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ISO/IEC 7813 is an international standard codified by the International Organization for Standardization and International Electrotechnical Commission that defines properties of financial transaction cards, such as ATM or credit cards. [1]
The standard defines:[ citation needed ]
ISO/IEC 7813 specifies the following physical characteristics of the card, mostly by reference to other standards:[ citation needed ]
Track 1 can store up to 79 alphanumeric characters. ISO 7813 specifies the following structure for track 1 data: [2]
%B4815881002867896^YATES/EUGENE JOHN ^37829821000123456789?
%B4815881002861896^YATES/EUGENE L ^^^356858 00998000000?
Track 2 can store up to 40 numeric or special characters; it uses a lower density magnetic encoding than Track 1 but a more compact character encoding. ISO 7813 specifies the following structure for track 2 data: [2]
Track 3 uses the same density as track 1 but has the same character encoding as track 2, allowing it to store 107 numeric characters. [2] It is virtually unused by the major worldwide networks and often isn't present on payment cards.[ citation needed ]
A notable exception to this is Germany, where Track 3 content was used nationally as the primary source of authorization and clearing information for debit card processing prior to the adoption of the "SECCOS" ICC standards. Track 3 is standardized nationally to contain both the cardholder's bank account number and branch sort code (BLZ).[ citation needed ]
Parsing Track 1 and Track 2 can be done with Regular Expressions.
^%B([0-9]{1,19})\^([^\^]{2,26})\^([0-9]{4}|\^)([0-9]{3}|\^)([^\?]*)\?$
This Regex will capture all of the important fields into the following groups:[ citation needed ]
^\;([0-9]{1,19})\=([0-9]{4}|\=)([0-9]{3}|\=)([^\?]*)\?$
COBOL is a compiled English-like computer programming language designed for business use. It is an imperative, procedural and, since 2002, object-oriented language. COBOL is primarily used in business, finance, and administrative systems for companies and governments. COBOL is still widely used in applications deployed on mainframe computers, such as large-scale batch and transaction processing jobs. Many large financial institutions were developing new systems in the language as late as 2006, but most programming in COBOL today is purely to maintain existing applications. Programs are being moved to new platforms, rewritten in modern languages or replaced with other software.
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ISO/IEC 14443Identification cards -- Contactless integrated circuit cards -- Proximity cards is an international standard that defines proximity cards used for identification, and the transmission protocols for communicating with it.
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An Answer To Reset (ATR) is a message output by a contact Smart Card conforming to ISO/IEC 7816 standards, following electrical reset of the card's chip by a card reader. The ATR conveys information about the communication parameters proposed by the card, and the card's nature and state.
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