Bank cardreader...WTF!
Author
Discussion

tegwin

Original Poster:

1,682 posts

237 months

Friday 15th August 2008
quotequote all
So my bank ...a well known chain that is available Nationwide....Have sent me a card reader thing...looks like a calculator...you put your card in and then it does something..

Does not appear to plug into the PC...

So how does it work? The banks website dont really explain how it works atall...

Does it communicate wirelessly with the mobile phone network or is it simply just a code generator?

Really cant see the point of it...just more crap to make online shopping even harder!

filski666

3,877 posts

223 months

Friday 15th August 2008
quotequote all
I got one of them too - when you want to buy something onthe internet, you put your card in it, type in your pin number and it gives you a security code that you then type into the computer to validate your transaction

bit like the "verified by visa" thing but more secure

although means you have to carry that calculator thing anywhere you want to use internet shopping

Tony*T3

20,911 posts

278 months

Friday 15th August 2008
quotequote all
its a pin security thing. When you go on the net to do internet banking, you have to type in a pin code on the website. Well the 'calculator' generates a one time only pin which you then type into the web browser.

So the number you type changes every time you log on, can only be used once, and is time dependant.

Increased security

Neil_H

15,418 posts

282 months

Friday 15th August 2008
quotequote all
Barclays do them as well. You put card in, type in PIN and it gives you a code which you then put into the website when asked. It's to prevent people accessing you account without the card/ PIN.

Heskey

4,048 posts

224 months

Friday 15th August 2008
quotequote all
Tony*T3 said:
its a pin security thing. When you go on the net to do internet banking, you have to type in a pin code on the website. Well the 'calculator' generates a one time only pin which you then type into the web browser.

So the number you type changes every time you log on, can only be used once, and is time dependant.

Increased security
How is the PC linked to requesting the code that shows up on a non-connected device?

And if it works from a pool of valid codes; why not just note down one and use that as a 'super long PIN'?

filski666

3,877 posts

223 months

Friday 15th August 2008
quotequote all
Heskey said:
Tony*T3 said:
its a pin security thing. When you go on the net to do internet banking, you have to type in a pin code on the website. Well the 'calculator' generates a one time only pin which you then type into the web browser.

So the number you type changes every time you log on, can only be used once, and is time dependant.

Increased security
How is the PC linked to requesting the code that shows up on a non-connected device?

And if it works from a pool of valid codes; why not just note down one and use that as a 'super long PIN'?
it is the same as the little ones HSBC do for Business Banking accounts - except it is linked to your card.

Scraggles

7,619 posts

255 months

Friday 15th August 2008
quotequote all
great until you lose it under the paperwork frown

tegwin

Original Poster:

1,682 posts

237 months

Friday 15th August 2008
quotequote all
Heskey......exactly my thought....

fadeaway

1,463 posts

257 months

Friday 15th August 2008
quotequote all
Sounds like it's a "code generator". If so, then it's a very secure way of confirming online transactions - way more secure than "Verified by Visa".

It won't communicate or connect to anything else. You'll enter your PIN, and it will then give you a code. The clever bit is that only two systems can generate that particular code - your little electronic gizmo and the banks own computer, and each code is valid for a very short period of time (maybe a minute). So the bank can therefore confirm that it's genuinally you making the transaction. And if someone finds out the code it doesn't really matter, as 60 seconds later it's expired.

off_again

13,917 posts

265 months

Friday 15th August 2008
quotequote all
tegwin said:
Does it communicate wirelessly with the mobile phone network or is it simply just a code generator?

Really cant see the point of it...just more crap to make online shopping even harder!
hehe

A few of the banks in the UK use it, but you will find that quite a few in Europe do ths same thing. Its a tried and trusted technology and works extremely well.

Basically its an interface to the card itself that forces you to use the PIN for the card itself. Only when you use the correct PIN can you returning code from the reader and then carry out the transaction. Please note that this is not for on-line shopping but for access to the on-line bank and to confirm transactions.

Natwest are a heavy user of this technology and you can just use your bank card without a problem. If you want to transfer money from accounts though, you need the reader and the card and then tap in the PIN. This gives you a code which you can type into the web application and its all OK.

