Tentando instalar o Crypt :: OpenSSL :: EC usando o cpan, o seguinte resultado:
$ cpan install Crypt::OpenSSL::EC
Reading '/home/vafbuild/.cpan/Metadata'
Database was generated on Mon, 05 Dec 2016 10:41:02 GMT
Running install for module 'Cr...
05.12.2016 / 14:05