ELECTRONIC TAG DATA WRITING METHOD AND ELECTRONIC TAG READ/WRITE APPARATUS

摘要

: In an electronic tag data read/write apparatus, an electronic tag receives a response request f rom a reader/writer, generates a random number in a random number generator, stores the random number in a memory, and transmits the generated random number to the reader/writer. The reader/writer conducts masking processing on write data on the basis of the random number every size of the received random number, repeats the masking processing until all of the write data are subjected to masking processing, and then transmits the masked write data to the electronic tag collectively. The electronic tag conducts deciphering processing on the received masked write data every size of the random number stored in the memory, repeats the deciphering processing until all of the ma sked write data are deciphered, and writes the write data into the memory. No. of Pages : 50 No. of Claims : 14