[scabbage]

Hi, guys,

I have this idea for building a website. However, I have encountered a very difficult problem. I was wondering if it is possible to do user authentication without using registration/login. Basically, I need a way to verify that the person is really what they claim to be. Right now, the only way I could think of is using one's cellphone number + last 4 of their SSN. However, could anyone tell me if this type of information could possible be available for commercial use? Thanks.

[johnyB_24]

I don't believe that anyones phone number can be used for commercial purposes without his/her authorization.I think you should think of another way to check user identity

[hillbillybob]

Ya, that, and it is a federal offense to use a persons SSN for any sort of identification.

umm...Seeded card algorithim?

[scabbage]

Originally posted by hillbillybob
Ya, that, and it is a federal offense to use a persons SSN for any sort of identification.

umm...Seeded card algorithim?

So what is seeded card algorithm? The basic function I'm thinking of for my website is: person A knows person B by name and cellphone #; A writes something for B, e.g. "I love u" (message + B's phone number + B's name) without letting B know about it until B checks the website (by punching in A's phone number and name). This seems very difficult to achieve without an authentication system. Any idea?