Title:
CAR ONBOARD COMMUNICATION SYSTEM AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/156328
Kind Code:
A1
Abstract:
The present invention enables effective detection of fraud without requiring alteration of the format of a communication frame. A communication system for performing communication of packet communication data comprises: a transmission device provided with a transmission data generation unit for generating a plurality of transmission data packets, and a signature data generation unit for generating a signature data packet including authentication data in which verification information for a transmitted plurality of transmission data packets is encrypted, the transmission device further having a transmission means for transmitting the transmission data packets and the signature data packet; and a receiving means having a verification unit for generating verification information with regard to a received plurality of transmission data packets, and comparing the generated information with verification information obtained from the authentication data included in the received signature data packet to verify the validity of the received data.
Inventors:
KYOSO TSUKASA (JP)
NARISAWA FUMIO (JP)
OTSUKA SATOSHI (JP)
NARISAWA FUMIO (JP)
OTSUKA SATOSHI (JP)
Application Number:
PCT/JP2014/052904
Publication Date:
October 02, 2014
Filing Date:
February 07, 2014
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H04L9/32; G06F21/64; G09C1/00
Domestic Patent References:
| WO2011105350A1 | 2011-09-01 |
Foreign References:
| JP2009081549A | 2009-04-16 | |||
| JP2008060809A | 2008-03-13 | |||
| JP2011229075A | 2011-11-10 |
Attorney, Agent or Firm:
HIRAKI Yusuke et al. (JP)
Yusuke Hiraki (JP)
Yusuke Hiraki (JP)
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