5 use Crypt::OpenSSL::RSA;
6 use Crypt::OpenSSL::Bignum;
11 my $json_file = "private_key.json";
12 my $json_content = read_file($json_file);
13 $json_content =~ tr/-/+/;
14 $json_content =~ tr/_/\//;
16 my $json = decode_json($json_content);
18 my $n = Crypt::OpenSSL::Bignum->new_from_bin(decode_base64($json->{n}));
19 my $e = Crypt::OpenSSL::Bignum->new_from_bin(decode_base64($json->{e}));
20 my $d = Crypt::OpenSSL::Bignum->new_from_bin(decode_base64($json->{d}));
21 my $p = Crypt::OpenSSL::Bignum->new_from_bin(decode_base64($json->{p}));
22 my $q = Crypt::OpenSSL::Bignum->new_from_bin(decode_base64($json->{q}));
24 my $rsa = Crypt::OpenSSL::RSA->new_key_from_parameters($n, $e, $d, $p, $q);
26 print($rsa->get_private_key_string());