KR940020228A - 데이타 기억장치 - Google Patents

데이타 기억장치 Download PDF

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Publication number
KR940020228A
KR940020228A KR1019940002090A KR19940002090A KR940020228A KR 940020228 A KR940020228 A KR 940020228A KR 1019940002090 A KR1019940002090 A KR 1019940002090A KR 19940002090 A KR19940002090 A KR 19940002090A KR 940020228 A KR940020228 A KR 940020228A
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KR
South Korea
Prior art keywords
data storage
storage device
access
data
area
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KR1019940002090A
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English (en)
Inventor
준야 템파쿠
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김광호
삼성전자 주식회사
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Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Publication of KR940020228A publication Critical patent/KR940020228A/ko

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/14—Protection against unauthorised use of memory or access to memory
    • G06F12/1458—Protection against unauthorised use of memory or access to memory by checking the subject access rights
    • G06F12/1466—Key-lock mechanism
    • 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
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
    • G06F21/79—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in semiconductor storage media, e.g. directly-addressable memories
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/12—Replacement control
    • G06F12/121—Replacement control using replacement algorithms
    • 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
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C16/00—Erasable programmable read-only memories
    • G11C16/02—Erasable programmable read-only memories electrically programmable
    • G11C16/06—Auxiliary circuits, e.g. for writing into memory
    • G11C16/22—Safety or protection circuits preventing unauthorised or accidental access to memory cells

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • Storage Device Security (AREA)
  • Read Only Memory (AREA)

Abstract

본 발명은 데이터 가억장치에 관한 것으로, 기억된 정보를 확실히 보호하는 것이 가능한 데이터 기억장치를 제공하기 위하여, 외부의 장치(200)으로부터의 액세스에 응답하여 기억된 데이터를 독출하는 데이터 기억장치에 있어서, 패스워드정보를 서입하기 위한 패스워드 기억영역(10)과, 상기 외부장치로부터 입력된 패스워드와 상기 패스워드 기억영역으로부터 독출된 패스워드를 비교하는 비교회로(12)를 가지며, 비교가 일치하는 경우에 지정된 데이터를 상기 외부장치가 독취하는 것을 허가한다.

Description

데이터 기억장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 실시예의 데이터기억장치(100)의 기본적 회로구성을 나타내는 도면.

Claims (5)

  1. 저장된 데이터에 대한 허가되지 않은 액세스를 방지하는 기능을 가지는 데이터 기억장치에 있어서, 다수개의 내부패스워드들을 저장하기 위한 제1영역과 상기 제1영역상에 내부패스워드들의 위치를 나타내는 어드레스데이타를 저장하는 제2영역을 가지는 메모리수단과, 외부장치로부터 입력되는 액세스요구신호에 응답하여 상기 메모리의 제2영역에 저장된 어드레스데이타에 따라 상기 메모리의 제1영역으로부터 내부패스워드들을 독출하기 위한 제어회로와, 상기 제어회로와 연결되며 상기 기억매체의 제1영역으로부터 독출된 내부패스워드들과 상기 외부장치로부터 수신한 외부패스워드들을 비교하여 내부패스워드들과 외부패스워드들 각각이 서로 일치하는지를 나타내는 비교출력신호를 발생하는 비교회로와, 상기 비교출력신호에 응답하여 상기 외부장치가 상기 데이터기억장치에 저장된 데이터를 액세스하는 것을 허용하는 제1논리레벨과 액세스하는 것을 거부하는 제2논리레벨을 가지는 액세스허용신호를 발생하는 액세스허용신호발생회로를 구비함을 특징으로 하는 데이타기억장치.
  2. 제1항에 있어서, 상기 어드레스데이타는 부호화되며, 상기 제어회로는 상기 어드레스데이타를 디코딩하여 상기 메모리수단의 제1영역에 있는 내부패스워드의 실제적인 어드레스를 생성하기 위한 어드레스신호 발생회로를 포함함을 특징으로 하는 데이타기억장치.
  3. 제1항에 있어서, 상기 메모리수단이 플래시 아이피롬임을 특징으로 하는 데이타기억장치.
  4. 제1항 또는 제2항에 있어서, 상기 메모리수단의 제1영역이 제1메모리장치이고 제2영역이 제2메모리장치임을 특징으로 하는 데이타기억장치.
  5. 제1항에 있어서, 상기 액세스허용신호발생회로가, 상기 내부패스워드와 외부패스워드가 서로 일치하는 비교출력신호가 입력될 때에는 상기 데이터기억장치에 저장된 데이터를 액세스하는 것을 허용하는 제1논리레벨의 액세스허용신호를 출력하고, 상기 내부패스워드와 외부패스워드가 서로 불일치하는 비교출력신호가 입력될 때에는 상기 데이터기억장치에 저장된 데이터를 액세스하는 것을 거부하는 제2논리레벨의 액세스허용신호를 출력함을 특징으로 하는 데이타기억장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940002090A 1993-02-08 1994-02-04 데이타 기억장치 KR940020228A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP93-20155 1993-02-08
JP2015593A JPH06236325A (ja) 1993-02-08 1993-02-08 データ記憶装置

Publications (1)

Publication Number Publication Date
KR940020228A true KR940020228A (ko) 1994-09-15

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US (1) US5469564A (ko)
JP (1) JPH06236325A (ko)
KR (1) KR940020228A (ko)

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