JPS5763952A - Secrecy protection system - Google Patents

Secrecy protection system

Info

Publication number
JPS5763952A
JPS5763952A JP55139679A JP13967980A JPS5763952A JP S5763952 A JPS5763952 A JP S5763952A JP 55139679 A JP55139679 A JP 55139679A JP 13967980 A JP13967980 A JP 13967980A JP S5763952 A JPS5763952 A JP S5763952A
Authority
JP
Japan
Prior art keywords
terminal equipment
data processor
subscriber
register
protection system
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
JP55139679A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6243628B2 (enExample
Inventor
Tomio Sumikura
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP55139679A priority Critical patent/JPS5763952A/ja
Publication of JPS5763952A publication Critical patent/JPS5763952A/ja
Publication of JPS6243628B2 publication Critical patent/JPS6243628B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/22—Arrangements for preventing the taking of data from a data transmission channel without authorisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
JP55139679A 1980-10-06 1980-10-06 Secrecy protection system Granted JPS5763952A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55139679A JPS5763952A (en) 1980-10-06 1980-10-06 Secrecy protection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55139679A JPS5763952A (en) 1980-10-06 1980-10-06 Secrecy protection system

Publications (2)

Publication Number Publication Date
JPS5763952A true JPS5763952A (en) 1982-04-17
JPS6243628B2 JPS6243628B2 (enExample) 1987-09-16

Family

ID=15250892

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55139679A Granted JPS5763952A (en) 1980-10-06 1980-10-06 Secrecy protection system

Country Status (1)

Country Link
JP (1) JPS5763952A (enExample)

Also Published As

Publication number Publication date
JPS6243628B2 (enExample) 1987-09-16

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