public void Properties()
{
RSAOAEPKeyExchangeFormatter keyex = new RSAOAEPKeyExchangeFormatter();
keyex.SetKey(key);
Assert.IsNull(keyex.Parameter, "RSAOAEPKeyExchangeFormatter.Parameter");
Assert.IsNull(keyex.Parameters, "RSAOAEPKeyExchangeFormatter.Parameters");
Assert.IsNull(keyex.Rng, "RSAOAEPKeyExchangeFormatter.Rng");
Assert.AreEqual("System.Security.Cryptography.RSAOAEPKeyExchangeFormatter", keyex.ToString());
}
public void Properties()
{
RSAOAEPKeyExchangeFormatter keyex = new RSAOAEPKeyExchangeFormatter();
keyex.SetKey(key);
Assertion.AssertNull("RSAOAEPKeyExchangeFormatter.Parameter", keyex.Parameter);
Assertion.AssertNull("RSAOAEPKeyExchangeFormatter.Parameters", keyex.Parameters);
Assertion.AssertNull("RSAOAEPKeyExchangeFormatter.Rng", keyex.Rng);
Assertion.AssertEquals("RSAOAEPKeyExchangeFormatter.ToString()", "System.Security.Cryptography.RSAOAEPKeyExchangeFormatter", keyex.ToString());
}
public byte[] EncryptSessionKeyByRSA(byte[] sessionKey, string keyToUse)
{
AsymmetricAlgorithm rsa = algo;
if (!String.IsNullOrEmpty(keyToUse))
{
rsa.FromXmlString(keyToUse);
}
RSAOAEPKeyExchangeFormatter forma = new RSAOAEPKeyExchangeFormatter();
forma.SetKey(rsa);
byte[] exchangeData = forma.CreateKeyExchange(sessionKey);
return(exchangeData);
}
// Create an RSAOAEPKeyExchangeFormatter object with a new RSA key.
// Display its properties to the console.
private void ConstructFormatter()
{
// Construct an empty Optimal Asymmetric Encryption Padding (OAEP)
// key exchange.
//<Snippet1>
RSAOAEPKeyExchangeFormatter rsaFormatter =
new RSAOAEPKeyExchangeFormatter();
//</Snippet1>
// Create an RSA and set it into the specified
// RSAOAEPKeyExchangeFormatter.
//<Snippet5>
RSA key = RSA.Create();
rsaFormatter.SetKey(key);
//</Snippet5>
// Create a random number using the RNGCryptoServiceProvider provider.
//<Snippet6>
RNGCryptoServiceProvider ring = new RNGCryptoServiceProvider();
rsaFormatter.Rng = ring;
//</Snippet6>
// Export InverseQ and set it into the RSAOAEPKeyExchangeFormatter.
//<Snippet7>
rsaFormatter.Parameter = key.ExportParameters(true).InverseQ;
//</Snippet7>
Console.WriteLine();
Console.WriteLine("**" + rsaFormatter.ToString() + "**");
Console.Write("The following random number was generated using the ");
Console.WriteLine("class:");
Console.WriteLine(rsaFormatter.Rng);
Console.WriteLine();
Console.Write("The RSA formatter contains the following InverseQ");
Console.WriteLine(" parameter:");
Console.WriteLine(Encoding.ASCII.GetString(rsaFormatter.Parameter));
Console.WriteLine();
//<Snippet13>
string xmlParameters = rsaFormatter.Parameters;
//</Snippet13>
Console.WriteLine("The RSA formatter has the following parameters:");
Console.WriteLine(xmlParameters);
}
public static Boolean Test()
{
Boolean bRes = true;
RSAPKCS1KeyExchangeFormatter pcef1 = new RSAPKCS1KeyExchangeFormatter(RSA.Create());
RSAPKCS1KeyExchangeDeformatter pced1 = new RSAPKCS1KeyExchangeDeformatter(RSA.Create());
Console.WriteLine("pcef1 parameters: " + pcef1.Parameters + "\npced1 parameters: " + pced1.Parameters);
bRes = TestKeyExchange(pcef1, pced1, false) && bRes;
