Title:
SOFTWARE PROTECTOR
Document Type and Number:
Japanese Patent JPS61175729
Kind Code:
A
Abstract:
A security system is provided which provides security to selected software to prevent such software from being executed on an unauthorized computer system. The security system includes active electronic circuitry mounted within the connecting end of a standard computer cable and adapted for receiving a first predetermined information pattern from the host computer and for transmitting a second predetermined information pattern back to the host computer in response thereto. The second predetermined information pattern is compared to a validation pattern within the memory of the host computer and if a match occurs, execution of the software continues. If a match does not occur, execution of the software to be protected is terminated. The security system requires no modification of the hardware of the host computer and is user transparent.
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Inventors:
TERII ERU DOORUHOFU
BURAIAN EFU BAATON
UIRIAMU JIEI GEEN
FUIRITSUPU ERU BUAN DAIKU
HARORUDO AARU HANSEN JIYUNIA
BURAIAN EFU BAATON
UIRIAMU JIEI GEEN
FUIRITSUPU ERU BUAN DAIKU
HARORUDO AARU HANSEN JIYUNIA
Application Number:
JP25842585A
Publication Date:
August 07, 1986
Filing Date:
November 18, 1985
Export Citation:
Assignee:
SCHLUMBERGER TECHNOL CORP
International Classes:
G06F11/00; G06F1/00; G06F21/00; G06F21/10; G06F21/12; (IPC1-7): G06F9/06; G06F11/00; G06F15/00
Attorney, Agent or Firm:
Minoru Nakamura