public void EncryptToStream <T>(T obj, Stream stream, string password)
{
stream.Seek(0, SeekOrigin.Begin);
var keyBytes = GetRestructuredKeyBytes(password);
// Generate new IV for each new saving
using var aesObj = Aes.Create();
var ivBytes = aesObj.IV;
// Get copy and serialize
var jsonText = JsonSerializer.Serialize(obj);
var encryptedBytes = AesCryptographyHelper.EncryptStringToBytes(jsonText, keyBytes, ivBytes);
using var bw = new BinaryWriter(stream);
bw.Write(ivBytes);
bw.Write(encryptedBytes);
}
public T DecryptFromStream <T>(Stream stream, string password)
{
stream.Seek(0, SeekOrigin.Begin);
var br = new BinaryReader(stream);
var ivLength = AesCryptographyHelper.IVLength;
var ivBytes = new byte[ivLength];
br.Read(ivBytes);
var encryptedBytes = new byte[stream.Length - ivLength];
br.Read(encryptedBytes);
// During loading, it's required to set key bytes for future
var keyBytes = GetRestructuredKeyBytes(password);
var jsonText = AesCryptographyHelper.DecryptStringFromBytes(encryptedBytes, keyBytes, ivBytes);
return(JsonSerializer.Deserialize <T>(jsonText));
}