/// <summary>
/// Exports the Private key into material representation.
/// </summary>
public override byte[] ExportPrivateKey(IPrivateKey privateKey, string password = null)
{
try
{
if (string.IsNullOrEmpty(password))
{
return(VirgilKeyPair.PrivateKeyToDER(privateKey.Get().Value));
}
var passwordBytes = Encoding.UTF8.GetBytes(password);
var encryptedKey = VirgilKeyPair.EncryptPrivateKey(privateKey.Get().Value, passwordBytes);
return(VirgilKeyPair.PrivateKeyToDER(encryptedKey, passwordBytes));
}
catch (Exception ex)
{
throw new CryptoException(ex.Message);
}
}
/// <summary>
/// Exports the Private key into material representation.
/// </summary>
/// <param name="privateKey">private key for export.</param>
/// <param name="password">password that is used for encryption of private key raw bytes.</param>
/// <returns>Private key material representation bytes.</returns>
/// <example>
/// <code>
/// var crypto = new VirgilCrypto();
/// var keyPair = crypto.GenerateKeys();
/// var crypto = new VirgilCrypto();
/// var exportedPrivateKey = crypto.ExportPrivateKey(keyPair.PrivateKey, "my_password");
/// </code>
/// </example>
/// <remarks>How to import private key <see cref="ImportPrivateKey(byte[], string)"/>.</remarks>
/// <remarks>How to get generate keys <see cref="VirgilCrypto.GenerateKeys()"/>.</remarks>
public byte[] ExportPrivateKey(IPrivateKey privateKey, string password)
{
if (privateKey == null)
{
throw new ArgumentNullException("privateKey");
}
try
{
if (string.IsNullOrEmpty(password))
{
return(VirgilKeyPair.PrivateKeyToDER(VirgilCryptoExtentions.Get(privateKey).RawKey));
}
byte[] passwordBytes = Encoding.UTF8.GetBytes(password);
byte[] encryptedKey = VirgilKeyPair.EncryptPrivateKey(VirgilCryptoExtentions.Get(privateKey).RawKey,
passwordBytes);
return(VirgilKeyPair.PrivateKeyToDER(encryptedKey, passwordBytes));
}
catch (Exception ex)
{
throw new VirgilCryptoException(ex.Message);
}
}