FDM Masking Function HASHCARD1 Issue
Article ID: 187327
Updated On:
Products
Issue/Introduction
Masking Function HASHCARD1
Here is the result of our verification of the masking function HASHCARD1. Some masking rules do not have the expected result. Here is the list of problematic rules.
- After PARM4, if all the digits are « 0 » then we don’t mask or calculate the check digit.
For any value containing only zeros, the result must be the same. In the examples below, results should not be masked.
Mask command :
,CardNo1,HASHCARD1,1,16,7,13,Y,,,,,,,,,,,,,,,asd3af3,,,,,
|
Original card number |
Results received |
Status |
Results expected |
|
0;;;;;;;;; |
0;;;;;;;;; |
Ok |
0;;;;;;;;; |
|
00;;;;;;;;; |
00;;;;;;;;; |
Ok |
00;;;;;;;;; |
|
000;;;;;;;;; |
000;;;;;;;;; |
Ok |
000;;;;;;;;; |
|
0000;;;;;;;;; |
0000;;;;;;;;; |
Ok |
0000;;;;;;;;; |
|
00000;;;;;;;;; |
00000;;;;;;;;; |
Ok |
00000;;;;;;;;; |
|
000000;;;;;;;;; |
000000;;;;;;;;; |
Ok |
000000;;;;;;;;; |
|
0000000;;;;;;;;; |
0000004;;;;;;;;; |
Not ok |
0000000;;;;;;;;; |
|
00000000;;;;;;;;; |
00000005;;;;;;;;; |
Not ok |
00000000;;;;;;;;; |
|
000000000;;;;;;;;; |
000000002;;;;;;;;; |
Not ok |
000000000;;;;;;;;; |
|
0000000000;;;;;;;;; |
0000006200;;;;;;;;; |
Not ok |
0000000000;;;;;;;;; |
|
00000000000;;;;;;;;; |
00000022632;;;;;;;;; |
Not ok |
00000000000;;;;;;;;; |
|
000000000000;;;;;;;;; |
000000602624;;;;;;;;; |
Not ok |
000000000000;;;;;;;;; |
|
0000000000000;;;;;;;;; |
0000004856787;;;;;;;;; |
Not ok |
0000000000000;;;;;;;;; |
|
00000000000000;;;;;;;;; |
00000023377979;;;;;;;;; |
Not ok |
00000000000000;;;;;;;;; |
|
000000000000000;;;;;;;;; |
000000085057800;;;;;;;;; |
Not ok |
000000000000000;;;;;;;;; |
|
0000000000000000;;;;;;;;; |
0000000000000000;;;;;;;;; |
Ok |
0000000000000000;;;;;;;;; |
|
00000000000000000;;;;;;;;; |
00000023084970030;;;;;;;;; |
Not ok |
00000000000000000;;;;;;;;; |
|
000000000000000000;;;;;;;;; |
000000230849700300;;;;;;;;; |
Not ok |
000000000000000000;;;;;;;;; |
Used the same cases above but with the following masking formula : HASHCARD1,1,16,7,13,Y,,,,,,,,,,,,,,,asd3af3,000,,,,
The scramble file is empty and masking script end abnormally (exit value = 1).
- Must return the same value with the same Hash Key
In the example below, masking the same card number with the same masking key does not return the same result. Example, the masking of this : «4540022729963358», return this : «4540024027350353». But the masking of this : « V 000004540022729963358», return this : « V 000004540022579431318» but the expected result must be « V 000004540024027350353»
Mask command :
,CardNo1,HASHCARD1,10,25,7,13,Y,,,,,,,,,,,,,,,asd3af3,000,,,,
,CardNo2,HASHCARD1,1,16,7,13,Y,,,,,,,,,,,,,,,asd3af3,000,,,,
|
Original card number |
Masked card number |
Result |
Result expected |
|
V 000004540022729963358;4540022729963358;;;;;;;; |
V 000004540022579431318;4540024027350353;;;;;;;; |
Not ok |
V 000004540024027350353; 4540024027350353;;;;;;;; |
|
V 000004540022729963341;4540022729963341;;;;;;;; |
V 000004540022579431311;4540024027350346;;;;;;;; |
Not ok |
V 000004540024027350346; 4540024027350346;;;;;;;; |
|
V 000004540022729963333;4540022729963333;;;;;;;; |
V 000004540022579431313;4540024027350338;;;;;;;; |
Not ok |
V 000004540024027350338; 4540024027350338;;;;;;;; |
Environment
Release : 4.9
Component : CA Test Data Manager - Fast Data Masker
Cause
Resolution
You need to adjust the start index in the mask file. The start index should be considered the position of the first non-space character.
Ex.: " V 000004540022729963358” instead of param1 start with 10, you should update it to 8.
Additional Information
Latest TDM patches can be downloaded from link:
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