4 To From Merchant Individuals ACH Merchants Merchant

4 To From Merchant Individuals ACH Merchants Merchant Small to Medium Businesses ACH Large Businesses WIRE ACH ACH Government EDI ACH WIRE ACH ACH Most commonly used direct payment choices EDI ACH EDI

8 Anonymity (Ανωνυμία)

23 Untraceable e-Cash (Ανεξιχνίαστα Ηλ. Μετρητά) • Online: ecash, Offline: CAFE ΠΛΗΡΩΜΕΣ Issuer Acquirer sign untraceable Check Issuer’s signature ή Buyer Merchant anonymously

Αρχιτεκτονική Συναλλαγής με Έξυπνη Κάρτα μέσω Web - Γενικά Passcode Smartcard Card Reader PC WEB How Does It Work ? Web Server Firewall Application Server Firewall Data Sources Smartcard Authentication 30

32 Επιταγές Chequebook Presents cheque Payer Cheque Lodges (endorsed) cheque Issues statement Payer’s Bank Verifies availability of funds and debits account Payee Cheque Clearing Payee’s Bank Credits account and forwards cheque for clearing

33 Ηλεκτρονικές Επιταγές – Αρχιτεκτονική (Γενικά) Payer Write Echeck, Sign Payee Verify Signatures, Endorse, Write Deposit, Sign E-Mail or WWW Echeck Endorsed E-Mail Echeck Deposit Clear and Settle Echeck Verify Signatures, Debit Echeck Verify Signatures, Credit Deposit Endorsed Echeck Payer’s Bank Payee’s Bank

34 e. Check signature chaining Root Certificate PUB Bank CA Certificate Checkbook Certificate PUB Payee One Hundred and no/100 s 6/30/98 100. 00 PRIV Invoice # 593281

36 Another echeck application platform…

37 New person-to-person epayment technology Thanks, it was only $5. 50 Hey, let me beam you an echeck for that sandwich you picked up for me

41 Links n www. eurobank. gr n n http: //egnatiasite. egnatiabank. gr/ n n Πληρωμές μέσω τράπεζας (online-banking) (Egnatias bank credit card payment system – Egnatia. Shop) http: //www. verisign. com/products/payment. html n Verisign Payment Pro full n www. combatfraud. org n http: //international. visa. com/ps/products/vcash/ n n (stored-value cards – micropayments) http: //global. mastercard. com/ourcards/smartcard/idemo 1. html n (smartcard demo –mastercard)

42 Links n https: //hsm 2 stl 101. mastercard. net/public/login/ebusiness/smart_cards/one_smart_card/in dex. jsp n n One smart card (master card) www. paypal. com n P 2 P payment n http: //www. echeck. org/library/presentations/index. html n n http: //www. echeck. org/demos/ppt/ECheck_Security_Tut_pp 97 -W. zip n n Σελίδα με tutorials για ηλεκτρονικές επιταγές e. Check security tutorial http: //www. mastercardintl. com/newtechnology/set/demo/ n Demo describing SET technology