 카드에 설치되는 인터록 장치; 를 포함하는 스마트 카드용 사용자키 보호 장치.
  2. 제1항에 있어서, 상기 보호 데이타가 상기 스마트 카드의 비밀 메모리 영역에 저장되는 장치.
  3. 제1항에 있어서, 상기 검색 장치가 키 교정 특성을 갖는 장치.
  4. 제2항에 있어서, 상기 적어도 하나의 사용자 코드키가 랜덤키(C.SP.Di)를 사용해 상기 사용자키코딩 알고리즘(A.S.C.C)에 의해 코드화되고, 코드식 입력키(CCU)와 다르며, 입력키 코딩/디코딩 알고리즘(A.CU.)에 의해 디코드되고, 상기 비밀 메모리 영역(ZS)에 저장되는 장치.
  5. 제2항에 있어서, 상기 보호 데이타가 검사합계인 장치.
  6. 제2항에 있어서, 상기 보호 데이타가 순회 용장도 검사(CRC)인 장치.
  7. 제2항에 있어서, 상기 보호 데이타가 제각기 일정 2진 값을 갖는 다수의 사용자 코드키(CCCi)의 비트(CBVip)인 장치.
  8. 제2항에 있어서, 상기 보호 데이타가 비밀키(CS)를 사용해 계산되는 기호(Sip)인 장치.
  9. 제1항에 있어서, 상기 검색 장치가 상기 스마트 카드내에 배치되어 상기 스마트 카드 메모리 영역과 연결된 상기 마이크로프로세서(1)에 의해 실행되는 사용자키 코딩 알고리즘(A.CA.S.C.)인 장치.
  10. 제2항에 있어서, 상기 보호 데이타가 상기 사용자 코드키(CCCi)와 관련해 저장되는 장치.
  11. 제4항에 있어서, 상기 확인 데이타가 상기 보호 데이타에 일치하지 않으면 상기 사용자키 코딩/디코딩 알고리즘(A.S.C.C.)을 이용해 상기 적어도 하나의 사용자 코드키로부터 디코드된 키가 발생하고, 상기 랜덤키(S.SP.Di.)를 사용하는 상기 사용자키 코딩/디코딩 알고리즘과 키 저장작업이 상기 메모리 영역에서 쓰이는 상기 디코드된 키를 만드는 상기 마이크로프로세서에 의해 실행되는 장치.
  12. 마이크로프로세서(1), 연산 시스템(OS)을 갖는 ROM(2), 및 적어도 하나의 키가 저장되는 적어도 하나의 비밀 영역을 갖는 스마트 카드에 있어서: 상기 적어도 하나의 비밀 영역(ZS)에 저장되고 랜덤키(C.SP.Di.)를 사용해 각각 코드화되는 적어도 하나의 사용자 코드키(CCCi); 상기 적어도 하나의 사용자 코드키 각각과 관련되어 저장되고, 사용자 코드키 각각의 계산된 종속 데이타에 대응하는 보호 데이타; 사용자로 하여금 상기 적어도 하나의 사용자 코드키(CCCi)를 이용해 발생한 확인 데이타와 상기 보호 데이타를 비교하고 사용자 코드키를 확인하도록 스마트 카드내에 설치되는 검색 장치; 확인 데이타가 보호 데이타에 일치하지 않을 경우 적어도 하나의 사용자 코드키(CCCi)를 이용한 더 이상의 계산을 차단하도록 스마트 카드내에 설치되는 인터록 장치; 를 더 포함하는 스마트 카드.
  13. 제12항에 있어서, 상기 계산된 종속 데이타가 검사합계 알고리즘을 사용하는 상기 스마트 카드 마이크로프로세서에 의해 계산되는 스마트 카드.
  14. 제12항에 있어서, 상기 계산된 종속 데이타가 순회 용장도 코드를 이용하는 상기 스마트 카드 마이크로프로세서에 의해 계산되는 스마트 카드.
  15. 판독-기록 메모리 영역, 비밀 메모리 영역을 갖는 관련 비휘발성 메모리 영역, 및 상기 판독-기록 메모리 영역과 상기 비휘발성 메모리 영역에 연결되는 마이크로프로세서를 포함하는 스마트 카드에 적어도 하나의 입력 사용자키를 저장하는 방법으로서; 상기 적어도 하나의 입력 사용자키를 수신하는 단계; 상기 마이크로프로세서를 이용해 상기 적어도 하나의 입력 사용자키가 코드화 되었는지를 결정하는 단계; 상기 적어도 하나의 입력 사용자키가 코드화되었다고 결정되면, 사용자 코딩/디코딩 알고리즘(A.CU.)과 메모리영역에 저장된 관련 사용자키(CUAI)를 이용해 상기 적어도 하나의 입력 사용자키를 디코딩하고, 비코드식 입력 사용자키를 생성하는 단계; 비휘발성 메모리 영역에 있는 소정의 키 코딩 알고리즘(A.S.C.C)과 랜덤키를 사용해 상기 비코드식 입력 사용자키를 코드화하여 사용자 코드키(CCCi)를 발생시키는 단계; 마이크로프로세서의 시험 알고리즘을 사용해 상기 사용자 코드키의 보호 데이타를 계산하는 단계; 및 상기 사용자 코드키(CCCi)와 관련 보호 데이타를 메모리의 비밀 영역에 저장하는 단계; 로 구성되는 방법.
  16. 제15항에 있어서, 상기 시험 알고리즘이 스마트 카드의 비휘발성 메모리에 저장된 검사합계 계산 알고리즘인 방법.
  17. 제15항에 있어서, 상기 시험 알고리즘이 스마트 카드의 비휘발성 메모리에 저장된 순회 용장도 코드인 방법.
  18. 제15항에 있어서, 상기 사용자 코드키를 이용한 계산을 하기 전에 마이크로프로세서에서 상기 사용자 코드키의 상기 시험 알고리즘을 이용해 확인 데이타를 계산하는 단계; 상기 확인 데이타와 상기 보호 데이타를 비교하여 상기 사용자 코드키의 완전성을 확인하는 단계; 및 상기 확인 데이타가 상기 보호 데이타와 같지 않을 경우 상기 사용자 코드키의 사용을 차단하는 단계; 를 더 포함하는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940008819A 1993-04-22 1994-04-22 스마트 카드용 키보호 장치 KR970000845B1 (ko)

