public async Task <byte[]> EncryptAsync(EncryptionKey key)
{
using var destinationMs = new MemoryStream();
using var sourceMs = new MemoryStream(key.Serialize());
await StaticEncryptor.EncryptAsync(sourceMs, destinationMs, _key).ConfigureAwait(false);
return(destinationMs.ToArray());
}
public async Task <byte[]> EncryptAsync(EncryptionKey key)
{
using var destinationMs = new MemoryStream();
using var sourceMs = new MemoryStream(key.Serialize());
//we need to generate another IV to avoid encrypting always with the very same value.
await StaticEncryptor.EncryptAsync(sourceMs, destinationMs, _key).ConfigureAwait(false);
return(destinationMs.ToArray());
}
public FolderBasedKeyValueStore(
string keyMaterialFolderStore,
string password)
{
InternalUtils.EnsureDirectory(keyMaterialFolderStore);
var keyName = Path.Combine(keyMaterialFolderStore, "1.key");
if (!File.Exists(keyName))
{
//create the first key
_key = EncryptionKey.CreateDefault();
var serializedKey = _key.Serialize();
var encryptedSerializedKey = StaticEncryptor.AesEncryptWithPasswordAsync(serializedKey, password).Result;
File.WriteAllBytes(keyName, encryptedSerializedKey);
}
else
{
var encryptedSerializedKey = File.ReadAllBytes(keyName);
var serializedKey = StaticEncryptor.AesDecryptWithPasswordAsync(encryptedSerializedKey, password).Result;
_key = EncryptionKey.CreateFromSerializedVersion(serializedKey);
}
}