Widespread attention is recently paid upon RFID system structure consideringits ease of deployment over an extensive range of applications. Due to itsseveral advantages, many technical articles are published to improve itscapabilities over specific system implementations. Recently, a lightweightanti-de-synchronization RFID authentication protocol and a lightweight bindingproof protocol to guard patient safety are proposed. This contribution providesenough evidence to prove the first introduced protocol vulnerability tode-synchronization attack. It also provides the other protocol's suffering fromde-synchronization attack as well as tracking the movements of the tags. Thispaper also addresses appropriate solutions to fix the security flaws concerningthe two described protocols for secure RFID applications.
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