Crypt::Perl::X509::Extension::noCheck
my $usage_obj = Crypt::Perl::X509::Extension::noCheck->new();
https://www.ietf.org/rfc/rfc2560.txt
To install Crypt::Perl, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Crypt::Perl
CPAN shell
perl -MCPAN -e shell install Crypt::Perl
For more information on module installation, please visit the detailed CPAN module installation guide.