Question

Python Programming:

Write a RegEx that validates social security numbers

Answer 1

There a very simple module in python that can match given input with a regex pattern.

For a Social Security Number to be valid, it must satisfy the following constraints:

1. It should be divided into 3 parts by a hyphen (-).
2. It should 9 digits in length.
3. The first part must consist of 3 digits and should not be 000, 666, or between 900 and 999.
4. The second part must consist of 2 digits and it should be from 01 to 99.
5. The third part must consist of 4 digits and it should be from 0001 to 9999.

import re

data = input("Enter your social security number")

print(data)

pattern = "^(?!666|000|9\\d{2})\\d{3}-(?!00)\\d{2}-(?!0{4})\\d{4}$"

if (re.match(pattern,data)):
    print("The SSN is valid")
else:
    print("The SSN is invalid")