Loading the Test Keys

It is good security practice to ensure that the LMK pairs used in the operational system are not used during test operations. It is useful to have a set of known Test LMKs to simplify cryptographic fault-finding. It also helps the manufacturer to diagnose cryptographic problems if they know the LMK pairs. Therefore, all customers are provided with an identical "Test Key Smartcard". To load this device, use the LK command, with the Smartcard in the reader in the normal way.

The values of the LMK pairs contained in the Test Key Smartcard are shown in Figure 2 below. The two Passwords are also held in this device, and their values are also shown in Figure 2 below.

The PIN for the Test Key Smartcard is:

1 2 3 4

 

LMK

Contents

LMK

Contents

00

01

01

01

01

01

01

01

01

01

79

02

CD

1F

3

6E

F8

BA

02

20

20

20

20

20

20

20

20

03

31

31

31

31

31

31

31

31

04

40

40

40

40

40

40

40

40

05

51

51

51

51

51

51

51

51

06

61

61

61

61

61

61

61

61

07

70

70

70

70

70

70

70

70

08

80

80

80

80

80

80

80

80

09

91

91

91

91

91

91

91

91

10

A1

A1

A1

A1

A1

A1

A1

A1

11

B0

B0

B0

B0

B0

B0

B0

B0

12

C1

C1

01

01

01

01

01

01

13

D0

D0

01

01

01

01

01

01

14

E0

E0

01

01

01

01

01

01

15

F1

F1

01

01

01

01

01

01

16

1C

58

7F

1C

13

92

4F

EF

17

01

01

01

01

01

01

01

01

18

01

01

01

01

01

01

01

01

19

01

01

01

01

01

01

01

01

20

02

02

02

02

02

02

02

02

21

04

04

04

04

04

04

04

04

22

07

07

07

07

07

07

07

07

23

10

10

10

10

10

10

10

10

24

13

13

13

13

13

13

13

13

25

15

15

15

15

15

15

15

15

26

16

16

16

16

16

16

16

16

27

19

19

19

19

19

19

19

19

28

1A

1A

1A

1A

1A

1A

1A

1A

29

1C

1C

1C

1C

1C

1C

1C

1C

30

23

23

23

23

23

23

23

23

31

25

25

25

25

25

25

25

25

32

26

26

26

26

26

26

26

26

33

29

29

29

29

29

29

29

29

34

2A

2A

2A

2A

2A

2A

2A

2A

35

2C

2C

2C

2C

2C

2C

2C

2C

36

2F

2F

2F

2F

2F

2F

2F

2F

37

31

31

31

31

31

31

31

31

38

01

01

01

01

01

01

01

01

39

01

01

01

01

01

01

01

01

Password 1 = 01 01 01 01 01 01 01 01

Password 2 = NOW IS THE TIME FOR A

Figure 2– LMK Pairs (and Passwords) on the Test Key Smartcard