Using a .NET .snk Key File for RSA Encryption

Demonstrates how to load and use a .NET .snk key file for RSA encryption. SNK files are created by the Microsoft .NET Strong Name Tool (Sn.exe).

 Chilkat Perl Module Downloads for Windows, Linux, and MAC OS X

use chilkat();

$rsa = new chilkat::CkRsa();

$success = $rsa->UnlockComponent("Anything for 30-day trial");
if ($success != 1) {
    print "RSA component unlock failed" . "\n";
    exit;
}

#  Load a public/private key pair from a .snk key file.
$xmlKey = $rsa->snkToXml("chilkat2.snk");

print $xmlKey . "\r\n";

#  The xmlKey contains both public and private keys.
#  Import either the public or private for encrypting or
#  decrypting.
$rsa->ImportPrivateKey($xmlKey);

$bUsePrivateKey = 1;
$encryptedText = $rsa->encryptStringENC("Hello World!",$bUsePrivateKey);

print $encryptedText . "\r\n";

#  Now decrypt with the public key:
$rsa->ImportPublicKey($xmlKey);
$bUsePrivateKey = 0;
$decryptedText = $rsa->decryptStringENC($encryptedText,$bUsePrivateKey);

print $decryptedText . "\r\n";

#  Note: We could have just as well encrypted using the public key
#  and decrypted using the private key.