Password hash in RDP files

[Remko]

Thanks Maribu. I did see the functions in the Help but decided not to use them because of this note in the help:
Note:
The hexadecimal number must use lower-case characters; HexToBind does not recognize upper-case characters.

Using shr brings back an old discussion:
Warning Only use Shr when a bit operation is required - do not use instead of a multiplication or division. First because it is unclear as to what is happening. Secondly, bits may be lost in the operation.

Warning The compiler will reject hardcoded shift right values that exceed 32, unless the data type is Int64. The same is not true for Shl.

Still your code looks efficient, so I'm going to test.

Is it bad practice to have the function return a structure (DATA_BLOB)? Would it be better to use is as a var param?