JPS6462043A - Bus security system - Google Patents

Bus security system

Info

Publication number
JPS6462043A
JPS6462043A JP62218462A JP21846287A JPS6462043A JP S6462043 A JPS6462043 A JP S6462043A JP 62218462 A JP62218462 A JP 62218462A JP 21846287 A JP21846287 A JP 21846287A JP S6462043 A JPS6462043 A JP S6462043A
Authority
JP
Japan
Prior art keywords
bus
address
processing unit
cryptographic code
transfer
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
Application number
JP62218462A
Other languages
Japanese (ja)
Inventor
Masao Hasegawa
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
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 filed Critical NEC Corp
Priority to JP62218462A priority Critical patent/JPS6462043A/en
Publication of JPS6462043A publication Critical patent/JPS6462043A/en
Pending legal-status Critical Current

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  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To guarantee surely security in a short time by using a processor allowed to connect to a bus so as to add a cryptographic code to a part of the address, comparing the cryptographic code noticed to the response processing unit in advance with the cryptographic code in the address, discriminating whether or not the transfer is effective. CONSTITUTION:The titled system consists of a bus 20, processing units 21-0-21-n, and a master processing unit 22. Then a single or plural kinds of cryptographic codes are added to part of the address in the unit of job execution such as process or task by the processing unit allowed to be connected to the bus 20, the cryptographic code in the address is compared with the cryptographic code noticed to the response processing unit in advance in preceding over the transfer so as to discriminate whether or not the transfer is effective is discriminated. Thus, the security guarantee on the bus 20 is applied surely in a short time.
JP62218462A 1987-09-01 1987-09-01 Bus security system Pending JPS6462043A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62218462A JPS6462043A (en) 1987-09-01 1987-09-01 Bus security system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62218462A JPS6462043A (en) 1987-09-01 1987-09-01 Bus security system

Publications (1)

Publication Number Publication Date
JPS6462043A true JPS6462043A (en) 1989-03-08

Family

ID=16720282

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62218462A Pending JPS6462043A (en) 1987-09-01 1987-09-01 Bus security system

Country Status (1)

Country Link
JP (1) JPS6462043A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7747016B2 (en) 1998-04-01 2010-06-29 Panasonic Corporation Data transmitting/receiving method, data transmission apparatus, data reception apparatus, data transmission/reception system, AV contents transmitting method, AV contents receiving method, AV contents transmission apparatus, AV contents reception apparatus, and program recording medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7747016B2 (en) 1998-04-01 2010-06-29 Panasonic Corporation Data transmitting/receiving method, data transmission apparatus, data reception apparatus, data transmission/reception system, AV contents transmitting method, AV contents receiving method, AV contents transmission apparatus, AV contents reception apparatus, and program recording medium

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