Hi all!

In my DNSSEC key rollover processes, before deleting a key and when activating a key, I check if the signed zone contains signatures from the respective key. Up to know this was more or less:

  dig ... axfr | grep RRSIG | grep $KEYID

This worked fine for long time but when having keys with the same keyid this obviously does not work anymore. So I want to change my code to additionally check if the signature can be verified with the respective public key. Are there any tools (bash, php ...) which accepts single RRSIG RR and single DNSKEY RR and does the validation?

Thanks
Klaus

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