Patent application number | Description | Published |
20090319800 | CRYPTOGRAPHIC DEVICE HAVING SESSION MEMORY BUS - Provided is a cryptographic device performing encryption or decryption on input data, and more particularly, a cryptographic device having a session memory bus for communicating with a session memory. The cryptographic device includes: an external session memory for storing cryptographic information on each session; a cryptographic processor for encrypting or decrypting input data using the cryptographic information; an external session memory bus connected to the external session memory and the cryptographic processor; and a Central Processing Unit (CPU) for transferring and receiving data to and from the external session memory via the cryptographic processor. The separate session memory buses allow the cryptographic processor to access a session memory without being disturbed by another device, thereby improving the entire performance of the cryptographic device. | 12-24-2009 |
20090328194 | APPARATUS AND METHOD FOR VPN COMMUNICATION IN SOCKET-LEVEL - Provided is an apparatus and method for virtual private network (VPN) communication in a socket level that can be applied in an Internet Protocol version 4 (IPv4)/IPv6 complex network, and can process data in a socket level to make a VPN communication apparatus available in many applications requiring more security, as well as a web application. The apparatus includes: a VPN database for storing connection information of an internal device and an external device and security-related information associated with the connection information; a packet analyzing module for analyzing a packet received from the internal device or the external device, obtaining connection information of the device, and storing the obtained connection information in the VPN database; a key exchange engine for performing a key sharing process with the device, generating the security-related information associated with the connection information, and storing the generated security-related information in the VPN database; and a socket data processing engine for encoding or decoding data in the socket level based on the security-related information stored in the VPN database, wherein the data is transmitted to and received from the internal device or the external device. | 12-31-2009 |
20130059203 | ANODE ACTIVE MATERIAL FOR A LITHIUM SECONDARY BATTERY, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY INCLUDING SAME - Provided are an anode active material for a lithium secondary battery, a method for preparing same, and a lithium secondary battery including same. An anode active material for a lithium secondary battery according to the present invention includes: active particles by means of which lithium ions may be absorbed/released; and a coating layer coated on the surface of the active particles, wherein the coating layer includes a first material which is a hollow nanofiber and a second material which is a carbon precursor or LTO. | 03-07-2013 |
Patent application number | Description | Published |
20130103953 | APPARATUS AND METHOD FOR ENCRYPTING HARD DISK - An apparatus and method for encrypting a hard disk are provided. The apparatus includes a program management unit, an Internet Protocol (IP) management unit, and an encryption processing unit. The program management unit causes an allowed program or process to be executed based on a result of determination as to whether the program or process to be executed in a host terminal is allowed to gain access. The IP management unit causes data to be transmitted to an allowed destination IP address based on a result of determination as to whether the destination IP address to which the host terminal attempts to transmit the data is allowed to be accessed. The encryption processing unit encrypts and decrypts all data, exchanged between the host terminal and the hard disk by applying an algorithm, selected by a user, to the data. | 04-25-2013 |
20130159725 | FPGA APPARATUS AND METHOD FOR PROTECTING BITSTREAM - An FPGA apparatus and a method for protecting bitstreams are provided. The FPGA apparatus includes: a key storage unit, which is configured to be accessed only from within the FPGA, and having stored therein the encryption/decryption key and the initial key generated by the random number generator; a setting bitstream storage unit, which is an internal non-volatile memory stored with bitstreams for setting authentication and encryption/decryption; and an authentication and encryption/decryption setting unit, which is configured to call the encryption and decryption key and the initial value stored in the key storage unit to store encrypted bitstreams and authentication codes generated as a result of performing encryption on the bitstreams stored in the setting bitstream storage unit in external non-volatile memory, and verity the integrity of the encrypted bitstreams stored in the external non-volatile memory at the time of designing of the FPGA using the encrypted bitstreams. | 06-20-2013 |
20140157427 | APPARATUS AND METHOD FOR VERIFYING INTEGRITY OF FIRMWARE OF EMBEDDED SYSTEM - An apparatus and method for verifying the integrity of firmware of an embedded system is provided. The apparatus for verifying the integrity of firmware of an embedded system includes a target integrity code obtainment unit for obtaining a target integrity code of firmware of the embedded system. A source integrity code obtainment unit obtains a source integrity code of source firmware. An integrity determination unit determines whether integrity of the firmware of the embedded system is maintained, by using the target integrity code and the source integrity code. | 06-05-2014 |
Patent application number | Description | Published |
20130305927 | GAS SEPARATION MEMBRANE AND METHOD OF PREPARING THE SAME - A gas separation membrane including a porous layered support; and a gas separating active layer which is disposed on the porous layered support and includes a functionalized graphene. | 11-21-2013 |
20130313182 | SEPARATION MEMBRANE AND WATER TREATMENT DEVICE INCLUDING THE SAME - A forward osmosis water treatment device may use a separation membrane including a polymer layer introduced with a functional group having an affinity for an osmosis draw solute present in an osmosis draw solution. | 11-28-2013 |
20140069277 | GAS SEPARATION MEMBRANE AND METHOD OF PREPARING THE SAME - A gas separation membrane including a porous support; and a gas separating active layer which is disposed on the porous support and includes a functionalized graphene. | 03-13-2014 |
20160051940 | SEPARATION MEMBRANE FOR SEAWATER DESALINATION AND METHOD FOR PRODUCING SAME - Provided is a separation membrane for seawater desalination and a method for manufacturing the same, and more particularly, a separation membrane for seawater desalination with excellent water permeability and salt rejection and a method for manufacturing the same. If the separation membrane for seawater desalination and the method for manufacturing the same according to the present disclosure are applied, it is possible to provide a separation membrane for seawater desalination with excellent water permeability and salt rejection. Therefore, it is possible to provide a separation membrane for seawater desalination with improved performance in comparison to an existing separation membrane for seawater desalination. As a result, water resources may be widely utilized. | 02-25-2016 |
20160051942 | COMPOSITE SEPARATING MEMBRANE INCLUDING COATING LAYER OF GRAPHENE OXIDE/BILE ACID OR SALT THEREOF AND METHOD OF MANUFACTURING SAME - The present invention relates to a composite separation membrane that is applicable to carbon dioxide separation and recovery processes. The composite separation membrane includes a coating layer composed of graphene oxide and a bile acid or its salt on a porous polymer support. The composite separation membrane of the present invention, which includes a coating layer composed of graphene oxide and a bile acid or its salt, has both high carbon dioxide permeability and high selectivity for carbon dioxide over nitrogen, hydrogen or methane gas, is free of surface defects, and maintains a stable structure without deterioration of its performance even after long-term use. Due to these advantages, the composite separation membrane of the present invention can be applied to industrial fields involving carbon dioxide separation and recovery processes. The present invention also relates to a method for manufacturing the composite separation membrane. | 02-25-2016 |
20160074814 | COMPOSITE SEPARATION MEMBRANE INCLUDING GRAPHENE OXIDE COATING LAYER AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to a composite separation membrane including a graphene oxide coating layer. The composite separation membrane of the present invention has both high carbon dioxide permeability and high selectivity for carbon dioxide over nitrogen, hydrogen or methane gas, is free of surface defects, and exhibits remarkably increased selectivity for carbon dioxide over other gases (hydrogen, nitrogen, methane, etc.) without any change in carbon dioxide permeability, particularly even when exposed to water. Due to these advantages, the composite separation membrane of the present invention can be applied to industrial fields involving carbon dioxide separation and recovery processes. The present invention also relates to a method for manufacturing the composite separation membrane. | 03-17-2016 |