ZA_ID 1.2.3

South African ID Number Utils

A South African ID number is a 13-digit number which is defined by the following format: YYMMDDSSSSCAZ.

• The first 6 digits (YYMMDD) are based on your date of birth. For example, 20 February 1992 is displayed as 920220.
• The next 4 digits (SSSS) are used to define your gender. Females are assigned numbers in the range 0000-4999 and males from 5000-9999.
• The next digit (C) shows if you're an SA citizen status with 0 denoting that you were born a SA citizen and 1 denoting that you're a permanent resident.
• The next digit (A) was used until the late 1980s to indicate a person’s race. This has been eliminated, and old ID numbers were reissued to remove this.
• The last digit (Z) is a checksum digit – used to check that the number sequence is accurate using a set formula called the Luhn algorithm.

Genetate ID number

	public string GenerateIDNumber(DateTime birthday, 				
		Gender gender, 
		bool isCitizen = true, 
		Race race = Race.Default)

Validate ID number

	public bool GetIsIDNumberValid(string idString)