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Authorization identification response 39: an 2: Response code 40: an 3: Service restriction code 41: ans 8: Card acceptor terminal identification 42: ans 15: Card acceptor identification code 43: ans 40: Card acceptor name/location (1–25 card acceptor name or automated teller machine (ATM) location, 26-38 city name, 39-40 country code) 44: an ...
Following a request from a merchant for an address verification, the credit card processor sends an AVS response code back to the merchant indicating the degree of address matching. The meaning of the codes vary between credit card processors. Merchants can use the AVS code to determine whether to accept or reject a credit card transaction.
There are several types of security codes and PVV (all generated from DES key in the bank in HSM modules using PAN, expiration date and service code): . The first code, 3 numbers, called CVC1 or CVV1, is encoded on track one and two of the magnetic stripe of the card and used for card present transactions, with signature (second track also contains pin verification value, PVV, but now it is ...
3-D Secure is a protocol designed to be an additional security layer for online credit and debit card transactions. The name refers to the "three domains" which interact using the protocol: the merchant/acquirer domain, the issuer domain, and the interoperability domain.
CDOL2 (Card data object list) contains a list of tags that the card wanted to be sent after online transaction authorisation (response code, ARPC, etc.). Even if for any reason the terminal could not go online (e.g., communication failure), the terminal should send this data to the card again using the generate authorisation cryptogram command.
Level 1 – Over six million transactions annually; Level 2 – Between one and six million transactions; Level 3 – Between 20,000 and one million transactions, and all e-commerce merchants; Level 4 – Less than 20,000 transactions; Each card issuer maintains a table of compliance levels and a table for service providers. [12] [13]
The TVR is a series of bits set by the terminal reading an EMV card, based on logical tests (for example has the card expired). This data object is used in the terminal's decision whether to accept, decline or go on-line for a payment transaction. The format of the TVR is as follows: [2] [3]
The Internet Assigned Numbers Authority (IANA) maintains the official registry of HTTP status codes. [2] All HTTP response status codes are separated into five classes or categories. The first digit of the status code defines the class of response, while the last two digits do not have any classifying or categorization role.