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openssl genrsa 1024 > /home/alice/ssltestkey.pem openssl req -new -key /home/alice/ssltestkey.pem -x509 -days 9999 -out + /home/alice/ssltestcert.pem
#!/usr/bin/perl use Crypt::SMIME; ... $smime->setPrivateKey(<PKEY>, <CERT>); my $signed = $smime->sign($plain); print $signed;