Abstract: An apparatus and method for remotely deleting critical information is provided. The apparatus includes a storage unit, an identity determination unit, and a broadcast unit. The storage unit stores an input value and an output value for the input value with respect to a physically unclonable function (PUF) of each of a plurality of mobile terminals. The identity determination unit determines the identity of a corresponding mobile terminal based on received information about the loss of the mobile terminal. The broadcast unit extracts the input and output values of the PUF of the corresponding mobile terminal from the storage unit based on information transferred from the identity determination unit, and broadcasts the extracted input and output values to all the mobile terminals.

Abstract: An encryption apparatus and method that provide a mobile fast block cipher algorithm that supports low-power encryption. The encryption apparatus includes a user interface unit, a key scheduler unit, an initial conversion unit, a round function processing unit, and a final conversion unit. The user interface unit receives plain text to be encrypted and a master key. The key scheduler unit generates a round key from the master key. The initial conversion unit generates initial round function values from the plain text. The round function processing unit repeatedly processes a round function using the round key and the initial round function values. The final conversion unit generates ciphertext from the resulting values of the round function processed in a final round by the round function processing unit.

Abstract: An apparatus and method for remotely deleting critical information is provided. The apparatus includes a storage unit, an identity determination unit, and a broadcast unit. The storage unit stores an input value and an output value for the input value with respect to a physically unclonable function (PUF) of each of a plurality of mobile terminals. The identity determination unit determines the identity of a corresponding mobile terminal based on received information about the loss of the mobile terminal. The broadcast unit extracts the input and output values of the PUF of the corresponding mobile terminal from the storage unit based on information transferred from the identity determination unit, and broadcasts the extracted input and output values to all the mobile terminals.

Abstract: An encryption apparatus and method that provide a mobile fast block cipher algorithm that supports low-power encryption. The encryption apparatus includes a user interface unit, a key scheduler unit, an initial conversion unit, a round function processing unit, and a final conversion unit. The user interface unit receives plain text to be encrypted and a master key. The key scheduler unit generates a round key from the master key. The initial conversion unit generates initial round function values from the plain text. The round function processing unit repeatedly processes a round function using the round key and the initial round function values. The final conversion unit generates ciphertext from the resulting values of the round function processed in a final round by the round function processing unit.