JPS644138A - Security system in data communication - Google Patents
Security system in data communicationInfo
- Publication number
- JPS644138A JPS644138A JP62159189A JP15918987A JPS644138A JP S644138 A JPS644138 A JP S644138A JP 62159189 A JP62159189 A JP 62159189A JP 15918987 A JP15918987 A JP 15918987A JP S644138 A JPS644138 A JP S644138A
- Authority
- JP
- Japan
- Prior art keywords
- modem
- transmission request
- terminal station
- station
- terminal
- 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
Links
Abstract
PURPOSE:To prevent the occurrence of damage caused by pirating ID, by collating both user ID and MODEM ID. CONSTITUTION:In completing line connection in a public telephone network 3 by an automatic reply of a center station with respect to a call from a terminal station, a center station side MODEM 4 gives a transmission request of a MODEM ID to a terminal station from an ID transmission request circuit 44. A MODEM 2 receiving the transmission request gives a MODEM ID transmission request to a terminal equipment 1. Thus, the terminal equipment 1 inputs a MODEM ID given in advance to a MODEM 2. The MODEM 2 compares and collates it with a MODEM ID stored in advance and sends a MODEM ID when they are coincident. A data base 5 receiving it collates whether the MODEM ID is a MODEM ID of a terminal station having an access right, sends an affirmative reply to the terminal station when the presence of access right is decided and the next user ID is collated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62159189A JPH0691531B2 (en) | 1987-06-26 | 1987-06-26 | Security method in data communication |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62159189A JPH0691531B2 (en) | 1987-06-26 | 1987-06-26 | Security method in data communication |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS644138A true JPS644138A (en) | 1989-01-09 |
JPH0691531B2 JPH0691531B2 (en) | 1994-11-14 |
Family
ID=15688257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62159189A Expired - Lifetime JPH0691531B2 (en) | 1987-06-26 | 1987-06-26 | Security method in data communication |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0691531B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009059036A (en) * | 2007-08-30 | 2009-03-19 | Nec Infrontia Corp | Data communication system, data communication control method, and modem device |
-
1987
- 1987-06-26 JP JP62159189A patent/JPH0691531B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009059036A (en) * | 2007-08-30 | 2009-03-19 | Nec Infrontia Corp | Data communication system, data communication control method, and modem device |
Also Published As
Publication number | Publication date |
---|---|
JPH0691531B2 (en) | 1994-11-14 |
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