Someone explain how a pin sentry works please....

BringTheRain

BringTheRain

BringTheRain

Soldato
Joined
3 Jan 2009
Posts
5,593
Location
Bedfordshire
OK so for a few days I have been trying to work this out.

What I want to know is HOW does my online banking know I haven't made up an 8 digit code.

I took one apart and it just looks like a calculator.

Are the codes already installed in it....?

I went into Barclays and asked, and her response was magic and lol.

Wasn't impressed with the answer tbh!

So explain how it works. Theory's are ok, as well general **** taking.

BTR
 
Dabbles said:
Cryptography. You have to put your card in and a code and then it spits out a number having been through an algorithm. This result is input online and the banks server compares the number to its result from the same inputs, et viola!
Click to expand...

Thanks for killing my thread JOKE! Is that really how it works?

Coz if it is, i am going to go into barclays and tell her!
 
ecksmen said:
What I want to know, is that does these "Calcs" have the power to kill a card (three incorrect pin guesses). Doesn't it give someone (ok in theory) who has the "calc" unlimited chances of guessing the pin with no recourse?

I have one, but I'm not wanting to test if it adds a flag to the chip.
Click to expand...

I got a business card through, which i aint goning to use. Just need to find it and try this theory!!!!!
 
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