JPS6454829A - Data enciphering transmission system - Google Patents

Data enciphering transmission system

Info

Publication number
JPS6454829A
JPS6454829A JP62211847A JP21184787A JPS6454829A JP S6454829 A JPS6454829 A JP S6454829A JP 62211847 A JP62211847 A JP 62211847A JP 21184787 A JP21184787 A JP 21184787A JP S6454829 A JPS6454829 A JP S6454829A
Authority
JP
Japan
Prior art keywords
bit string
voice
transmission
reception side
key bit
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
JP62211847A
Other languages
Japanese (ja)
Inventor
Shinichiro Hamamoto
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 JP62211847A priority Critical patent/JPS6454829A/en
Publication of JPS6454829A publication Critical patent/JPS6454829A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To set a key bit string without communicating in advance, by converting a transmission voice issued before data transmission to the key bit string, and setting it at an enciphering device and a decoding device. CONSTITUTION:When a reception side telephone set 16 is called from a telephone set 6 and an arbitrary voice is issued, the voice digitized by a voice identification device 8 is identified via an A/D converter 7, and it is converted to a bit string by a bit pattern generating device 3, and is written in the enciphering device 2 as the key bit string. Meanwhile, the voice is analogized again by a D/A converter 9, and is inputted to a reception side passing through a line via a network controller 5. At the reception side, it is digitized by the A/D converter passing through a network controller 15, and the same processing as at a transmission side is applied, and it is converted to the same key bit string as the one of the transmission side, and is written in the decoding device 12, and decoded, then, received at a data terminal 11. In such a way, it is possible to perform enciphering transmission without communicating in advance by the reception side.
JP62211847A 1987-08-25 1987-08-25 Data enciphering transmission system Pending JPS6454829A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62211847A JPS6454829A (en) 1987-08-25 1987-08-25 Data enciphering transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62211847A JPS6454829A (en) 1987-08-25 1987-08-25 Data enciphering transmission system

Publications (1)

Publication Number Publication Date
JPS6454829A true JPS6454829A (en) 1989-03-02

Family

ID=16612574

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62211847A Pending JPS6454829A (en) 1987-08-25 1987-08-25 Data enciphering transmission system

Country Status (1)

Country Link
JP (1) JPS6454829A (en)

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