User's Manual

5
9.10 P
ROGRAMMING MODE
.................................................................................................................................... 37
9.10.1 Parameter transfer.................................................................................................................................... 38
9.11 C
OMPARING MODE
.........................................................................................................................................38
9.11.1 Parameter transfer.................................................................................................................................... 39
9.12 M
ODEL READING MODE
.................................................................................................................................. 39
9.12.1 Parameter transfer.................................................................................................................................... 40
9.13 S
ERIAL NUMBER READING MODE
.................................................................................................................... 40
9.14 E XT MODEL READING MODE ........................................................................................................................... 41
9.15 F
IX READING MODE
........................................................................................................................................ 41
9.16 F
AIL COUNTER READING MODE
...................................................................................................................... 42
9.17 AES
MODE
.....................................................................................................................................................42
9.17.1 Authentication........................................................................................................................................... 42
9.17.2 Utilization .................................................................................................................................................43
9.18 AES
SET MODE
............................................................................................................................................... 43
9.19 AES
SCRAMBLE MODE
................................................................................................................................... 43
9.20 E RRORS .......................................................................................................................................................... 44
9.21 S
OME SUGGESTIONS ON USING
S
MART
K
EY
'
S FUNCTIONS
............................................................................... 44
10 PROGRAM PROTECTION TECHNIQUES AND EXAMPLES............................................................... 45
10.1 G
ENERAL GUIDELINES
.................................................................................................................................... 45
10.1.1 Check the dongle in different points of your program. ............................................................................. 45
10.1.2 Extensive use of the Scrambling operation ...............................................................................................45
10.1.3 Hiding Label and Password...................................................................................................................... 46
10.1.4 Use the .OBJ version of the drivers .......................................................................................................... 46
10.1.5 CheckSum of your Executable files and of the DLLs ................................................................................46
10.1.6 Do not stop execution immediately if the dongle is not found................................................................... 46
10.1.7 Encrypt the required data with the Scrambling operation........................................................................ 47
10.2 G
UIDELINES FOR THE
M
EMORY
...................................................................................................................... 47
10.2.1 Control the Memory's functionality ..........................................................................................................47
10.2.2 Store the data required by the Memory..................................................................................................... 47
10.3 E
XAMPLES OF IMPLEMENTATION
.................................................................................................................... 48
10.3.1 Example 1 – Basic Use ............................................................................................................................. 48
10.3.2 Example 2 – Basic use of Scrambling....................................................................................................... 48
10.3.3 Example 3/4 – Storing and using a C function in the SmartKey memory .................................................49
10.3.4 Example 5 – Control of the DLL checksum ..............................................................................................51
10.3.5 Example 6 – Hiding Label and Password information............................................................................. 52
10.3.6 Example 7 – Scrambling confidential data ...............................................................................................53
10.3.7 Example 8/9–Generating and using a large Scrambling table................................................................. 53
10.3.8 Example 10 – Code encrypting.................................................................................................................56
10.3.9 Example 11 – AES authentication............................................................................................................. 56
11 MANUAL PROTECTION IN A NETWORK............................................................................................... 60