RSA OAEP Padding

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Demonstrates how to use OAEP padding with the RSA encryption algorithm. More information about OAEP Padding.

Chilkat.Rsa rsa = new Chilkat.Rsa();

bool success;
success = rsa.UnlockComponent("Anything for 30-day trial");
if (success != true) {
    MessageBox.Show("RSA component unlock failed");
    return;
}

//  RSA public key in XML format:
string publicKey;
publicKey = "<RSAKeyValue><Modulus>of3im3mRgd2NLXIGoK6uYLg6jj0Ug2b42rnqa5Tbwz2ieFqMJqt+++x2oqLYGurlz49nt+7/785g3XYWqoka4u9c9zul6YubIjnBM72dQy7rEkEfbUxgjcxqXyjZFx+FpaxFUecLu688XEu+9UA42VKiCgcl+E7TrqnfeeYpNXc=</Modulus><Exponent>AQAB</Exponent></RSAKeyValue>";

rsa.ImportPublicKey(publicKey);

//  To use Optimal Asymmetric Encryption Padding (OAEP) padding,
//  simply set the OaepPadding property:
rsa.OaepPadding = true;

//  Encrypt a string and return the encrypted data base64-encoded:
rsa.EncodingMode = "base64";

string plainText;
plainText = "RSA Encryption should be easy.";

bool usePrivateKey;
usePrivateKey = false;
string encryptedStr;
encryptedStr = rsa.EncryptStringENC(plainText,usePrivateKey);
textBox1.Text += encryptedStr + "\r\n";
textBox1.Refresh();