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+# ESP32 RFID tag management system
+
+Multi reader, multi user RFID tag mananager example.
+To run this example you need only a working MySQL database (remote or in your local LAN) and a RFID reader off course.
+
+To manage RFID reader in this example, the library [MFRC522v2](https://github.com/OSSLibraries/Arduino_MFRC522v2) is used. This library can handle both SPI and I2C bus.
+To handle the MySQL connection istead, you will need to add also my library [Arduino-MySQL client](https://github.com/cotestatnt/Arduino-MySQL).
+
+The pages served from ESP32 are static resources (PROGMEM flash stored literal strings):
+ - `/login` prompt for user authentication
+ - RFID logs and users management main page
+ - `/setup` to configure DB host, database name, user, password etc etc.
+
+Passwords are not stored as plain text inside DB, nor during handshaking between server and client but a SHA256 encrypted hash it's used instead.
+Since the **/login** pages can be loaded also without internet connection on a non-HTTPS server, a raw function for generate SHA256 string was added to that page.
+
+The SHA256 generation algorithm is freely inspired by the one available at [https://geraintluff.github.io/sha256/](https://geraintluff.github.io/sha256/)
+
+### TO-DO:
+`/setup` user and password are hard coded in the ESP firmware, so a change for using admin user@password stored in DB is needed.
+
+# Custom Login Page
+
+
+# Main Web Page
+
+
+#
+
+
+
+
+