public HdKeyStorage Unlock(SecureString password)
{
try
{
using var scopedSeed = new ScopedBytes(Aes.Decrypt(
encryptedBytes: Hex.FromString(EncryptedSeed),
password: password,
keySize: AesKeySize,
saltSize: AesSaltSize,
iterations: AesRfc2898Iterations));
Seed = new SecureBytes(scopedSeed);
foreach (var singleKey in NonHdKeys)
{
singleKey.Unlock(password);
}
}
catch (Exception e)
{
Log.Error(e, "Unlock error");
}
return(this);
}
public static HdKeyStorage LoadFromFile(string pathToFile, SecureString password)
{
if (!File.Exists(pathToFile))
{
throw new FileNotFoundException($"File {pathToFile} not found.");
}
if (new FileInfo(pathToFile).Length > MaxFileSizeInBytes)
{
throw new Exception("File is too large");
}
HdKeyStorage result;
try
{
using var stream = new FileStream(pathToFile, FileMode.Open);
var network = stream.ReadByte();
var encryptedBytes = stream.ReadBytes((int)stream.Length - 1);
var decryptedBytes = Aes.Decrypt(
encryptedBytes: encryptedBytes,
password: password,
keySize: AesKeySize,
saltSize: AesSaltSize,
iterations: AesRfc2898Iterations);
var json = Encoding.UTF8.GetString(decryptedBytes);
result = JsonConvert.DeserializeObject <HdKeyStorage>(json);
if (result.Network != (Network)network)
{
throw new Exception("Wallet type does not match the type specified during creation");
}
if (result.Version != CurrentVersion)
{
throw new NotSupportedException($"Version {result.Version} does not match {CurrentVersion}");
}
}
catch (Exception e)
{
Log.Error(e, "HdKeyStorage data loading error");
throw;
}
return(result);
}
public void Unlock(SecureString password)
{
try
{
using var scopedSeed = new ScopedBytes(Aes.Decrypt(
encryptedBytes: Hex.FromString(EncryptedSeed),
password: password,
keySize: AesKeySize,
saltSize: AesSaltSize,
iterations: AesRfc2898Iterations));
Seed = new SecureBytes(scopedSeed);
}
catch (Exception e)
{
Log.Error(e, "Unlock error");
}
}
public void Encrypt(SecureString password)
{
try
{
using var scopedSeed = Seed.ToUnsecuredBytes();
EncryptedSeed = Aes.Encrypt(
plainBytes: scopedSeed,
password: password,
keySize: AesKeySize,
saltSize: AesSaltSize,
iterations: AesRfc2898Iterations)
.ToHexString();
}
catch (Exception e)
{
Log.Error(e, "Encrypt error");
}
}
public void SaveToFile(string pathToFile, SecureString password)
{
try
{
using var stream = new FileStream(pathToFile, FileMode.Create);
var serialized = JsonConvert.SerializeObject(this, Formatting.Indented);
var serializedBytes = Encoding.UTF8.GetBytes(serialized);
var encryptedBytes = Aes.Encrypt(
plainBytes: serializedBytes,
password: password,
keySize: AesKeySize,
saltSize: AesSaltSize,
iterations: AesRfc2898Iterations);
stream.WriteByte((byte)Network);
stream.Write(encryptedBytes, 0, encryptedBytes.Length);
}
catch (Exception e)
{
Log.Error(e, "HdKeyStorage save to file error");
}
}