JPS6476261A - Illegal intrusion judgement system for information processing system - Google Patents
Illegal intrusion judgement system for information processing systemInfo
- Publication number
- JPS6476261A JPS6476261A JP62232375A JP23237587A JPS6476261A JP S6476261 A JPS6476261 A JP S6476261A JP 62232375 A JP62232375 A JP 62232375A JP 23237587 A JP23237587 A JP 23237587A JP S6476261 A JPS6476261 A JP S6476261A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- time
- signal
- connection request
- illegal intrusion
- 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.)
- Pending
Links
Abstract
PURPOSE:To judge whether a terminal executing a connection request is an illegal intrusion terminal or not by comparing a signal reciprocating time obtained by actually transmitting a signal to the terminal executing the connection request with the signal reciprocating time previously stored in a storing means. CONSTITUTION:A host computer 2, at the time of applying a user ID code from a terminal 1, retrieves the storing part 22 to obtain the signal reciprocating time corresponding to the ID code and transmit the specific signal to the terminal 1. The reflecting part 12 of the terminal part 1 immediately returns the transmitted specific signal. A time from the transmission of the specific signal to the return thereof is measured by a timer 23 in the host computer and when this time coincides with the signal reciprocating time in the storing part 22, it is judged that the terminal executing the connection request is not the terminal of the illegal intrusion. Consequently, when the coincidence of the time is within a prescribed time difference, the connection request of the terminal is permitted but it is rejected when it is above the prescribed time difference.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62232375A JPS6476261A (en) | 1987-09-18 | 1987-09-18 | Illegal intrusion judgement system for information processing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62232375A JPS6476261A (en) | 1987-09-18 | 1987-09-18 | Illegal intrusion judgement system for information processing system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6476261A true JPS6476261A (en) | 1989-03-22 |
Family
ID=16938242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62232375A Pending JPS6476261A (en) | 1987-09-18 | 1987-09-18 | Illegal intrusion judgement system for information processing system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6476261A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5684957A (en) * | 1993-03-29 | 1997-11-04 | Hitachi Software Engineering Co., Ltd. | Network management system for detecting and displaying a security hole |
US7996909B2 (en) | 2004-06-11 | 2011-08-09 | Sony Corporation | Information processing apparatus and method |
-
1987
- 1987-09-18 JP JP62232375A patent/JPS6476261A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5684957A (en) * | 1993-03-29 | 1997-11-04 | Hitachi Software Engineering Co., Ltd. | Network management system for detecting and displaying a security hole |
US7996909B2 (en) | 2004-06-11 | 2011-08-09 | Sony Corporation | Information processing apparatus and method |
US8918889B2 (en) | 2004-06-11 | 2014-12-23 | Sony Corporation | Information processing apparatus and method |
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