public String SHA512CheckSum(string input_file)
{
if (!File.Exists(@input_file))
{
return(String.Empty);
}
SHA512 sha = SHA512.Create();
StringBuilder sb = new StringBuilder();
try
{
FileStream input_f = File.OpenRead(input_file);
byte[] out_bytes = sha.ComputeHash(input_f);
foreach (byte o in out_bytes)
{
sb.Append(o.ToString("x2"));
}
sha.Clear();
input_f.Close();
}
catch { return(String.Empty); }
return(sb.ToString());
}
public void Dispose()
{
_sha512.Clear();
_sha512.Dispose();
}