/// <summary>Get timestamp token - communications layer</summary>
/// <returns>- byte[] - TSA response, raw bytes (RFC 3161 encoded)</returns>
/// <exception cref="System.IO.IOException"/>
protected internal virtual byte[] GetTSAResponse(byte[] requestBytes)
{
// Setup the TSA connection
SignUtils.TsaResponse response = SignUtils.GetTsaResponseForUserRequest(tsaURL, requestBytes, tsaUsername,
tsaPassword);
// Get TSA response as a byte array
Stream inp = response.tsaResponseStream;
MemoryStream baos = new MemoryStream();
byte[] buffer = new byte[1024];
int bytesRead = 0;
while ((bytesRead = inp.JRead(buffer, 0, buffer.Length)) >= 0)
{
baos.Write(buffer, 0, bytesRead);
}
byte[] respBytes = baos.ToArray();
if (response.encoding != null && response.encoding.ToLower(System.Globalization.CultureInfo.InvariantCulture
).Equals("base64".ToLower(System.Globalization.CultureInfo.InvariantCulture)))
{
respBytes = System.Convert.FromBase64String(iText.IO.Util.JavaUtil.GetStringForBytes(respBytes, "US-ASCII"
));
}
return(respBytes);
}