Decrypt S/MIME using a Certificate with Private Key Access

See more MIME Examples

Loads a CMS/PKCS #7 encrypted S/MIME message and decrypts it back to the original MIME content.

DecryptUsingCert takes a single certificate that already has access to its associated private key, for example a certificate loaded from a PFX.

The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

use strict;
use warnings;
use Chilkat2;

my $mime = Chilkat2::Mime->new;
my $success = $mime->LoadMimeFile('qa_data/encrypted.eml');
if (!$success) {
    print $mime->LastErrorText, "\n";
    exit;
}

# Decrypt using a certificate that already provides access to its private key (for example loaded
# from a PFX).  The only argument is the certificate.
my $pfxPassword = 'myPfxPassword';
my $cert = Chilkat2::Cert->new;
$success = $cert->LoadPfxFile('qa_data/recipient.pfx', $pfxPassword);
if (!$success) {
    print $cert->LastErrorText, "\n";
    exit;
}

$success = $mime->DecryptUsingCert($cert);
if (!$success) {
    print $mime->LastErrorText, "\n";
    exit;
}

my $body = $mime->GetBodyDecoded();
if (!$mime->LastMethodSuccess) {
    print $mime->LastErrorText, "\n";
    exit;
}

print $body, "\n";