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Issue in ARQC Generation for CVN18/22 #103

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ManojhM-1530 opened this issue Sep 10, 2024 · 5 comments · May be fixed by #106
Closed

Issue in ARQC Generation for CVN18/22 #103

ManojhM-1530 opened this issue Sep 10, 2024 · 5 comments · May be fixed by #106
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enhancement New feature or request stale

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@ManojhM-1530
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Hi @tilln,

While generating ARQC using the ISO8583 Crypto PreProcessor (ISO-8583 Version 1.3), I am able to generate an ARQC value, but we are getting declined error message due to ARQC. However, when I generate the ARQC using online tool, the value is correct, and I receive a successful response. I have attached the reference screenshots for your review. please note that we need to generate ARQC with CVN18/22.

Could you please assist me in resolving this issue? Is there any configuration that needs to be adjusted on my side?

*Note: Card number and key values have been masked.

Generated using online tool:

image

Generated Using ISO-8583 pre processor:

image

image
@tilln tilln added the bug Something isn't working label Sep 11, 2024
@tilln
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tilln commented Sep 11, 2024

Hi @ManojhM-1530

Thanks for reporting this issue.

I suspect it is caused by incorrect padding of the ARQC input data.

Could you please enter the value 80 in the "Padding (hex)" field and try again?

@ManojhM-1530
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Hi @tilln,

Thank you for the advice. I added 80 in the "Padding (hex)" and generated the ARQC value and it worked for me.

Once again Thank you for the quick response.

@tilln
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tilln commented Sep 11, 2024 •
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The user should not have to provide the padding or even know what padding method to apply.

Ideally, the CryptogramDataBuilder or CryptogramSpec should take care of that.

In fact, a padding option has been introduced but will only be released with jPOS v.2.1.10.
However, it does not consistently define the method to use for all cryptogram versions (only CPA).

A PR has been submitted at jPOS and will be included in the next release.

@tilln tilln added enhancement New feature or request and removed bug Something isn't working labels Sep 11, 2024
@github-actions github-actions bot added the stale label Oct 12, 2024
@tilln tilln removed the stale label Oct 12, 2024
Repository owner deleted a comment from github-actions bot Oct 12, 2024
@tilln tilln mentioned this issue Oct 14, 2024
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This issue is stale because it has been open for 30 days with no activity.

@github-actions github-actions bot added the stale label Nov 12, 2024
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This issue was closed because it has been inactive for 14 days since being marked as stale.

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Automatic arqc padding tilln/jmeter-iso8583
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@tilln @ManojhM-1530