Track 2

Oct 13, 2007 Last reply: 18 years ago 3 Replies

Hi guy,



I've a doubt: I read around the Internet that Track2 of Credit Card are made up of 40 character (see here

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Now I've a smart card reader and I'm reading my cards but the Start sentinel, End Sentinel and LRC characters are not displayed/readed.



So I'm asking if they are truly written in the card?



Yes, The start and stop sentinels are written. The circuitry within the reader looks for them. They are usually non printing characters like Chr$(12) or Chr$(13). Some security card readers even use non- standard sentinels just to protect the integrity of the system.

And the LRC are also written on the card?

"harkawy" snipped-for-privacy@rabbitsoft.us ha scritto nel messaggio news: snipped-for-privacy@y27g2000pre.googlegroups.com...

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