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TLS

The Transport Layer Security (TLS) Protocol v1.2

The Transport Layer Security (TLS) protocol provides communications security over the Internet. The protocol allows client/server applications to communicate in a way that is designed to prevent eavesdropping, tampering, or message forgery. 1. Introduction The primary goal of the TLS protocol is to provide privacy and data integrity between two communicating applications. The protocol is composed …

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ISO PIN Block Formats

ISO 9564 is an international standard for personal identification number (PIN) management and security in retail banking. The PIN is used to verify the identity of a customer (the user of a bank card) within an electronic funds transfer system, and (typically) to authorise the transfer of funds, so it …

Dynamic Data Authentication (DDA)

Dynamic Data Authentication (DDA) is a more securer way of authentication because it authenticates the card itself. After the authentication we can trust on the uniqueness of the card. Contrast between SDA and DDA SDA guarantees that data on cards is valid because we trust a high level certification authority …

Static Data Authentication (SDA)

SDA ensures the authenticity of ICC data. After SDA it is sure that the data from the ICC is real and hasn’t changed by anyone. However SDA doesn’t assure the uniqueness of ICC data. SDA is a digital signature scheme working with asymmetric cryptograhpy. Asymmetric cryptography uses a pair of keys. …

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ISO 3166 Country Codes

ISO 3166 country codes are used in EMV cards within C8 (CRM Country Code) and 9F1A (Terminal Country Code) tags. Country                                          A 2 A 3 Country Code AALAND ISLANDS AX ALA 248 AFGHANISTAN AF AFG 4 ALBANIA AL ALB 8 ALGERIA DZ DZA 12 AMERICAN SAMOA AS ASM 16 ANDORRA …

EMV

What is EMV?

EMV Integrated Circuit Card (IC card) Specifications are an international, credit card industry standard for chip based debit and credit cards. The Specifications are consistent with the ISO 7816 series of standards for IC cards, also called “chip cards”, “integrated circuit cards” or “smart cards”. In Europe, primarily the UK, …