| 摘要 |
A method for determining a counterfeit from authentic RFID tag includes: assigning a unique tag identification number T wherein T=tag identification number TID; locking the unique number T into tag memory; assigning a secondary unique number E wherein E=a unique electronic product code EPC; locking the unique number E into tag memory; deriving a kill password K calculated based on an encryption algorithm f wherein K=f(T,E); locking the kill password K into tag memory; reading from the tag T′=TID; E′=EPC; and K′=kill password; calculating an expected kill password Ke based on the encryption algorithm f wherein Ke=f (T′,E′); comparing Ke to K′; concluding the tag is suspected counterfeit if Ke does not equal K′. It may further be concluded that the tag is authentic should the comparison result in Ke equaling K′.
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