CODE EXAMPLE FOR CSHARP

unity create random string

    string RandomStringGenerator(int lenght)
    {
        string characters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
        string generated_string = "";

        for(int i = 0; i < lenght; i++)
            generated_string += characters[Random.Range(0, lenght)];

        return generated_string;
    }