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Hi Jesús Manuel,
Whether is an authentication needed or not depends on the parameters of the application where the file in bundled. In a case where you have to check very fast whether an access is granted or not, you would omit the authentication. For instance in an access system.
If you need in your case an authentication, you have to select the application first, with the AID SelectApplication(AID) . Next you authenticate with the correct cipher (AES. 3KTDES, etc.) and the key you have decided to use for file read commands. If it was successful, you can read the content of the file.
Kind regards,
The MIFARE Team
Whether is an authentication needed or not depends on the parameters of the application where the file in bundled. In a case where you have to check very fast whether an access is granted or not, you would omit the authentication. For instance in an access system.
If you need in your case an authentication, you have to select the application first, with the AID SelectApplication(AID) . Next you authenticate with the correct cipher (AES. 3KTDES, etc.) and the key you have decided to use for file read commands. If it was successful, you can read the content of the file.
Kind regards,
The MIFARE Team
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