I am making a web site which can be considered similar to Reddit in some ways. I need to implement a sign up form so I will store informations about the users. My idea is to store the username, password, email address, and if they want also the gender, birthday and country. There are many SSL certificates, from free to expensive ones, in my case what are the characteristics that my certificate must have?
I am not looking to spend a lot of money and if it makes any difference in the cost of the certificate I could store only the username, password and email address.
Could a free StartSSL certificate be enough? Or what about a RapidSSL certificate 49$?