// Create an RSAPKCS1KeyExchangeFormatter object with a new RSA key.
// Display its properties to the console.
public void ConstructFormatter()
{
// Construct an empty Optimal Asymmetric Encryption Padding (OAEP)
// key exchange.
RSAPKCS1KeyExchangeFormatter rsaFormatter =
new RSAPKCS1KeyExchangeFormatter();
// Create an RSAKey and set it into the specified
// RSAPKCS1KeyExchangeFormatter.
RSA key = RSA.Create();
rsaFormatter.SetKey(key);
// Create a random number using RNGCryptoServiceProvider.
RNGCryptoServiceProvider ring = new RNGCryptoServiceProvider();
rsaFormatter.Rng = ring;
Console.WriteLine();
Console.WriteLine("**" + rsaFormatter.ToString() + "**");
Console.Write("The following random number was generated using the ");
Console.WriteLine("class:");
Console.WriteLine(rsaFormatter.Rng);
string xmlParameters = rsaFormatter.Parameters;
Console.WriteLine();
Console.WriteLine("The RSA formatter has the following parameters:");
Console.WriteLine(rsaFormatter.Parameters);
}
public void Properties()
{
RSAPKCS1KeyExchangeFormatter keyex = new RSAPKCS1KeyExchangeFormatter();
keyex.SetKey(key);
AssertEquals("RSAPKCS1KeyExchangeFormatter.Parameters", "<enc:KeyEncryptionMethod enc:Algorithm=\"http://www.microsoft.com/xml/security/algorithm/PKCS1-v1.5-KeyEx\" xmlns:enc=\"http://www.microsoft.com/xml/security/encryption/v1.0\" />", keyex.Parameters);
// null (default)
AssertNull("RSAPKCS1KeyExchangeFormatter.Rng", keyex.Rng);
AssertEquals("RSAPKCS1KeyExchangeFormatter.ToString()", "System.Security.Cryptography.RSAPKCS1KeyExchangeFormatter", keyex.ToString());
}
