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Council Regulation (EEC) No 3821/85Show full title
Council Regulation (EEC) No 3821/85 of 20 December 1985 on recording equipment in road transport
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- Revised 02/03/20160.44 MB
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[F1 [F21. INTRODUCTION U.K.
This appendix specifies the procedures to follow in order to perform the different types of data download to an external storage medium, together with the protocols that must be implemented to assure the correct data transfer and the full compatibility of the downloaded data format to allow any controller to inspect these data and be able to control their authenticity and their integrity before analysing them.
1.1. Scope U.K.
Data may be downloaded to an ESM:
from a vehicle unit by an intelligent dedicated equipment (IDE) connected to the VU,
from a tachograph card by an IDE fitted with a card interface device (IFD),
from a tachograph card via a vehicle unit by an IDE connected to the VU.
To give the possibility to verify the authenticity and integrity of downloaded data stored on an ESM, data is downloaded with a signature appended in accordance with Appendix 11 Common Security Mechanisms. The source equipment (VU or card) identification and its security certificates (Member State and equipment) are also downloaded. The verifier of the data must possess independently a trusted European public key.
[DDP_001] Data downloaded during one download session must be stored in the ESM within one file.
1.2. Acronyms and notations U.K.
The following acronyms are used in this appendix:
AID
application identifier
ATR
answer to reset
CS
checksum byte
DF
dedicated file
DS_
diagnostic session
EF
elementary file
ESM
external storage medium
FID
file identifier (File ID)
FMT
format byte (first byte of message header)
ICC
integrated circuit card
IDE
intelligent dedicated equipment: The equipment used to perform data downloading to the ESM (e.g. personal computer)
IFD
interface device
KWP
keyword protocol 2000
LEN
length byte (last byte of message header)
PPS
protocol parameter selection
PSO
perform security operation
SID
service identifier
SRC
source byte
TGT
target byte
TLV
tag length value
TREP
transfer response parameter
TRTP
transfer request parameter
VU
vehicle unit.] ]
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