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A credit cardis an array of data that include the name of the cardholder the security code of account and most importantly the expiration date. The process of confirming the authenticity of the credit card is known by the name of validation for credit cards. This procedure has an important importance, since monitory transactions are generally considered to be sensitive. There is a broad range of algorithms created by various finance firms to verify the authenticity of a credit card. When used correctly, these algorithms can allow you to know the authenticity of a credit card and determine if it is authentic or not.