Man pages matching name scan_asn1derlengthvalue in section 3:

scan_asn1derlengthvalue.3.en	debian 10 / libowfat-dev
scan_asn1derlengthvalue.3.en	debian 11 / libowfat-dev
scan_asn1derlengthvalue.3.en	debian 12 / libowfat-dev