Commission Implementing Regulation (EU) 2016/799 of 18 March 2016 implementing Regulation (EU) No 165/2014 of the European Parliament and of the Council laying down the requirements for the construction, testing, installation, operation and repair of tachographs and their components (Text with EEA relevance) (c. 799)

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ANNEX I C U.K. Requirements for construction, testing, installation, and inspection

Appendix 2

TACHOGRAPH CARDS SPECIFICATION U.K.

3. HARDWARE AND COMMUNICATION U.K.

3.5. Command descriptions U.K.

3.5.13 PERFORM HASH of FILE U.K.

This command is not compliant with ISO/IEC 7816-8. Thus the CLA byte of this command indicates that there is a proprietary use of the PERFORM SECURITY OPERATION / HASH.

Only the driver card and the workshop card are required to support this command in the DF Tachograph and DF Tachograph_G2.

Other types of tachograph cards may or may not implement this command. If a company or control card implements this command, the command shall be implemented as specified in this chapter.

The command may or may not be accessible in the MF. If so, the command shall be implemented as specified in this chapter, i.e. shall not allow the calculation of a hash value, but terminate with a suitable error code.

TCS_118 The PERFORM HASH of FILE command is used to hash the data area of the currently selected transparent EF. U.K.

TCS_119 A tachograph card shall support this command only for the EFs that are listed in chapter 4 under the DF_Tachograph and DF_Tachograph_G2 with the following exception. A tachograph card shall not support the command for the EF Sensor_Installation_Data of DF Tachograph_G2.. U.K.

TCS_120 The result of the hash operation is stored temporarily in the card. It can then be used to get a digital signature of the file, using the PSO: COMPUTE DIGITAL SIGNATURE command. U.K.

[F1 TCS_121 The temporarily stored hash of file value shall be deleted if a new hash of file value is computed by means of the PERFORM HASH of FILE command, if a DF is selected, and if the tachograph card is reset.] U.K.

Textual Amendments

F1 Substituted by Commission Implementing Regulation (EU) 2018/502 of 28 February 2018 amending Implementing Regulation (EU) 2016/799 laying down the requirements for the construction, testing, installation, operation and repair of tachographs and their components (Text with EEA relevance).

TCS_122 The Tachograph Generation 1 application shall support SHA-1. U.K.

[F1 TCS_123 The Tachograph Generation 2 application shall support the SHA-2 algorithm (SHA-256, SHA-384 or SHA-512), specified by the cipher suite in Appendix 11 Part B for the card signature key Card_Sign.] U.K.

TCS_124 Command Message U.K.

[F1 Byte	Length	Value	Description
CLA	1	‘ 80h ’	CLA
INS	1	‘ 2Ah ’	Perform Security Operation
P1	1	‘ 90h ’	Tag: Hash
P2	1	‘ 00h ’	Algorithm implicitly known For the Tachograph Generation 1 application: SHA-1 For the Tachograph Generation 2 application: SHA-2 algorithm (SHA-256, SHA-384 or SHA-512) defined by the cipher suite in Appendix 11 Part B for the card signature key Card_Sign]

TCS_125 Response Message U.K.

Byte	Length	Value	Description
SW	2	‘XXXXh’	Status Words (SW1,SW2)

• If the command is successful, the card returns ‘9000’.

• If the current EF does not allow this command (EF Sensor_Installation_Data in DF Tachograph_G2), the processing state ‘6985’ is returned.

• If the selected EF is considered corrupted (file attributes or stored data integrity errors), the processing state returned is ‘6400’ or ‘6581’.

• If the selected file is not a transparent file or if there is no current EF, the processing state returned is ‘6986’.