摘要:
Disclosed are an abnormal Internet Protocol Security (IPSec) packet control system and method using IPSec configuration and session data which detects whether or not the packets encrypted by an Encapsulating Security Payload extended header are abnormal by using IPSec configuration and session data tables without decrypting them, thereby blocking harmful packets. The IPSec packet control system comprises: an extended header processing unit that receives an IPSec packet and extracts the data to be used in traffic control; check units for checking the packets in the stages of IPSec configuration and IPSec communication that receive the extracted data to determine whether or not the IPSec packet has passed; and a control unit that allows the IPSec to pass or to be blocked according to a determination result from the check units for checking the IPSec configuration and communication packets, whereby the abnormal IPSec packets are blocked using the IPSec configuration and session tables without decryption and encryption thereof, thereby processing the IPSec packet without performance degradation.
摘要:
An abnormal Internet Protocol Security (IPSec) packet control system and method utilizes IPSec configuration and session data to detect whether or not packets encrypted by an extended header are abnormal. The IPSec packet control system can include an extended header processing unit that receives an IPSec packet and extracts the data to be used in traffic control; check units for checking the packets in the stages of IPSec configuration and IPSec communication that receive the extracted data to determine whether or not the IPSec packet has passed; and a control unit that allows the IPSec to pass or to be blocked according to a determination result from the check units for checking the IPSec configuration and communication packets, where abnormal IPSec packets are blocked using the IPSec configuration and session tables without requiring them to be decrypted and encrypted.
摘要:
A loadless static random access memory cell is provided. The memory cell includes four transistors. The first transistor has a gate terminal corresponding to a word line of the memory cell, a source/drain terminal corresponding to a first bit line of the memory cell, and a drain/source terminal corresponding to a first storage node of the memory cell. The second transistor has a gate terminal corresponding to the word line, a source/drain terminal corresponding to a second bit line of the memory cell, and a drain/source terminal corresponding to a second storage node of the memory cell. The third transistor has a gate terminal coupled to the second storage node, a drain terminal coupled to the first storage node, a source terminal corresponding to a reference voltage, and a body terminal directly connected to the third gate terminal. The fourth transistor has a gate terminal coupled to the first storage node, a drain terminal coupled to the second storage node, a source terminal corresponding to the reference voltage, and a body terminal directly connected to the fourth gate terminal.
摘要:
A menu user interface providing device and a method thereof are disclosed. In accordance with an embodiment of the present invention, the method of providing a menu user interface by a portable apparatus, including determining whether a main menu icon displayed on a touch screen is selected; determining whether a menu mode is an activation mode or an inactivation mode if the main menu icon is selected; and changing the menu mode into the activation mode if the menu mode is determined as the inactivation mode and forming an expanded menu by radically arranging a submenu of n hierarchies, n being a natural number, corresponding to the main menu icon and displaying the formed expanded menu through a touch screen. Accordingly, with the present invention, a user interface capable of inputting various data with easy manipulation and minimized multi-points can be provided.
摘要:
A menu user interface providing device and a method thereof are disclosed. In accordance with an embodiment of the present invention, the method of providing a menu user interface by a portable apparatus, including determining whether a main menu icon displayed on a touch screen is selected; determining whether a menu mode is an activation mode or an inactivation mode if the main menu icon is selected; and changing the menu mode into the activation mode if the menu mode is determined as the inactivation mode and forming an expanded menu by radically arranging a submenu of n hierarchies, n being a natural number, corresponding to the main menu icon and displaying the formed expanded menu through a touch screen. Accordingly, with the present invention, a user interface capable of inputting various data with easy manipulation and minimized multi-points can be provided.
摘要:
A loadless static random access memory cell is provided. The memory cell includes four transistors. The first transistor has a gate terminal corresponding to a word line of the memory cell, a source/drain terminal corresponding to a first bit line of the memory cell, and a drain/source terminal corresponding to a first storage node of the memory cell. The second transistor has a gate terminal corresponding to the word line, a source/drain terminal corresponding to a second bit line of the memory cell, and a drain/source terminal corresponding to a second storage node of the memory cell. The third transistor has a gate terminal coupled to the second storage node, a drain terminal coupled to the first storage node, a source terminal corresponding to a reference voltage, and a body terminal directly connected to the third gate terminal. The fourth transistor has a gate terminal coupled to the first storage node, a drain terminal coupled to the second storage node, a source terminal corresponding to the reference voltage, and a body terminal directly connected to the fourth gate terminal.