I think you should never give and never trust important data to user. Don't put any information about customer credit balance because customer can change their credit balance if he/she has card writer. IMHO you just save customer code or customer GUID in the card, but in encrypted format.
*Easy to say in Bahasa Indonesia, but hard to say in English.... On 2/24/10, val4free <[email protected]> wrote: > First of all I"m really sorry about miss understanding of my question, > actually what I mean is I wanna save my customer data to a magnetic card > that I can use for my store, so they can buy without pay, just like a credit > card . the card also save all transaction and how much money still have. I > hope there still any one that can help my case. > Regards > > > > > ------------------------------------ > > ----------------------------------------------------- > Home page: http://groups.yahoo.com/group/delphi-en/ > To unsubscribe: [email protected]! Groups Links > > > > -- "Sabbe Satta Bhavantu Sukhitatta - Semoga Semua Makhluk Hidup Berbahagia" Se Hai Ce Nei, Kai Siung Ti Ye - Di Empat Penjuru Lautan, Kita Semua Bersaudara Ko Ko Cay Siang - Yang Tinggi Masih Ada Pula Yang Melebihi Oleh Karena Itu Jangan Takabur, Jumawa, dan Terlalu Berbangga Diri Niksen - 782 (nomor buntut 702) members of KORMOT COMMUNITY KC #008 D 5470 WQ
