Payment Glossary

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322 payment terms explained in a sentence or two, from acquirer to ZPK, each linked to the lesson that explains it.

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322 terms

# 3-D Secure

A Access control server · Account selection · Account verification · Acquirer · Action code · Advice · AES · AES DUKPT · AID · Application cryptogram · Approval code · ARPC · ARQC · ASCII · Atalla variant · ATC · ATM · ATM host · Authorisation hold · Authorised state

B Balance inquiry · Base derivation key · Base64 · Batch · Batch close · Batch upload · BCD · Big-endian · BIN · Bitmap · Block cipher · Boundary test · Brand certification

C CA public key index · Card master key · Card network · Card retention · Card verification key · Card-not-present · Card-on-file · Cardholder · Cardholder billing currency · Cardholder data · Cash advance · Cash balancing · Cashback · Cassette · CAVV · CBC · CBC-MAC · Certificate · Certificate authority · Chargeback · Check digit · Checksum · Clearing · CMAC · CMS · Collision · Completion · Control vector · Conversion rate field · Country code · CRC · Credit card · Cryptoperiod · Currency code · Cutover · CVM · CVV · CVV2

D Data element · DCC markup · Debit card · Decimalisation table · Deposit · Derivation data · DES · Digest · Digital signature · Directory server · Discretionary data · Dispense · Dispute · Double-length key · Dual control · Dual message system · DUKPT · Duplicate detection · Dynamic currency conversion · Dynamic CVV

E EBCDIC · ECB · Echo test · ECI · ECR · Electronic journal · EMV · EMV QR · Expiry date · Exportability

F Fallback · Field 55 · Field 64 · Field separator · FIPS 140 · Floor limit · Format error · Four-party model · Framing · Frictionless flow · Future keys

H Hash function · Hexadecimal · HMAC · Host command · Host simulator · HSM

I IBM 3624 offset · iCVV · Incorrect PIN · Incremental authorisation · Initial key · Initial key ID · Initialisation vector · Interchange fee · Intermediate derivation key · ISO 20022 · ISO 8583 · ISO format 0 · ISO format 1 · ISO format 2 · ISO format 3 · ISO format 4 · Issuer · Issuer application data · Issuer master key · Issuer unavailable

J Justification

K KCV mismatch · Keep-alive · Kernel · Key block header · Key block protection key · Key block version · Key ceremony · Key check value · Key component · Key custodian · Key distribution host · Key encryption key · Key hierarchy · Key injection facility · Key loading device · Key receiving device · Key separation · Key set identifier · Key usage · Key variant · Known-answer test · KSN

L Late response · Length header · Liability shift · LLVAR · Local master key · LRC · Luhn check digit

M MAC · MAC failure · MAC truncation · Magnetic stripe · Masking · Master/session · MCC · Merchant · Merchant discount rate · Merchant ID · Message matching · Minor unit · Mode of use · Modulus · mPOS · MTI · Multi-currency pricing

N Natural PIN · Negative test · Net settlement · Network currency conversion · Network management message · Network token · Nibble · Non-reversible key generation · Note mix

O Odd parity · Offline data authentication · Offline PIN · Offline sale · On-us · Online PIN · Open-to-buy · Optional block · Original data elements

P P2PE · Padding · PAN · PAN sequence number · Parameter download · Parity adjustment · Parity bit · Partial approval · Partial dispense · Payment facilitator · Payment gateway · PCI DSS · PCI HSM · PCI PIN · PCI PTS · PCI scope · PIN block · PIN change · PIN entry device · PIN translation · PIN variant · PIN verification · PIN verification key · PKI · POS condition code · POS entry mode · POS terminal · Pre-authorisation · Prepaid card · Private key · Processing code · Processor · Public exponent · Public key · Purchase · PVKI · PVV

R Receipt · Reference rate · Refund · Regional debit network · Regression test · Remote key loading · Repeat message · Replacement amounts · Representment · Response code · Retail MAC · Retract · Retrieval request · Reversal · Rocksoft model · Root cause · RRN · RSA

S Salt · Secondary bitmap · Secure cryptographic device · Semi-integrated · Sensitive authentication data · Sentinel · Service code · Session key · Settlement · SHA-1 · SHA-2 · Sign-on · Single message system · SoftPOS · Solicited status · Split knowledge · STAN · Stand-in processing · State table · Store and forward · STX / ETX · Supervisor mode · Surcharge · Switch · Symmetric key · Symptom

T Tamper response · Tamper-evident bag · TC / AAC · Terminal ID · Terminal management system · Terminal master key · Terminal PIN key · Test card · Three-party model · Timeout · Timeout reversal · Tip adjustment · TLV · Token cryptogram · TPDU · TR-31 key block · TR-34 · Track 1 · Track 2 · Track 2 equivalent data · Transaction counter · Transaction reply · Transaction request · Transfer · Triple DES · Triple-length key · Truncation · TVR

U Unattended terminal · Unpredictable number

V Variant mask · Void

W Weak key · Working key

X XOR

Z Zone master key · Zone PIN key

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