public static byte[] ComputeHash(byte[] userContextIdBinary, byte[] timestampBinary, string logOnUniqueKey, out long keyIndex, out int segmentIndex)
{
long ticks = BitConverter.ToInt64(timestampBinary, 0);
byte[] array;
if (Canary15DataManager.GetEntry(ticks, out array, out keyIndex, out segmentIndex))
{
byte[] bytes = new UnicodeEncoding().GetBytes(logOnUniqueKey);
int num = userContextIdBinary.Length + timestampBinary.Length + bytes.Length;
num += array.Length;
byte[] array2 = new byte[num];
int num2 = 0;
userContextIdBinary.CopyTo(array2, num2);
num2 += userContextIdBinary.Length;
timestampBinary.CopyTo(array2, num2);
num2 += timestampBinary.Length;
bytes.CopyTo(array2, num2);
num2 += bytes.Length;
array.CopyTo(array2, num2);
byte[] result;
using (SHA256Cng sha256Cng = new SHA256Cng())
{
result = sha256Cng.ComputeHash(array2);
sha256Cng.Clear();
}
return(result);
}
return(null);
}
