public async Task CopyToAsync(Stream outputStream, CancellationToken cancellationToken = default)
{
cancellationToken.ThrowIfCancellationRequested();
using (var armoredStream = ArmoredOutputStream(outputStream))
using (var encryptedStream = EncryptionStream(armoredStream))
using (var compressedStream = CompressionStream(encryptedStream))
{
var signatureGenerator = InitSignature(compressedStream);
using (var inputStream = await _file.OpenReadStreamAsync(cancellationToken))
using (var literalData = new PgpLiteralDataGenerator().Open(compressedStream, PgpLiteralData.Binary, FileName, DateTime.UtcNow, new byte[1 << 16]))
{
var length = 0;
var buf = new byte[1 << 16];
while ((length = await inputStream.ReadAsync(buf, 0, buf.Length)) > 0)
{
await literalData.WriteAsync(buf, 0, length);
signatureGenerator?.Update(buf, 0, length);
}
signatureGenerator?.Generate()?.Encode(compressedStream);
}
}
}
