Perl

Save a Private Key as a Traditional PEM File

Demonstrates the Chilkat PrivateKey.SavePemFile method, which saves the key as unencrypted PEM, preferring a traditional algorithm-specific representation (for example RSA PRIVATE KEY). The only argument is the destination path.

Note: 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.

Background: The file-writing form of GetPkcs1Pem, producing the legacy per-algorithm PEM that some older software requires. Prefer SavePkcs8PemFile for modern interoperability; use this when a consumer specifically needs the traditional layout. The PEM is unencrypted.

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Perl

use chilkat();

$success = 0;

#  Load a private key to export.
$privKey = chilkat::CkPrivateKey->new();
$success = $privKey->LoadPemFile("qa_data/private.pem");
if ($success == 0) {
    print $privKey->lastErrorText() . "\r\n";
    exit;
}

#  Save as unencrypted PEM, preferring the traditional algorithm-specific representation (for
#  example "RSA PRIVATE KEY" for RSA).
$success = $privKey->SavePemFile("qa_output/private.pem");
if ($success == 0) {
    print $privKey->lastErrorText() . "\r\n";
    exit;
}

print "Saved." . "\r\n";