All works well and is based on a one-time-password algorithm system that is synchronised with the bank itself. There is no need to communicate with the PC or mobile phone - in fact its better to NOT communicate with the PC as this is not guaranteed. It just reads the card and interacts with it...

Don't worry - its a good system.

Podie

46,649 posts

306 months

Friday 15th August 2008
quotequote all
tegwin said:
So my bank ...a well known chain that is available Nationwide....Have sent me a card reader thing...looks like a calculator...you put your card in and then it does something..

Does not appear to plug into the PC...

So how does it work? The banks website dont really explain how it works atall...

Does it communicate wirelessly with the mobile phone network or is it simply just a code generator?

Really cant see the point of it...just more crap to make online shopping even harder!
RTFM...?

dan1981

18,124 posts

230 months

Friday 15th August 2008
quotequote all
fadeaway said:
Sounds like it's a "code generator". If so, then it's a very secure way of confirming online transactions - way more secure than "Verified by Visa".

It won't communicate or connect to anything else. You'll enter your PIN, and it will then give you a code. The clever bit is that only two systems can generate that particular code - your little electronic gizmo and the banks own computer, and each code is valid for a very short period of time (maybe a minute). So the bank can therefore confirm that it's genuinally you making the transaction. And if someone finds out the code it doesn't really matter, as 60 seconds later it's expired.
but how does it "work?"

if it doesn't communicate with anythign how does it know that the code is correct and everything?

I've got one for natwest and whilst a pain in the arse i can see its a good idea. But i'm buggered if i know how it works

DrTre

12,957 posts

263 months

Friday 15th August 2008
quotequote all
Algorithm connected to a pre-calibrated timing chip in the calc thingy (with the same calibration on the server) isn't it?

Calc "knows" same time as bank server and therefore they both "know" the same code at that point in time.

Or something along those lines

ETA off_again says the same and sounds professional.

Edited by DrTre on Friday 15th August 09:59

Heskey

4,048 posts

224 months

Friday 15th August 2008
quotequote all
So what you mean is...

The website will accept ANY code, but the codes are generated by your card being entered and logged, so that they can varify that your card generated that code?

2 flaws: How does the bank know you generated the code if the device is unconnected

And if the website accepts any code, what's stopping people bashing in random numbers?

dan1981

18,124 posts

230 months

Friday 15th August 2008
quotequote all
DrTre said:
Algorithm connected to a pre-calibrated timing chip (with the same calibration on the server) isn't it?

Calc "knows" same time as bank server and therefore they both "know" the same code at that point in time.

Or something along those lines

Edited by DrTre on Friday 15th August 09:57
wow. that 'sounds' expensive - no idea if it is? i guess not seeing as they're giving everyone one.

Heskey

4,048 posts

224 months

Friday 15th August 2008
quotequote all
DrTre said:
Calc "knows" same time as bank server and therefore they both "know" the same code at that point in time.

Or something along those lines


Edited by DrTre on Friday 15th August 09:58
How does it "know" if it's basically a glorified calculator? My calculator saying 2 + 2 = 4 doesn't know I'm putting 2 + 2 = 30 on the computer?

172ff

3,777 posts

226 months

Friday 15th August 2008
quotequote all
Heskey said:
So what you mean is...

The website will accept ANY code, but the codes are generated by your card being entered and logged, so that they can varify that your card generated that code?

2 flaws: How does the bank know you generated the code if the device is unconnected

And if the website accepts any code, what's stopping people bashing in random numbers?
I think the banks would have thought of this before big man.

tegwin

Original Poster:

1,682 posts

237 months

Friday 15th August 2008
quotequote all
Dont banks loose like GBP1.2Bn every year?....so issuing expensive technology to combat this is not really an issue...If it is using time synchronus coding....the technology is not really that expensive....

bazking69

8,620 posts

221 months

Friday 15th August 2008
quotequote all
Natwest sent me one too. I haven't even read how to use it yet...

DrTre

12,957 posts

263 months

Friday 15th August 2008
quotequote all
Heskey said:
How does it "know" if it's basically a glorified calculator? My calculator saying 2 + 2 = 4 doesn't know I'm putting 2 + 2 = 30 on the computer?
It "knows" because it is preprogrammed to know.

ETA More accurately it is preprogrammed to generate the same code as the server does for any given input of "time" value.



Edited by DrTre on Friday 15th August 10:03