RSA rsa = RSA.Create();
RandomNumberGenerator rng = new RNGCryptoServiceProvider();
RSAPKCS1KeyExchangeFormatter pcef2 = new RSAPKCS1KeyExchangeFormatter();
RSAPKCS1KeyExchangeDeformatter pced2 = new RSAPKCS1KeyExchangeDeformatter(rsa);
RSA rsa1 = RSA.Create();
rsa1.ImportParameters(rsa.ExportParameters(false));
pcef2.SetKey(rsa1);
pcef2.Rng = rng;
pced2.RNG = rng;
Console.WriteLine("pcef2 parameters: " + pcef2.Parameters + "\npced2 parameters: " + pced2.Parameters);
bRes = TestKeyExchange(pcef2, pced2, true) && bRes;
RSAOAEPKeyExchangeFormatter ocef1 = new RSAOAEPKeyExchangeFormatter(RSA.Create());
RSAOAEPKeyExchangeDeformatter oced1 = new RSAOAEPKeyExchangeDeformatter(RSA.Create());
Console.WriteLine("ocef1 parameters: " + ocef1.Parameters + "\noced1 parameters: " + oced1.Parameters);
bRes = TestKeyExchange(ocef1, oced1, false) && bRes;
rsa = RSA.Create();
rng = new RNGCryptoServiceProvider();
RSAOAEPKeyExchangeFormatter ocef2 = new RSAOAEPKeyExchangeFormatter();
RSAOAEPKeyExchangeDeformatter oced2 = new RSAOAEPKeyExchangeDeformatter(rsa);
rsa1 = RSA.Create();
rsa1.ImportParameters(rsa.ExportParameters(false));
ocef2.SetKey(rsa1);
ocef2.Rng = rng;
// oced2.RNG = rng;
Console.WriteLine("ocef2 parameters: " + ocef2.Parameters + "\noced2 parameters: " + oced2.Parameters);
bRes = TestKeyExchange(ocef2, oced2, true) && bRes;
return(bRes);
}
public static Boolean Test()
{
Boolean bRes = true;
RSAPKCS1KeyExchangeFormatter pcef1 = new RSAPKCS1KeyExchangeFormatter(RSA.Create());
RSAPKCS1KeyExchangeDeformatter pced1 = new RSAPKCS1KeyExchangeDeformatter(RSA.Create());
Console.WriteLine("pcef1 parameters: " + pcef1.Parameters + "\npced1 parameters: " + pced1.Parameters);
bRes = TestKeyExchange(pcef1, pced1, false) && bRes;
RSA rsa = RSA.Create();
RandomNumberGenerator rng = new RNGCryptoServiceProvider();
RSAPKCS1KeyExchangeFormatter pcef2 = new RSAPKCS1KeyExchangeFormatter();
RSAPKCS1KeyExchangeDeformatter pced2 = new RSAPKCS1KeyExchangeDeformatter(rsa);
RSA rsa1 = RSA.Create();
rsa1.ImportParameters(rsa.ExportParameters(false));
pcef2.SetKey(rsa1);
pcef2.Rng = rng;
pced2.RNG = rng;
Console.WriteLine("pcef2 parameters: " + pcef2.Parameters + "\npced2 parameters: " + pced2.Parameters);
bRes = TestKeyExchange(pcef2, pced2, true) && bRes;
RSAOAEPKeyExchangeFormatter ocef1 = new RSAOAEPKeyExchangeFormatter(RSA.Create());
RSAOAEPKeyExchangeDeformatter oced1 = new RSAOAEPKeyExchangeDeformatter(RSA.Create());
Console.WriteLine("ocef1 parameters: " + ocef1.Parameters + "\noced1 parameters: " + oced1.Parameters);
bRes = TestKeyExchange(ocef1, oced1, false) && bRes;
rsa = RSA.Create();
rng = new RNGCryptoServiceProvider();
RSAOAEPKeyExchangeFormatter ocef2 = new RSAOAEPKeyExchangeFormatter();
RSAOAEPKeyExchangeDeformatter oced2 = new RSAOAEPKeyExchangeDeformatter(rsa);
rsa1 = RSA.Create();
rsa1.ImportParameters(rsa.ExportParameters(false));
ocef2.SetKey(rsa1);
ocef2.Rng = rng;
// oced2.RNG = rng;
Console.WriteLine("ocef2 parameters: " + ocef2.Parameters + "\noced2 parameters: " + oced2.Parameters);
bRes = TestKeyExchange(ocef2, oced2, true) && bRes;
return bRes;
}