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Posted to issues@commons.apache.org by "Sebb (JIRA)" <ji...@apache.org> on 2015/11/10 01:47:11 UTC

[jira] [Commented] (VALIDATOR-330) IbanCheckDigit.isValid() returns True for some invalid IBANs

    [ https://issues.apache.org/jira/browse/VALIDATOR-330?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14997755#comment-14997755 ] 

Sebb commented on VALIDATOR-330:
--------------------------------

The European Payments Council provide a document [1] which says:

"Calculate the modulo 97 and subtract the remainder from 98"

[1] http://www.europeanpaymentscouncil.eu/documents/ECBS IBAN standard EBS204_V3.2.pdf

> IbanCheckDigit.isValid() returns True for some invalid IBANs
> ------------------------------------------------------------
>
>                 Key: VALIDATOR-330
>                 URL: https://issues.apache.org/jira/browse/VALIDATOR-330
>             Project: Commons Validator
>          Issue Type: Bug
>          Components: Routines
>    Affects Versions: 1.4.0 Release
>            Reporter: Peter Shawe
>
> For example, isValid() returns True for both of these IBANs; "IE01AIBK93118702569045" and "IE98AIBK93118702569045".  The "IE98" version is the correct one (confirmed with online checkers, which also fail the "IE01" version).
> calculate() correctly returns "98".  As a workaround I'm calling calculate() and comparing the result with the checksum in the original IBAN.



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