Kommunikatsioonimudel
company has no assurance that the person is authorized to make a payment card purchase.
Secure Electronic Transactions (SET)
Designed for payment card transactions over the Internet. Provides security services among 3
players: customer, mercahnt, merchant's bank. All must have certificates. SET specifies legal
meanings of certificates - appointment on liabilities for transactions. Customer's card number
passed to merchant's bank without merchant ever seeing number in plain text - prevent
mercahnts from stealing, leaking payment card numbers. Three software components -
browser wallet, merchant server, acquirer gateway.
46
67. Võrgukihi turvalisus, IPsec
IP pakettidele saab lisada kaht liiki lisapäiseid, AH ehk Authentication Header ja ESP ehk
Encapsulating Security Payload päised, mis tulevad peale IP päist. Esimene neist, AH, on
annaabi.ee 
