"make test" does not pass with Perl 5.10.1 and 5.12.5. The error reported is this: t/14-misc.t ........ Premature end of base64 data at /home/calle/.cpanm/work/1411552402.40560/Net-DNS-SEC-0.20/blib/lib/Net/DNS/RR/RRSIG.pm line 219. in new Net::DNS::RR( example.com. 300 IN RRSIG NSEC RSASHA1 2 300 20380 ... ) at t/14-misc.t line 69 The problem does not appear with Perl versions 5.14 and newer. I have not tested with versions older than 5.10.1. Tests have been run on a freshly installed and updated Ubuntu Server 14.04LTS virtual server, with perl interpreters built by perlbrew and prerequisite modules installed from CPAN (using cpanm).