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 |
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 |
Patent application number | Description | Published |
20140039038 | MULTI-CONJUGATE OF SIRNA AND PREPARING METHOD THEREOF - The present invention relates to a multi-conjugate of small interfering RNA (siRNA) and a preparing method of the same, more precisely a multi-conjugate of siRNA prepared by direct binding of double stranded sense/antisense siRNA monomers or indirect covalent bonding mediated by a cross-linking agent or a polymer, and a preparing method of the same. The preparing method of a siRNA multi-conjugate of the present invention is characterized by simple and efficient reaction and thereby the prepared siRNA multi-conjugate of the present invention has high molecular weight multiple times the conventional siRNA, so that it has high negative charge density, suggesting that it has excellent ionic interaction with a cationic gene carrier and high gene delivery efficiency. | 02-06-2014 |
20140309281 | MULTI-CONJUGATE OF SIRNA AND PREPARING METHOD THEREOF - The present invention relates to a multi-conjugate of small interfering RNA (siRNA) and a preparing method of the same, more precisely a multi-conjugate of siRNA prepared by direct binding of double stranded sense/antisense siRNA monomers or indirect covalent bonding mediated by a cross-linking agent or a polymer, and a preparing method of the same. The preparing method of a siRNA multi-conjugate of the present invention is characterized by simple and efficient reaction and thereby the prepared siRNA multi-conjugate of the present invention has high molecular weight multiple times the conventional siRNA, so that it has high negative charge density, suggesting that it has excellent ionic interaction with a cationic gene carrier and high gene delivery efficiency. | 10-16-2014 |
20150197754 | MULTI-CONJUGATE OF SIRNA AND PREPARING METHOD THEREOF - The present invention relates to a multi-conjugate of small interfering RNA (siRNA) and a preparing method of the same, more precisely a multi-conjugate of siRNA prepared by direct binding of double stranded sense/antisense siRNA monomers or indirect covalent bonding mediated by a cross-linking agent or a polymer, and a preparing method of the same. The preparing method of a siRNA multi-conjugate of the present invention is characterized by simple and efficient reaction and thereby the prepared siRNA multi-conjugate of the present invention has high molecular weight multiple times the conventional siRNA, so that it has high negative charge density, suggesting that it has excellent ionic interaction with a cationic gene carrier and high gene delivery efficiency. | 07-16-2015 |