private static void HandleEncrypt(Argument arg)
{
var isEncrypting = arg.arg == "--encrypt";
var alg = arg.GetParaOrThrow(0);
var key = arg.GetParaOrThrow(1);
var inputFile = arg.GetParaOrNull(2);
var outputFile = arg.GetParaOrNull(3) ?? (inputFile != null ? inputFile + ".enc" : null);
var input = inputFile.IsNullOrEmpty() ? Console.OpenStandardInput() : File.OpenRead(inputFile);
var output = outputFile.IsNullOrEmpty() ? Console.OpenStandardOutput() : File.Open(outputFile, FileMode.Create);
var encryptStreamFunc = Ss.GetCipherByName(alg).GetEncryptionStreamFunc(key);
IMyStream from, to;
if (isEncrypting)
{
from = MyStream.FromStream(input);
to = encryptStreamFunc(MyStream.FromStream(output));
}
else
{
from = encryptStreamFunc(MyStream.FromStream(input));
to = MyStream.FromStream(output);
}
Task.Run(async() => {
await MyStream.StreamCopy(from, to, -1, true);
await output.FlushAsync();
output.Dispose();
}).Wait();
}
