This ID is refers to digestedData and hashedData.

http://msdn.microsoft.com/en-us/library/windows/desktop/aa381133(v=vs.85).aspx

Change-Id: I2b9585332e27fad860aee458ef3183a9772e9c3f
Reviewed-on: https://gerrit.libreoffice.org/2403Reviewed-by: Fridrich Strba <fridrich@documentfoundation.org>
Tested-by: Fridrich Strba <fridrich@documentfoundation.org>