/// <summary>
/// Encrypt the string with Shared secret
/// </summary>
/// <param name="message">Message to encrypt</param>
/// <param name="bobAddress">Receiver Neblio Address</param>
/// <param name="key">Shared secret key</param>
/// <returns></returns>
public static async Task <(bool, string)> EncryptStringWithSharedSecretWithKey(string message, string bobAddress, string key)
{
if (string.IsNullOrEmpty(message))
{
return(false, "Message cannot be empty or null.");
}
if (string.IsNullOrEmpty(bobAddress))
{
return(false, "Partner Address cannot be empty or null.");
}
if (string.IsNullOrEmpty(key))
{
return(false, "Input secret cannot null.");
}
try
{
var emesage = SymetricProvider.EncryptString(key, message);
return(true, emesage);
}
catch (Exception ex)
{
Console.WriteLine("Cannot encrypt message. " + ex.Message);
return(false, "Cannot encrypt message. " + ex.Message);
}
}
/// <summary>
/// Encrypt the string with Shared secret
/// </summary>
/// <param name="message">Message to encrypt</param>
/// <param name="bobAddress">Receiver Neblio Address</param>
/// <param name="secret">Alice secret</param>
/// <param name="sharedkey">shared key</param>
/// <returns></returns>
public static async Task <(bool, string)> EncryptStringWithSharedSecret(string message, string bobAddress, BitcoinSecret secret, string sharedkey = "")
{
if (string.IsNullOrEmpty(message))
{
return(false, "Message cannot be empty or null.");
}
if (string.IsNullOrEmpty(bobAddress))
{
return(false, "Partner Address cannot be empty or null.");
}
if (secret == null)
{
return(false, "Input secret cannot null.");
}
(bool, string)key = (false, "");
if (string.IsNullOrEmpty(sharedkey))
{
key = await GetSharedSecret(bobAddress, secret);
if (!key.Item1)
{
return(key);
}
}
else
{
key.Item2 = sharedkey;
}
try
{
var emesage = SymetricProvider.EncryptString(key.Item2, message);
return(true, emesage);
}
catch (Exception ex)
{
Console.WriteLine("Cannot encrypt message. " + ex.Message);
return(false, "Cannot encrypt message. " + ex.Message);
}
}
/// <summary>
/// Load the key and password.
/// Same logic as constructor of this class
/// </summary>
/// <param name="key"></param>
/// <param name="password"></param>
/// <param name="fromDb"></param>
/// <returns></returns>
public async Task <bool> LoadNewKey(string key, string password = "", bool fromDb = false)
{
if (string.IsNullOrEmpty(key))
{
return(false);
}
if (fromDb)
{
_key = key;
return(true);
}
if (!string.IsNullOrEmpty(password))
{
loadedPassword = password;
passwordLoaded = true;
_key = SymetricProvider.EncryptString(password, key);
IsEncrypted = true;
return(true);
}
else
{
_key = key;
IsEncrypted = false;
if (!string.IsNullOrEmpty(password))
{
loadedPassword = string.Empty;
}
else
{
loadedPassword = password;
}
passwordLoaded = true;
return(true);
}
}