The Digipass 500 model has a specific T-button that produces a Digipass TestCode using fixed secret data common to all Digipass 500 devices. Thus, the time synchronization mechanism can be tested easily, and the exact ClockShift that may exist between a Digipass 500 and the host GMT clock (HostDateTime) is given in seconds.
Parameters
Table: Parameters (AAL2DP500Test)
Type
Name
Use
Description
aat_ascii *
TestCode
I
String of six numeric characters, null-terminated or padded with spaces. This parameter holds the Digipass code that is generated and displayed by Digipass 500 after pressing the T-button.
aat_ascii *
HostDateTime
O
Host GMT date and time value, expressed in this format:
Difference in seconds between the internal clock of Digipass 500 and the host system GMT time. This value is only significant when the function return code is 0, otherwise it has a fixed value of 99999999.
Return codes
Table: Return codes (AAL2DP500Test)
Code
Meaning
Code
Meaning
0
Success
-107
Challenge number wrong
1
Code not verified
-108
Challenge character invalid
142
Invalid TestCode pointer
-201
Response length out of bounds
143
Invalid HostDateTime pointer
-202
Response too short
144
Invalid ClockShift pointer
-203
Response too long
-101
Challenge too short
-204
Response check digit wrong
-102
Challenge too long
-205
Response character not decimal
-103
Challenge check digit wrong
-206
Response character not hexadecimal
-105
Challenge minimum length not allowed
-207
Response character set not specified
-106
Challenge maximum length not allowed
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