Crypt::Perl::X509::Extension::ct_precert_poison
my $extn = Crypt::Perl::X509::Extension::ct_precert_poison->new();
Instances of this class represent a ct_precert_poison extension of an X.509 (SSL) certificate.
ct_precert_poison
You probably don’t need to instantiate this class directly; see Crypt::Perl::PKCS10 and Crypt::Perl::X509 for the way this module is meant to be used.
https://tools.ietf.org/html/rfc6962#section-3.3
https://letsencrypt.org/2018/04/04/sct-encoding.html
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.