WO1993019413A3 - Hardware write protection circuitry for external mass storages of personal computers (pc) - Google Patents
Hardware write protection circuitry for external mass storages of personal computers (pc) Download PDFInfo
- Publication number
- WO1993019413A3 WO1993019413A3 PCT/DE1993/000092 DE9300092W WO9319413A3 WO 1993019413 A3 WO1993019413 A3 WO 1993019413A3 DE 9300092 W DE9300092 W DE 9300092W WO 9319413 A3 WO9319413 A3 WO 9319413A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- standard
- write protection
- system bus
- insert card
- personal computers
- Prior art date
Links
Classifications
-
- 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
- G06F21/80—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 storage media based on magnetic or optical technology, e.g. disks with sectors
-
- 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
- G06F21/50—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
- G06F21/55—Detecting local intrusion or implementing counter-measures
- G06F21/56—Computer malware detection or handling, e.g. anti-virus arrangements
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
- G06F2211/007—Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
Abstract
A hardware write protection for external mass storages of personal computers (PC) aims at preventing accidental modification of data and programmes by destructive software (for example computer viruses) or by an incorrect operation of the computer. For that purpose, the circuitry has an insert card (12) of a standard PC format that can be inserted onto the PC system bus and a medium high mass storage controller card (13). On the insert card (12) of a standard PC format are arranged an intelligent sector write protection system (1 - 11) and a standard PC system bus insert card strip (14). The medium high mass storage controller card (3) is inserted into the standard PC system bus insert card strip (14). All lines of the PC system bus on the insert card (12) of standard PC format are directly connected to the input of the intelligent sector write protection system (1 - 11) and all lines of the PC system bus, with the exception of the IOW line, are directly connected to the standard PC system insert card strip (14). The IOW line is connected to the standard PC system bus insert card strip (14) by means of the intelligent sector write protection system (1 - 11).
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9203602U DE9203602U1 (en) | 1992-03-17 | 1992-03-17 | |
DEG9203602.3U | 1992-03-17 | ||
DEP4210163.8 | 1992-03-25 | ||
DE19924210163 DE4210163C1 (en) | 1992-03-25 | 1992-03-25 | Hardware protector for external mass data memory or disc used by personal computer - comprises plug-in card and raised data control card, with connector strip along one edge |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1993019413A2 WO1993019413A2 (en) | 1993-09-30 |
WO1993019413A3 true WO1993019413A3 (en) | 1994-03-31 |
Family
ID=25913312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1993/000092 WO1993019413A2 (en) | 1992-03-17 | 1993-02-04 | Hardware write protection circuitry for external mass storages of personal computers (pc) |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU4036093A (en) |
WO (1) | WO1993019413A2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2713796B1 (en) * | 1993-12-10 | 1996-03-01 | Metavideotex Sa | Method for protecting a group of computer workstations and device for implementing it. |
JP4476021B2 (en) * | 2004-05-24 | 2010-06-09 | 株式会社日立製作所 | Disk array system |
EP2143031A1 (en) | 2007-05-09 | 2010-01-13 | International Business Machines Corporation IBM | A method and data processing system to prevent manipulation of computer systems |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0276450A1 (en) * | 1987-01-23 | 1988-08-03 | Xmit Ag | Data protection circuit to inhibit the transmission of signals on a bus |
GB2222899A (en) * | 1988-08-31 | 1990-03-21 | Anthony Morris Rose | Computer mass storage data protection |
US5012514A (en) * | 1990-06-26 | 1991-04-30 | Paul Renton | Hard drive security system |
EP0449154A2 (en) * | 1990-03-24 | 1991-10-02 | Autonom Computer Vertriebsgesellschaft Mbh | Computer control system |
-
1993
- 1993-02-04 AU AU40360/93A patent/AU4036093A/en not_active Abandoned
- 1993-02-04 WO PCT/DE1993/000092 patent/WO1993019413A2/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0276450A1 (en) * | 1987-01-23 | 1988-08-03 | Xmit Ag | Data protection circuit to inhibit the transmission of signals on a bus |
GB2222899A (en) * | 1988-08-31 | 1990-03-21 | Anthony Morris Rose | Computer mass storage data protection |
EP0449154A2 (en) * | 1990-03-24 | 1991-10-02 | Autonom Computer Vertriebsgesellschaft Mbh | Computer control system |
US5012514A (en) * | 1990-06-26 | 1991-04-30 | Paul Renton | Hard drive security system |
Also Published As
Publication number | Publication date |
---|---|
AU4036093A (en) | 1993-10-21 |
WO1993019413A2 (en) | 1993-09-30 |
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