Patent application number | Description | Published |
20130101114 | APPARATUS AND METHOD FOR GENERATING IDENTIFICATION KEY - Provided is an apparatus for generating an identification key by a probabilistic determination of a short occurring between nodes constituting a circuit, by violating a design rule provided during a semiconductor manufacturing process. The identification key generating apparatus may include an identification key generator to generate an identification key based on whether a contact or a via used to electrically connect conductive layers in a semiconductor chip shorts the conductive layers, and an identification key reader to read the identification key by reading whether the contact or the via shorts the conductive layers. | 04-25-2013 |
20130322624 | ENCRYPTION DEVICE AND METHOD FOR DEFENDING A PHYSICAL ATTACK - Provided are a security device and a method for operating same. The security device may conceal an encryption key used for an encryption algorithm in an encryption module in correspondence to security attacks such as reading information on where the encryption key is stored in a memory by disassembling an IC chip, or extracting said information through microprobing. The encryption key may be included as a physical encryption key module in an encryption module, and a certain storage medium for storing the encryption key may be included in the encryption module. Accordingly, the encryption key is not transmitted via a bus in a security device for encryption. | 12-05-2013 |
20140298431 | Information Security System in Smart Mobile Environment - Provided is a security communication method of a terminal device. A first authentication unit of the terminal device identifies a first subscriber to connect a first communication network. A second authentication unit of the terminal device exclusively operates with the first authentication unit, and identifies a second subscriber to connect a second communication network which is different from the first communication network. When the second subscriber is identified, at least one external communication module of the terminal device can be inactive. | 10-02-2014 |
20140341332 | DIGITAL COUNTER - A digital counter includes: a plurality of flip-flops configured to generate a plurality of count signals; and a controller configured to prevent level transition of an input terminal of a flip-flop to generate a count signal corresponding to a least significant bit (LSB), in response to a clock signal and a count end signal. | 11-20-2014 |
20150127537 | IC Chip for Preventing Identification Key Leak and Authorization Method Thereof - Disclosed are an IC chip for preventing identification key leak and an authorization method thereof. An IC chip capable of performing a financial function includes: a PIN supply unit for supplying a PIN used for authorization when performing a financial function using the IC chip; and a blocking unit for physically blocking the gap between the PIN supply unit and an input-output interface when the PIN is supplied to the outside through the input-output interface at an initial access of the IC chip. | 05-07-2015 |
20150179125 | DISPLAY DRIVING DEVICE COMPENSATING FOR OFFSET VOLTAGE AND METHOD THEREOF - A display driving device includes a data driver having a plurality of output drivers configured to output display driving signals. The display driving device also includes an offset adjusting circuit configured to subtract offset voltages generated in the output drivers from an input image signal to generate a corrected image signal. The offset adjusting circuit transmits the corrected image signal to the data driver, so that the data driver outputs the driving signals based on the corrected image signal. | 06-25-2015 |
20150195085 | ENCRYPTION DEVICE AND METHOD FOR DEFENDING A PHYSICAL ATTACK - Provided are a security device and a method for operating same. The security device may conceal an encryption key used for an encryption algorithm in an encryption module in correspondence to security attacks such as reading information on where the encryption key is stored in a memory by disassembling an IC chip, or extracting said information through microprobing. The encryption key may be included as a physical encryption key module in an encryption module, and a certain storage medium for storing the encryption key may be included in the encryption module. Accordingly, the encryption key is not transmitted via a bus in a security device for encryption. | 07-09-2015 |
20150222430 | Apparatus and Method for Processing Authentication Information - Provided is an information processing apparatus including a physical unclonable function (PUF) to generate a unique key using a process variation in a semiconductor manufacturing process, and an encryption unit to encrypt a password and/or bio-information received from a user using the unique key. | 08-06-2015 |