NLD ID optional data hash

[try2benice]

The netherlands ID (TD1) has optional data. at line 1 position 30 there is a hash number. Is there any chance for me to change the script of TD1 for another hash at line 1 pos 30?

[Arg0s1080]

Hi

Yes, it's right.

That field is entirely at the discretion of the issuing state, so it's not a special case.

You do not provide any sample, but if the hash used is calculated with the same algorithm that ICAO uses, solution is very simple:

A very simple function:

def od_nld(optional_data):
    from mrz.base.functions import hash_string
    value = optional_data.ljust(14, "<")
    return "%s%s" % (value, hash_string(value))

Now, let's use it with a TD1:

from mrz.generator.td1 import TD1CodeGenerator, hash_string

def od_nld(optional_data):
    value = optional_data.ljust(14, "<")
    return "%s%s" % (value, hash_string(value))

print(TD1CodeGenerator("I",              # Document type   Normally 'I' or 'ID' for id cards
                       "NLD",            # Country         3 letters code or country name
                       "59000002",       # Document number Special characters will be transliterated
                       "870314",         # Birth date      YYMMDD
                       "M",              # Genre           Male: 'M', Female: 'F' or Undefined 'X'
                       "170102",         # Expiry date     YYMMDD
                       "Netherlands",    # Nationality
                       "SPECIMEN",       # Surname         Special characters will be transliterated
                       "SVEN",           # Given name(s)   Special characters will be transliterated
                       od_nld("try2benice")))  # Optional data1

And Voila!....

I<NLD59000002<8TRY2BENICE<<<<4
8703145M1701027NLD<<<<<<<<<<<0
SPECIMEN<<SVEN<<<<<<<<<<<<<<<<

...Solution without modifying anything

BR

[try2benice]

Thanks! I didn't expect any answer this fast. I appreciate it. It solved my problem.