Radio Frequency Identification (RFID) tags are remotely-powered data carriers, that are often touted as a "computer of the future", bringing intelligence to our homes and offices, optimizing our supply chains, and keeping a watchful eye on our pets, livestock, and kids. However, many RFID systems rely upon the integrity of RFID tag data for their correct functioning. It has never been so easy to interfere with RFID systems; we have built a handheld device that performs RFID tag emulation and selective RFID tag jamming (sortof like a personal RFID firewall). Our device is compatible with the ISO 15693/14443A (13.56 MHz) standards, and fits into a shirt pocket. This presentation will explain the "nuts and bolts" of how tag spoofing and selective RFID jamming work, and will conclude by demonstrating this functionality.
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