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Application Number Priority Date Filing Date Title
FR93-04773 1993-04-22
FR9304773A FR2704341B1 (fr) 1993-04-22 1993-04-22 Dispositif de protection des clés d'une carte à puce.

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KR940024630A true KR940024630A (ko) 1994-11-18
KR970000845B1 KR970000845B1 (ko) 1997-01-20

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US (1) US5533126A (ko)
EP (1) EP0621569B1 (ko)
JP (1) JP2710754B2 (ko)
KR (1) KR970000845B1 (ko)
CN (1) CN1035085C (ko)
AT (1) ATE182226T1 (ko)
AU (1) AU673900B2 (ko)
CA (1) CA2121410C (ko)
DE (1) DE69419450T2 (ko)
DK (1) DK0621569T3 (ko)
ES (1) ES2135547T3 (ko)
FR (1) FR2704341B1 (ko)
NO (1) NO307944B1 (ko)
SG (1) SG55091A1 (ko)
TW (1) TW359780B (ko)

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CA2121410A1 (fr) 1994-10-23
DE69419450D1 (de) 1999-08-19
DK0621569T3 (da) 1999-11-29
TW359780B (en) 1999-06-01
US5533126A (en) 1996-07-02
SG55091A1 (en) 1998-12-21
EP0621569A1 (fr) 1994-10-26
AU673900B2 (en) 1996-11-28
ES2135547T3 (es) 1999-11-01
NO307944B1 (no) 2000-06-19
KR970000845B1 (ko) 1997-01-20
CA2121410C (fr) 1999-01-19
JPH0713873A (ja) 1995-01-17
NO941460L (no) 1994-10-24
JP2710754B2 (ja) 1998-02-10
EP0621569B1 (fr) 1999-07-14
CN1035085C (zh) 1997-06-04
DE69419450T2 (de) 1999-10-28
FR2704341A1 (fr) 1994-10-28
AU6057994A (en) 1994-11-03
FR2704341B1 (fr) 1995-06-02
ATE182226T1 (de) 1999-07-15
CN1100219A (zh) 1995-03-15
NO941460D0 (no) 1994-04-21

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