private static AppEncryptionSessionFactory CreateDefaultAppEncryptionSessionFactory(
string productId,
string systemId,
KeyManagementService keyManagementService,
IMetastorePersistence <JObject> metastorePersistence)
{
return(AppEncryptionSessionFactory.NewBuilder(productId, systemId)
.WithMetaStorePersistence(metastorePersistence)
.WithNeverExpiredCryptoPolicy()
.WithKeyManagementService(keyManagementService)
.Build());
}
public AppEncryptionSessionFactory(
string productId,
string systemId,
IMetastorePersistence <JObject> metastorePersistence,
SecureCryptoKeyDictionaryFactory <DateTimeOffset> secureCryptoKeyDictionaryFactory,
CryptoPolicy cryptoPolicy,
KeyManagementService keyManagementService)
{
this.productId = productId;
this.systemId = systemId;
this.metastorePersistence = metastorePersistence;
this.secureCryptoKeyDictionaryFactory = secureCryptoKeyDictionaryFactory;
systemKeyCache = secureCryptoKeyDictionaryFactory.CreateSecureCryptoKeyDictionary();
this.cryptoPolicy = cryptoPolicy;
this.keyManagementService = keyManagementService;
}
public EnvelopeEncryptionJsonImpl(
AppEncryptionPartition partition,
IMetastorePersistence <JObject> metastorePersistence,
SecureCryptoKeyDictionary <DateTimeOffset> systemKeyCache,
SecureCryptoKeyDictionaryFactory <DateTimeOffset> intermediateKeyCacheFactory,
AeadEnvelopeCrypto aeadEnvelopeCrypto,
CryptoPolicy cryptoPolicy,
KeyManagementService keyManagementService)
{
this.partition = partition;
this.metastorePersistence = metastorePersistence;
this.systemKeyCache = systemKeyCache;
intermediateKeyCache = intermediateKeyCacheFactory.CreateSecureCryptoKeyDictionary();
crypto = aeadEnvelopeCrypto;
this.cryptoPolicy = cryptoPolicy;
this.keyManagementService = keyManagementService;
}
public AppJsonEncryptionImplTest()
{
appEncryptionPartition = new AppEncryptionPartition("PARTITION", "SYSTEM", "PRODUCT");
Dictionary <string, JObject> memoryPersistence = new Dictionary <string, JObject>();
dataPersistence = new AdhocPersistence <JObject>(
key => memoryPersistence.TryGetValue(key, out JObject result) ? result : Option <JObject> .None,
(key, jsonObject) => memoryPersistence.Add(key, jsonObject));
metastorePersistence = new MemoryPersistenceImpl <JObject>();
keyManagementService = new DummyKeyManagementService();
AeadEnvelopeCrypto aeadEnvelopeCrypto = new BouncyAes256GcmCrypto();
// Generate a dummy systemKey document
CryptoKey systemKey = aeadEnvelopeCrypto.GenerateKey();
byte[] encryptedSystemKey = keyManagementService.EncryptKey(systemKey);
EnvelopeKeyRecord systemKeyRecord = new EnvelopeKeyRecord(DateTimeOffset.UtcNow, null, encryptedSystemKey);
// Write out the dummy systemKey record
memoryPersistence.TryAdd(appEncryptionPartition.SystemKeyId, systemKeyRecord.ToJson());
}
public static AppEncryptionSessionFactory CreateDefaultAppEncryptionSessionFactory(
KeyManagementService keyManagementService, IMetastorePersistence <JObject> metastorePersistence)
{
return(CreateDefaultAppEncryptionSessionFactory(DefaultProductId, DefaultSystemId, keyManagementService, metastorePersistence));
}
internal static Mock <IMetastorePersistence <JObject> > CreateMetastoreMock(
AppEncryptionPartition appEncryptionPartition,
KeyManagementService kms,
KeyState metaIK,
KeyState metaSK,
CryptoKeyHolder cryptoKeyHolder,
IMetastorePersistence <JObject> metaStore)
{
CryptoKey systemKey = cryptoKeyHolder.SystemKey;
Mock <IMetastorePersistence <JObject> > metaStorePersistenceSpy = new Mock <IMetastorePersistence <JObject> >();
metaStorePersistenceSpy
.Setup(x => x.Load(It.IsAny <string>(), It.IsAny <DateTimeOffset>()))
.Returns <string, DateTimeOffset>(metaStore.Load);
metaStorePersistenceSpy
.Setup(x => x.LoadLatestValue(It.IsAny <string>()))
.Returns <string>(metaStore.LoadLatestValue);
metaStorePersistenceSpy
.Setup(x => x.Store(It.IsAny <string>(), It.IsAny <DateTimeOffset>(), It.IsAny <JObject>()))
.Returns <string, DateTimeOffset, JObject>(metaStore.Store);
if (metaSK != KeyState.Empty)
{
if (metaSK == KeyState.Retired)
{
// We create a revoked copy of the same key
DateTimeOffset created = systemKey.GetCreated();
systemKey = systemKey
.WithKey(bytes => Crypto.GenerateKeyFromBytes(bytes, created, true));
}
EnvelopeKeyRecord systemKeyRecord = new EnvelopeKeyRecord(
systemKey.GetCreated(), null, kms.EncryptKey(systemKey), systemKey.IsRevoked());
metaStore.Store(
appEncryptionPartition.SystemKeyId,
systemKeyRecord.Created,
systemKeyRecord.ToJson());
}
if (metaIK != KeyState.Empty)
{
CryptoKey intermediateKey = cryptoKeyHolder.IntermediateKey;
if (metaIK == KeyState.Retired)
{
// We create a revoked copy of the same key
DateTimeOffset created = intermediateKey.GetCreated();
intermediateKey = intermediateKey
.WithKey(bytes => Crypto.GenerateKeyFromBytes(bytes, created, true));
}
EnvelopeKeyRecord intermediateKeyRecord = new EnvelopeKeyRecord(
intermediateKey.GetCreated(),
new KeyMeta(appEncryptionPartition.SystemKeyId, systemKey.GetCreated()),
