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--- rb-projects-access:start [21/02/2025 13:25] – [Access Control] andrew
+++ rb-projects-access:start [18/09/2025 16:44] (current) – [SQL examples] andrew
@@ Line 52: / Line 52: @@
 </code>
 so card number 1234 is cardID 1 and  userID 3.
-presented to reader 7678 which is doorID 3 back door, as it is external it requires a PIN as well
+presented to reader 7678 which is doorID 3 back door, as it is external it requires a PIN as well. But
-userID 3 has access level to doorID "3" of "denied".
+as userID 3 has access level to doorID "3" of "denied", no access is granted even if a valid card and PIN is presented.
@@ Line 192: / Line 192: @@
 [[rb-projects-access:sqlexamples|rb-projects-access:sqlexamples]]
+===== References =====
+[[https://www.linux.com/training-tutorials/simple-card-based-access-control/]]