|
public ExportParameters ( bool includePrivateParameters ) : |
||
| includePrivateParameters | bool | true to include private parameters; otherwise, false. |
| return | ||
public static void Main(string[] args)
{
ECDiffieHellmanCng alice = new ECDiffieHellmanCng();
//alice.DeriveKeyMaterial(
//CngKey.Import(
// create a new DH instance
DiffieHellman dh1 = new DiffieHellmanManaged();
// export the public parameters of the first DH instance
DHParameters dhp = dh1.ExportParameters(false);
// create a second DH instance and initialize it with the public parameters of the first instance
DiffieHellman dh2 = new DiffieHellmanManaged(dhp.P, dhp.G, 160);
// generate the public key of the first DH instance
byte[] ke1 = dh1.CreateKeyExchange();
// generate the public key of the second DH instance
byte[] ke2 = dh2.CreateKeyExchange();
// let the first DH instance compute the shared secret using the second DH public key
byte[] dh1k = dh1.DecryptKeyExchange(ke2);
// let the second DH instance compute the shared secret using the first DH public key
byte[] dh2k = dh2.DecryptKeyExchange(ke1);
// print both shared secrets to verify they are the same
Console.WriteLine("Computed secret of instance 1:");
PrintBytes(dh1k);
Console.WriteLine("\r\nComputed secret of instance 2:");
PrintBytes(dh2k);
Console.WriteLine("\r\nPress ENTER to continue...");
Console.ReadLine();
}
public static DHKeyPair GenerateKeyPair(int keysize)
{
DiffieHellman dh = new DiffieHellmanManaged(_prime, new byte[] { 0x02 }, keysize);
DHParameters privateKey = dh.ExportParameters(true);
return new DHKeyPair(
new DHPrivateKey(privateKey),
new DHPublicKey(dh.CreateKeyExchange()));
}