JPS6454829A - Data enciphering transmission system - Google Patents
Data enciphering transmission systemInfo
- 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
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.
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) |
-
1987
- 1987-08-25 JP JP62211847A patent/JPS6454829A/en active Pending
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