/// <summary>
/// Default constructor
/// </summary>
public KeyPairSetupDesignModel()
{
SelectedOperation = AsymmetricOperation.Encryption;
Algorithims = BaseMsdnAsymmetric.GetAlgorthims(SelectedOperation);
//Algorithims = IAsymmetricCipher.GetBouncyAlgorthims(SelectedOperation);
SelectedAlgorithimIndex = 0;
BaseMsdnAsymmetric.GetCipher(Algorithims[SelectedAlgorithimIndex]);
PrivateKey = ByteConvert.HexStringToBytes("FFFFFFFFF111000");
PublicKey = ByteConvert.HexStringToBytes("00000000FFFFFFF");
}
/// <summary>
/// The command method when a different algrithim is selected
/// </summary>
public void ChangedAlgorithim()
{
//Find out which api is beeing used
switch (Api)
{
//MSDN API
case CryptographyApi.MSDN:
//Get the selected cipher algorithim
SelectedCipher = BaseMsdnAsymmetric.GetCipher(Algorithims[SelectedAlgorithimIndex]);
break;
//Bouncy castle api
case CryptographyApi.BouncyCastle:
//Get the selected cipher algorithim
SelectedCipher = BaseBouncyAsymmetric.GetCipher(Algorithims[SelectedAlgorithimIndex]);
break;
}
//True if the cipher uses ec curves
if (SelectedCipher is IECAlgorithims ecCipher)
{
UsesKeySize = false;
UsesEcCurves = ecCipher.UsesCurves;
if (UsesEcCurves)
{
Providers = ecCipher.GetEcProviders();
var provider = (EcCurveProvider)Enum.Parse(typeof(EcCurveProvider), Providers[ProviderIndex]);
EcCurves = ecCipher.GetEcCurves(provider);
EcCurveIndex = 0;
}
}
//true if the cipher algorithims doesnt use ec curves
else if (SelectedCipher is INonECAlgorithims nonEcCipher)
{
UsesEcCurves = false;
UsesKeySize = nonEcCipher.UsesKeySize;
KeySizes = nonEcCipher.GetKeySizes();
KeySizeIndex = 0;
}
PrivateKeyFilePath = string.Empty;
PublicKeyFilePath = string.Empty;
OtherPartyPublicKeyFilePath = string.Empty;
OnKeyPairChanged();
}