Apparatus and method for generating secret key
AssigneeElectronics and Telecommunications Research Institute
InventorsYou Sung KANG, Doo Ho CHOI, Hyunsook CHO
Life of this patent
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Abstract
An apparatus for generating a secret key generates the secret key by using information of a mobile RFID terminal, transmits the generated secret key to an RFID tag attached on an article, and decrypts a unique item identifier of the article encrypted by using the generated secret key after receiving the unique item identifier of the article encrypted by using the secret key from the RFID tag. By this configuration, it is possible to protect user's personal privacy of the mobile RFID terminal in a state where user's intervention is minimized.
Claims7
An apparatus for generating a secret key in a mobile radio frequency identification (RFID) terminal, comprising:
- an encryption unit generating the secret key by using information of the mobile RFID terminal;
- a communication unit transmitting the generated secret key to an RFID tag attached on an article and receiving a unique item identifier encrypted by using the secret key from the RFID tag;
- and
- a decryption unit providing information of the article by decrypting the encrypted unique item identifier of the article by using the generated secret key.
A method for generating a secret key in a mobile radio frequency identification (RFID) terminal, comprising:
- generating a secret key by using the information of the mobile RFID terminal;
- transmitting the generated secret key to an RFID tag attached on an article;
- receiving the encrypted unique item identifier of the article from the RFID tag by using the secret key;
- and
- providing the information of the article to a user by decrypting the encrypted unique item identifier by using the generated secret key.
Dependencies are inferred from the claim text.