Install libcrypt-x509-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libcrypt-x509-perl
Description:
Parse X.509 certificates with Perl
Crypt::X509 is a Perl module for parsing X.509 certificates. Methods are provided for accessing most certificate elements.
Homepage: http://search.cpan.org/dist/Crypt-X509/
Version: 0.51-1
Section: universe/perl