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Title:
CIPHERING PROCESSING SYSTEM
Document Type and Number:
Japanese Patent JPS60260254
Kind Code:
A
Abstract:

PURPOSE: To prevent degradation of processing capability by using a ciphering device provided externally so as to apply ciphering processing to a data of packet.

CONSTITUTION: A processor 1"-1 transmits a data D of ciphering processing object from a line connecting terminal 4-3 to a ciphering device 5-1. The ciphering device 5-1 applies ciphering the data, a modulator-demodulator 2-3 transmits the ciphered data D to a modulator-demodulator 2-4 transmits the received and ciphered data D to a line connecting terminal 4-4 of the processor 1"-1, then the ciphered data D is connected with a header H not ciphered and the result is transmitted to a packet exchange network 6. On the other hand, when a packet reaches the line connecting terminal 4-1, the packet is separated and the ciphered data D is transmitted from the line connecting terminal 4-4 to the ciphering device 5-1, where the data is decoded and the processor 1"-1 receives the decoded data D.


Inventors:
HIGUCHI MASAO
FUKUHARA KUNIO
MIZUSAWA JIYUNICHI
IWASAKI SEIJI
HARA RIYUUICHI
WATANABE TOSHIHIKO
FUJITA MITSURU
Application Number:
JP11604684A
Publication Date:
December 23, 1985
Filing Date:
June 06, 1984
Export Citation:
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Assignee:
FUJITSU LTD
NIPPON TELEGRAPH & TELEPHONE
NIPPON ELECTRIC CO
International Classes:
H04L29/06; H04L9/10; H04L17/00; (IPC1-7): H04L9/00; H04L13/00
Attorney, Agent or Firm:
Sadaichi Igita