Can I generate a 6-Digit random number based on two numbers?

Question

I have two numbers:

1. IMEI Number : 12345678912345
2. Random Pin : 654321

My Random pin changes always. Based on this combination (IMEI and PIN ) is there any way to generate a 6 digit random number?

I want to do it in C#.

Answer 1

How about (IMEI + Pin) % 900000 + 100000?

Answer 2

The most straightforward way is to seed the random number generator with a function of both numbers

Random r = new Random(IMEA+Pin);
int v = r.Next()%900000 + 100000;

in this example the function is just the sum but you can find something more senseful for sure.. it's just to give you the idea.

Answer 3

Fixed version of Jack's answer

int seed = unchecked((int)(imie+pin));
Random r = new Random(seed);
int[] result = new int[100];
for (int i = 0; i < 100; i++) {
    result[i] = r.Next() % 900000 + 100000;
}

edit fixed answer as per the sudden revelation that you need 100 numbers