piv-tool: Free RSA key
piv-tool: Free RSA key

Thanks oss-fuzz
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=47634

mouse07410/OpenSC,philipWendland/OpenSC,dengert/OpenSC,metsma/OpenSC,philipWendland/OpenSC,metsma/OpenSC,LudovicRousseau/OpenSC,mouse07410/OpenSC,OpenSC/OpenSC,dengert/OpenSC,OpenSC/OpenSC,LudovicRousseau/OpenSC,metsma/OpenSC,dengert/OpenSC,LudovicRousseau/OpenSC,philipWendland/OpenSC,mouse07410/OpenSC,OpenSC/OpenSC