JPS6472192A - Variable type cryptograph - Google Patents

Variable type cryptograph

Info

Publication number
JPS6472192A
JPS6472192A JP62227992A JP22799287A JPS6472192A JP S6472192 A JPS6472192 A JP S6472192A JP 62227992 A JP62227992 A JP 62227992A JP 22799287 A JP22799287 A JP 22799287A JP S6472192 A JPS6472192 A JP S6472192A
Authority
JP
Japan
Prior art keywords
ciphering
processing
selection information
plural
decoding
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
JP62227992A
Other languages
Japanese (ja)
Inventor
Hiroko Sagawa
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 JP62227992A priority Critical patent/JPS6472192A/en
Publication of JPS6472192A publication Critical patent/JPS6472192A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make it possible to select an optional ciphering processing means by selection information included in a ciphering key and to variably set up the frequency of cipherying processing by providing the variable ciphering device with plural ciphering processing means having respectively different ciphering processing frequencies. CONSTITUTION: This variable ciphering device is provided with plural ciphering processing means 5-1 to 5-n having respectively different numbers of ciphering processing blocks, a processing method decoding means 1 for decoding the selection information of ciphering keys including the information for selecting the means 5-1 to 5-n, and input side and output side switching means 2, 7 for selecting one of ciphering processing means out of the means 5-1 to 5-n and connecting the selected means respectively to an input terminal and an output terminal in accordance with the decoding result of the means 1. Namely each ciphering key includes selection information for specifying ciphering processing frequency and each of the means 2, 7 selects a ciphering processing means corresponding to the selection information out of plural means 5-1 to 5-n in response to the decoding result of the means 1. Consequently the quantity of data to be processed by an information processing system, ciphering intensity matched with secrecy and ciphering performance can be flexibly set up.
JP62227992A 1987-09-11 1987-09-11 Variable type cryptograph Pending JPS6472192A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62227992A JPS6472192A (en) 1987-09-11 1987-09-11 Variable type cryptograph

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62227992A JPS6472192A (en) 1987-09-11 1987-09-11 Variable type cryptograph

Publications (1)

Publication Number Publication Date
JPS6472192A true JPS6472192A (en) 1989-03-17

Family

ID=16869474

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62227992A Pending JPS6472192A (en) 1987-09-11 1987-09-11 Variable type cryptograph

Country Status (1)

Country Link
JP (1) JPS6472192A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001162016A (en) * 1999-12-14 2001-06-19 Samii Kk Gaming machine verification method, gaming machine and verification device
JP2001162015A (en) * 1999-12-14 2001-06-19 Samii Kk Gaming machine verification method, gaming machine and verification device
JP2001162004A (en) * 1999-12-14 2001-06-19 Samii Kk Gaming machine verification method, gaming machine and verification device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001162016A (en) * 1999-12-14 2001-06-19 Samii Kk Gaming machine verification method, gaming machine and verification device
JP2001162015A (en) * 1999-12-14 2001-06-19 Samii Kk Gaming machine verification method, gaming machine and verification device
JP2001162004A (en) * 1999-12-14 2001-06-19 Samii Kk Gaming machine verification method, gaming machine and verification device

Similar Documents

Publication Publication Date Title
ES465844A1 (en) Data-processing system which protects the secrecy of confidential data
SG47106A1 (en) Method and apparatus for performing a fast hadamard transform
KR850005218A (en) Pseudo Stereo Signal Generator
DE69607019D1 (en) DEVICE FOR USE AS AN EDUCATIONAL TOY
ES531413A0 (en) A METHOD FOR ESTABLISHING THE SPACING BETWEEN ADJACENT CHARACTERS IN A FACILITY TO GENERATE CHARACTER TEXT LINES
JPS5621459A (en) Autodial unit
MY104439A (en) Switching circuitry
JPS54109872A (en) Pla system of electronic type multifunction watch
KR850006802A (en) Data transmission device
GB1105116A (en) Improvements in or relating to magnetic core coding matrices
SE309053B (en)
EP0370194A3 (en) Reconfigurable register bit slice
JPS5478634A (en) Input/output interface
JPS6458047A (en) Transaction processing system
JPS5763950A (en) System and device for ciphering
JPS5792994A (en) Transmitting device
JP2587423B2 (en) Cryptographic processing unit
JPS56129473A (en) Facsimile device with memory device
EP0276815A3 (en) Transaction processing apparatus having external memory apparatuses connected thereto
JPS5694472A (en) Transmission control system in data gathering system
KR960038256A (en) Control of simultaneous cooking of food
JPS5735451A (en) Interface device
JPS58106929A (en) Method and device for secret communication
EP0270038A3 (en) A copying machine
JPH0365701B2 (en)