public async Task Create(SecureString masterPassword)
{
using (var masterKey = AesKey.Generate())
{
using (var derivedKey = await Argon2Key.Calculate(masterPassword))
{
var encryptedMasterKey = await _aesCrypter.Encrypt(masterKey.Key, derivedKey.Value, masterKey.Iv);
var storableModel = new StorageModel(encryptedMasterKey, (byte[])masterKey.Iv.Clone(), new List <PasswordModel>());
await _fileStorage.Store(storableModel);
_masterKey = new byte[masterKey.Key.Length];
masterKey.Key.CopyTo(_masterKey, 0);
ProtectedMemory.Protect(_masterKey, MemoryProtectionScope.SameProcess);
}
}
}
public async Task <PasswordEntry> Add(PasswordEntry passwordEntry)
{
using (var masterKey = await _masterKeyManager.Get())
{
var iv = AesKey.Generate().Iv;
var newPassword = new PasswordModel(
iv,
await GetEncryptedSecureString(passwordEntry.Password, masterKey.Value, iv),
await _aesCrypter.Encrypt(Encoding.ASCII.GetBytes(passwordEntry.Description), masterKey.Value, iv),
await _aesCrypter.Encrypt(Encoding.ASCII.GetBytes(passwordEntry.UserName), masterKey.Value, iv));
var currentData = await _fileStorage.Read();
var updatedPasswords = currentData.Passwords.Append(newPassword);
await _fileStorage.Store(
new StorageModel(currentData.EncryptedMasterKey, currentData.Iv, updatedPasswords.ToList()));
return(new PasswordEntry(newPassword.Id, passwordEntry.Password, passwordEntry.UserName, passwordEntry.Description));
}
}
