Install libcrypt-openssl-x509-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libcrypt-openssl-x509-perl
Description:
Perl extension to OpenSSL's X509 API
The Crypt::OpenSSL::X509 module implements a large majority of OpenSSL's useful X509 API.
Homepage: https://metacpan.org/release/Crypt-OpenSSL-X509
Version: 1.8.8-1build1
Section: universe/perl