public async Task <string> GenerateTokenAsync(TokenInfo info)
{
var secret = await service
.GetSecretAsync(info.Owner)
.ConfigureAwait(false);
if (secret == null || secret.Value == null)
{
secret = Secret.Generate(info.Owner, 9);
await service.AddSecretAsync(secret);
}
var content = JsonSerializer.Serialize(
info.Content,
typeof(IEnumerable <string>),
new JsonSerializerOptions()
{
IgnoreNullValues = true
});
var owner = Encoding.UTF8.GetBytes(info.Owner);
this.cipher.Encrypt(
Encoding.UTF8.GetBytes(secret.Value),
Encoding.UTF8.GetBytes(content),
owner,
out var checksum,
out var data);
return(Token.Create(data, owner, checksum).ToString());
}
public ConfigsTFAModel()
{
TFA = new TFAInfo
{
Secret = Secret.Generate()
};
IsActive = current.HasTFA;
}
public byte[] Encrypt(byte[] plaintext)
{
Ensure.NotNullOrEmpty(plaintext, nameof(plaintext));
var iv = Secret.Generate(16); // 128 bit iv
using (var aes = new AesDataProtector(key: key.Value, iv: iv.Value))
{
var ciphertext = aes.Encrypt(plaintext);
var message = new EncryptedDataMessage(
keyId: key.Id,
iv: iv.Value,
ciphertext: ciphertext
);
return(Serializer.Serialize(message));
}
}
public void ConfigureServices(IServiceCollection services)
{
services.AddSingleton <IDatabaseSettings>(
Configuration.GetSection(nameof(DatabaseSettings)).Get <DatabaseSettings>());
services.AddSingleton <SecretService>();
services.AddSingleton <ExoplanetService>();
services.AddSingleton <SymmetricAlgorithm>(provider => {
var service = provider.GetService <SecretService>();
var secret = service.GetSecretAsync("secret")
.GetAwaiter().GetResult();
if (secret == null)
{
secret = Secret.Generate("secret", 16);
service.AddSecretAsync(secret)
.GetAwaiter().GetResult();
}
var alg = SymmetricAlgorithm.Create("AES");
alg.Key = Convert.FromBase64String(secret.Value);
alg.Mode = CipherMode.ECB;
alg.Padding = PaddingMode.Zeros;
return(alg);
});
services.AddSingleton <ITransformer, Transformer>();
services.AddSingleton <IMultiplicator, Multiplicator>();
services.AddSingleton <ICombiner, Combiner>();
services.AddSingleton <ICipher, Cipher>();
services.AddSingleton <Authenticator>();
services.AddControllers().AddJsonOptions(options => {
options.JsonSerializerOptions.IgnoreNullValues = true;
});
}