Export Magnetic Stripe Card Key Set

Command:

To export members Magnetic Stripe key set from the ESP for transport to the Europay KMC.

Notes:

Use of this command requires the optional ESP licence. Error code 67 will be returned if the command is not licensed.

The output from this function is a double length key used to encrypt keys sent from the Europay KMC (BKEM) and a double length key used to MAC keys sent from the Europay KMC (BKAM)

Some of the keys in the key set may be set to ‘all zeroes’ to indicate they are not used.

The ESP sequence number is created from the date/time in BCD = YYYYMMDDhhmmss00.

 

Field

Length & Type

Details

COMMAND MESSAGE

Message Header

m A

Will be returned to the Host unchanged

Command Code

2 A

Value “R6”

Delimiter

1 A

Optional. If present the following field must be present.

Value “;”.

ESP Version

1 A

“0” = September 2002 Specification

“1” = April 2003 Specification (Version = 01 02)

 

Only present if above Delimiter is present.

Member ID

10 N

Member ID number – provided by the KMC PSS16 form sent by Europay to the member

Key Set Reference

4 N

Reference of the Magnetic Stripe Card Keys provided in this key set, as defined by the member

Floor Expiry Date for key set

4 N

Expiry Date in format MMYY

PAN Range for Key Set

38 N

Concatenation of 19 digits formed of PAN‑low left padded by 0s and 19 digits formed of PAN‑high left padded by 0s

PVKI

1 N

Index of PVV, ‘0’ to ‘9’

PVV Key

1A + 32 H

Double length PVV key, encrypted under LMK pair 14-15 using Key Encryption Scheme U

Extra PVV Key Information

12 N

Extra data linked to the key

CVC1

1A + 32 H

Double length CVC1 key, encrypted under LMK 14-15 variant 4  using Key Encryption Scheme U

Extra CVC1 Key Information

11 N

Extra data linked to the key

  

CVC2

1A + 32 H

Double length CVC2 key, encrypted under LMK 14-15 variant 4  using Key Encryption Scheme U

Extra CVC2 Key Information

7 N

Extra data linked to the key

  

Transport Key ID

4 N

Key ID of the BKAM BKEM pair used

MAC algorithm

1 N

MAC algorithm parameters to be used with BKAM,
= ‘2’, ‘3’, ‘4’ or ‘6’, as defined in ISO/IEC 9797-1.

BKAM

1A + 32 H

BKAM encrypted under LMK pair 22-23 variant 6

BKEM

1A + 32 H

BKEM encrypted under LMK pair 22-23 variant 5

End Message Delimiter

1 C

  

Optional. Must be present if a message trailer is present. Value X'19

Message Trailer

n A

Optional. Maximum length 32 characters

RESPONSE MESSAGE

Message Header

m A

Will be returned to the Host unchanged

Response Code

2 A

Value “R7”

Error Code

2 N

00 – No error

8 – BKAM parity error

9 – BKEM parity error

10 – PVV key parity error

11 – CVC Key1 parity error

50 – CVC Key2 parity error

15 – Error in input data

51 – Invalid MAC algorithm number

80 - Data length error

ESP Sequence Number

16 H

Sequence Number from the ESP

  

Encrypted PVV Key

32 H

BKEM Encrypted PVV Key

PVV Key CV

3 B

Check Value on PVV

Encrypted CVC1 Key

32 H

BKEM Encrypted CVC1 Key

CVC1 Key CV

3 B

Check Value on CVC1

Encrypted CVC2 Key

32 H

BKEM Encrypted CVC2 Key

CVC2 Key CV

3 B

Check Value on CVC2

MAC

16 H

MAC calculated over key set data using BKAM

End Message Delimiter

1 C

  

Will only be present if present in the command message. Value X'19

Message Trailer

n A

  

Will only be present if in the command message. Maximum length 32 characters

Message Header

m A

Will be returned to the Host unchanged