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

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.4.0 Release
• Fix Version/s: 1.5.0
• Component/s: Routines
• Assignee: Unassigned
• Reporter: Peter Shawe
• Created: 29/Jan/14 10:37
• Updated: 23/Nov/15 23:24
• Resolved: 10/Nov/15 01:01

Description

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.