Crypto.EncryptKey(intermediateKey, systemKey),
intermediateKey.IsRevoked());
metaStore.Store(
appEncryptionPartition.IntermediateKeyId,
intermediateKeyRecord.Created,
intermediateKeyRecord.ToJson());
}
return(metaStorePersistenceSpy);
}
public ICryptoPolicyStep WithMetaStorePersistence(IMetastorePersistence <JObject> persistence)
{
metastorePersistence = persistence;
return(this);
}
public ICryptoPolicyStep WithMemoryPersistence()
{
metastorePersistence = new MemoryPersistenceImpl <JObject>();
return(this);
}
private static async void App(Options options)
{
IMetastorePersistence <JObject> metastorePersistence = null;
KeyManagementService keyManagementService = null;
if (options.MetaStore == MetaStore.ADO)
{
if (options.AdoConnectionString != null)
{
logger.LogInformation("using ADO-based metastore...");
metastorePersistence = AdoMetastorePersistenceImpl
.NewBuilder(MySqlClientFactory.Instance, options.AdoConnectionString)
.Build();
}
else
{
logger.LogError("ADO connection string is a mandatory parameter with MetaStore Type: ADO");
Console.WriteLine(HelpText.AutoBuild(cmdOptions, null, null));
return;
}
}
else if (options.MetaStore == MetaStore.DYNAMODB)
{
logger.LogInformation("using DynamoDB-based metastore...");
AWSConfigs.AWSRegion = "us-west-2";
metastorePersistence = DynamoDbMetastorePersistenceImpl.NewBuilder().Build();
}
else
{
logger.LogInformation("using in-memory metastore...");
metastorePersistence = new MemoryPersistenceImpl <JObject>();
}
if (options.Kms == Kms.AWS)
{
if (options.PreferredRegion != null && options.RegionToArnTuples != null)
{
Dictionary <string, string> regionToArnDictionary = new Dictionary <string, string>();
foreach (string regionArnPair in options.RegionToArnTuples)
{
string[] regionArnArray = regionArnPair.Split("=");
regionToArnDictionary.Add(regionArnArray[0], regionArnArray[1]);
}
logger.LogInformation("using AWS KMS...");
keyManagementService = AwsKeyManagementServiceImpl
.NewBuilder(regionToArnDictionary, options.PreferredRegion).Build();
}
else
{
logger.LogError("Preferred region and <region>=<arn> tuples are mandatory with KMS Type: AWS");
Console.WriteLine(HelpText.AutoBuild(cmdOptions, null, null));
return;
}
}
else
{
logger.LogInformation("using static KMS...");
keyManagementService = new StaticKeyManagementServiceImpl("secretmasterkey!");
}
CryptoPolicy cryptoPolicy = BasicExpiringCryptoPolicy
.NewBuilder()
.WithKeyExpirationDays(KeyExpirationDays)
.WithRevokeCheckMinutes(CacheCheckMinutes)
.Build();
// Setup metrics reporters and always include console.
IMetricsBuilder metricsBuilder = new MetricsBuilder()
.Report.ToConsole(consoleOptions => consoleOptions.FlushInterval = TimeSpan.FromSeconds(60));
// CloudWatch metrics generation
if (options.EnableCloudWatch)
{
// Fill in when we open source our App.Metrics cloudwatch reporter separately
}
IMetrics metrics = metricsBuilder.Build();
// Create a session factory for this app. Normally this would be done upon app startup and the
// same factory would be used anytime a new session is needed for a partition (e.g., shopper).
// We've split it out into multiple using blocks to underscore this point.
using (AppEncryptionSessionFactory appEncryptionSessionFactory = AppEncryptionSessionFactory
.NewBuilder("productId", "reference_app")
.WithMetaStorePersistence(metastorePersistence)
.WithCryptoPolicy(cryptoPolicy)
.WithKeyManagementService(keyManagementService)
.WithMetrics(metrics)
.Build())
{
// Now create an actual session for a partition (which in our case is a pretend shopper id). This session is used
// for a transaction and is disposed automatically after use due to the IDisposable implementation.
using (AppEncryption <byte[], byte[]> appEncryptionBytes =
appEncryptionSessionFactory.GetAppEncryptionBytes("shopper123"))
{
const string originalPayloadString = "mysupersecretpayload";
foreach (int i in Enumerable.Range(0, options.Iterations))
{
string dataRowString;
// If we get a DRR as a command line argument, we want to directly decrypt it
if (options.Drr != null)
{
dataRowString = options.Drr;
}
else
{
// Encrypt the payload
byte[] dataRowRecordBytes =
appEncryptionBytes.Encrypt(Encoding.UTF8.GetBytes(originalPayloadString));
// Consider this us "persisting" the DRR
dataRowString = Convert.ToBase64String(dataRowRecordBytes);
}
logger.LogInformation("dataRowRecord as string = {dataRow}", dataRowString);
byte[] newDataRowRecordBytes = Convert.FromBase64String(dataRowString);
// Decrypt the payload
string decryptedPayloadString =
Encoding.UTF8.GetString(appEncryptionBytes.Decrypt(newDataRowRecordBytes));
logger.LogInformation("decryptedPayloadString = {payload}", decryptedPayloadString);
logger.LogInformation("matches = {result}", originalPayloadString.Equals(decryptedPayloadString));
}
}
}
// Force final publish of metrics
await Task.WhenAll(((IMetricsRoot)metrics).ReportRunner.RunAllAsync());
}
