SsinValidator rejects valid NR "overflow" SSINs

belgif / rest-problem-java

Java library for RFC 9457 Problems with support for standard problem types of the Belgif REST guide (https://www.belgif.be/specification/rest/api-guide/#error-handling)

https://belgif.github.io/rest-problem-java/

Apache License 2.0

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SsinValidator rejects valid NR "overflow" SSINs #81

Closed jpraet closed 1 month ago

jpraet commented 1 month ago

When the counter of an NR SSIN overflows, the date part is incremented (this mostly occurs for incomplete birth dates).

The SsinValidator incorrectly rejects such SSINs:

10000100182
10200100128
10400100171
00003241778 <- this is new, since recently the overflow SSINs for people with unknown birth date have started overflowing to > 31.