CRYPTOMATHIC BLOG

 

4 Corners Model

Cardholder, Merchant, Issuer & Acquirer - The Four Corners Model for Payment Security and Key Management

4 min read

The Four Corners Model for Card Payment Security and Key Management

The “Four Corners” model, also called the “Four Party Scheme”, is utilized in almost all standard card payment systems across the globe. Here, we...

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EMV Payment Security - Acquirers

4 min read

EMV Payment Security - Acquirers

In the “four corner model”, acquirers are apparently the less active party as their role seems ‘only’ to forward the transaction flow originating...

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EMV Payment Security - Merchants

3 min read

EMV Payment Security - Merchants

Merchants are one of the corners of the ‘four corner’ model in the payment world. In what follows, we will explain some of the security mechanisms...

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EMV Payment Security - Issuers

3 min read

EMV Payment Security - Issuers

An issuer is one of the corners in the ‘four corner’ model. An issuer is a financial organization (e.g. a bank) that produces payment cards and...

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Payment Security - Cardholders

4 min read

EMV Payment Security - Cardholders

Cardholders (or consumers) are one of the corners of the ‘four corner’ model in the payment card world. Here we take a brief look at the payment...

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