JPS58109953A - フロツピイデイスク・ボリユ−ムの機密保護処理方式 - Google Patents

フロツピイデイスク・ボリユ−ムの機密保護処理方式

Info

Publication number
JPS58109953A
JPS58109953A JP56208355A JP20835581A JPS58109953A JP S58109953 A JPS58109953 A JP S58109953A JP 56208355 A JP56208355 A JP 56208355A JP 20835581 A JP20835581 A JP 20835581A JP S58109953 A JPS58109953 A JP S58109953A
Authority
JP
Japan
Prior art keywords
index
area
floppy disk
volume
processing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP56208355A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6122811B2 (OSRAM
Inventor
Nobuaki Iwaki
岩城　宣明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP56208355A priority Critical patent/JPS58109953A/ja
Publication of JPS58109953A publication Critical patent/JPS58109953A/ja
Publication of JPS6122811B2 publication Critical patent/JPS6122811B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
JP56208355A 1981-12-23 1981-12-23 フロツピイデイスク・ボリユ−ムの機密保護処理方式 Granted JPS58109953A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56208355A JPS58109953A (ja) 1981-12-23 1981-12-23 フロツピイデイスク・ボリユ−ムの機密保護処理方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56208355A JPS58109953A (ja) 1981-12-23 1981-12-23 フロツピイデイスク・ボリユ−ムの機密保護処理方式

Publications (2)

Publication Number Publication Date
JPS58109953A true JPS58109953A (ja) 1983-06-30
JPS6122811B2 JPS6122811B2 (OSRAM) 1986-06-03

Family

ID=16554911

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56208355A Granted JPS58109953A (ja) 1981-12-23 1981-12-23 フロツピイデイスク・ボリユ−ムの機密保護処理方式

Country Status (1)

Country Link
JP (1) JPS58109953A (OSRAM)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990004825A1 (fr) * 1988-10-26 1990-05-03 Hitachi Maxell Ltd. Procede et dispositif de commande d'un support d'enregistrement et support d'enregistrement produit sous la commande dudit dispositif
JPH036639A (ja) * 1989-06-02 1991-01-14 Hitachi Ltd ファイル管理方法
WO1992009946A1 (fr) * 1990-11-29 1992-06-11 Seiko Epson Corporation Systeme de securite
JP2008520017A (ja) * 2004-11-15 2008-06-12 トムソン ライセンシング 携帯型メモリ・デバイスに記憶された私的コンテンツを保護するための方法および携帯型メモリ・デバイス

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990004825A1 (fr) * 1988-10-26 1990-05-03 Hitachi Maxell Ltd. Procede et dispositif de commande d'un support d'enregistrement et support d'enregistrement produit sous la commande dudit dispositif
JPH036639A (ja) * 1989-06-02 1991-01-14 Hitachi Ltd ファイル管理方法
WO1992009946A1 (fr) * 1990-11-29 1992-06-11 Seiko Epson Corporation Systeme de securite
JP2008520017A (ja) * 2004-11-15 2008-06-12 トムソン ライセンシング 携帯型メモリ・デバイスに記憶された私的コンテンツを保護するための方法および携帯型メモリ・デバイス

Also Published As

Publication number Publication date
JPS6122811B2 (OSRAM) 1986-06-03

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