Abstract: An encryption method and apparatus based on homomorphic encryption using a composition of functions. The encryption method includes generating a ciphertext by encrypting data, and bootstrapping the ciphertext by performing a modular reduction based on a composition of a function for a modulus corresponding to the ciphertext.

Abstract: A method and apparatus for processing a ciphertext based on homomorphic encryption. The method includes determining an approximate polynomial corresponding to a modulus reduction for bootstrapping a ciphertext based on samples extracted from the modulus reduction, and bootstrapping the ciphertext based on the approximate polynomial.

Abstract: Provided are an electronic device for sorting homomorphic ciphertext by using shell sorting and an operating method thereof to sort ciphertext generated by using homomorphic encryption according to a size of an original number corresponding thereto.

Abstract: Disclosed is an electronic apparatus. The electronic apparatus includes a memory storing a composite function in which at least two polynomials are composed and a processor configured to, based on a comparison operation command being received for a plurality of homomorphic ciphertexts, perform operation by reflecting the plurality of homomorphic ciphertexts to the composite function, and obtain a comparison result of the plurality of homomorphic ciphertexts based on the operation result, each of the at least two polynomials may output a value in a preset range for a value in a preset domain, and a domain of one of the at least two polynomials may be determined based on a range of a previous polynomial.

Abstract: A processor-implemented encryption method using homomorphic encryption includes: receiving data; generating a ciphertext by encrypting the received data; determining a coefficient of an approximating polynomial for performing a modular reduction on a modulus corresponding to the ciphertext, based on an error between the approximating polynomial and a modular reduction function; and performing bootstrapping on the ciphertext by performing the modular reduction based on the determined coefficient of the approximating polynomial.

Abstract: Provided are an electronic device for sorting homomorphic ciphertext by using shell sorting and an operating method thereof to sort ciphertext generated by using homomorphic encryption according to a size of an original number corresponding thereto.

Abstract: An encryption method and apparatus based on homomorphic encryption using a composition of functions. The encryption method includes generating a ciphertext by encrypting data, and bootstrapping the ciphertext by performing a modular reduction based on a composition of a function for a modulus corresponding to the ciphertext.

Abstract: A method and apparatus for processing a ciphertext based on homomorphic encryption. The method includes determining an approximate polynomial corresponding to a modulus reduction for bootstrapping a ciphertext based on samples extracted from the modulus reduction, and bootstrapping the ciphertext based on the approximate polynomial.

Abstract: A wiper system including wiper blades with different lengths may include: an arm to be rotated, and a blade to be rotated with the arm. In particular, the arm includes a retainer to press the blade, and the blade includes: a primary coupled to a front end of the retainer; and a plurality of yokes coupled to the primary and to receive a transferred pressing force and to transfer the pressing force to a bertebra coupled to a lower side thereof.

Abstract: According to the present invention, a method comprising: (a) calculating, by an admission control program, a parameter for scheduling a pipeline using a maximum allowable period and an execution time for each of N motion tasks, wherein the parameter includes an optimal periodic value, a task offset and an input/output offset for each of the N tasks; (b) generating, by a coordinator program, N motion tasks, wherein one of the N motion tasks is determined to be a reference task, and the other is determined to be a non-reference task; (c) allowing, by the reference task and the non-reference task, an operating system to generate a task wakeup timer and an input/output (I/O) initiating timer; and (d) setting, by the non-reference task, a task offset and an input/output offset for an own timer on the basis of the task wakeup timer of the reference task.

Abstract: An engagement device of a wiper and a vehicle body may include a motor for driving the wiper; a motor bracket fixed to the motor; a cowl bracket fixed to the vehicle body corresponding to the motor bracket, and a mounting portion forming a fixing structure between the motor bracket and the cowl bracket, wherein the mounting portion comprises a protrusion protruded from the motor bracket or the cowl bracket, and a socket, the protrusion being inserted into and fixed to.

Abstract: An engagement device of a wiper and a vehicle body may include a motor for driving the wiper; a motor bracket fixed to the motor; a cowl bracket fixed to the vehicle body corresponding to the motor bracket, and a mounting portion forming a fixing structure between the motor bracket and the cowl bracket, wherein the mounting portion comprises a protrusion protruded from the motor bracket or the cowl bracket, and a socket, the protrusion being inserted into and fixed to.

Abstract: According to the present invention, a method comprising: (a) calculating, by an admission control program, a parameter for scheduling a pipeline using a maximum allowable period and an execution time for each of N motion tasks, wherein the parameter includes an optimal periodic value, a task offset and an input/output offset for each of the N tasks; (b) generating, by a coordinator program, N motion tasks, wherein one of the N motion tasks is determined to be a reference task, and the other is determined to be a non-reference task; (c) allowing, by the reference task and the non-reference task, an operating system to generate a task wakeup timer and an input/output (I/O) initiating timer; and (d) setting, by the non-reference task, a task offset and an input/output offset for an own timer on the basis of the task wakeup timer of the reference task.

Abstract: A etchant composition that includes, based on a total weight of the etchant composition, about 0.5 wt % to about 20 wt % of a persulfate, about 0.5 wt % to about 0.9 wt % of an ammonium fluoride, about 1 wt % to about 10 wt % of an inorganic acid, about 0.5 wt % to about 5 wt % of a cyclic amine compound, about 0.1 wt % to about 10.0 wt % of a sulfonic acid, about 5 wt % to about 10 wt % of an organic acid or a salt thereof, and a remainder of water. The etchant composition may be configured to etch a metal layer including copper and titanium, to form a metal wire that may be included in a thin film transistor array panel of a display device.

Abstract: The present invention relates to an automatic excrement processing device comprising: a cup unit (10) worn on a portion of a user at which the excretory organs are located, and forming a space (11) in which urine is suctioned that is partitioned from a space (13) in which feces is suctioned; an excrement processing main body (60) connected to the cup unit (10) and suctioning excrement discharged into the cup unit (10) and storing same; a sensor unit provided on the cup unit (10), connected to the excrement processing main body (60), and sensing excrement; a washing nozzle unit (21) performing a washing function; a suctioning nozzle unit (49) suctioning excrement; and a drying nozzle unit (31) performing a drying function. The present invention has the advantages that the device provides a good feeling when worn, and wash excrement processing is possible through accurate sensing of excrement.

Abstract: A etchant composition that includes, based on a total weight of the etchant composition, about 0.5 wt % to about 20 wt % of a persulfate, about 0.5 wt % to about 0.9 wt % of an ammonium fluoride, about 1 wt % to about 10 wt % of an inorganic acid, about 0.5 wt % to about 5 wt % of a cyclic amine compound, about 0.1 wt % to about 10.0 wt % of a sulfonic acid, about 5 wt % to about 10 wt % of an organic acid or a salt thereof, and a remainder of water. The etchant composition may be configured to etch a metal layer including copper and titanium, to form a metal wire that may be included in a thin film transistor array panel of a display device.

Abstract: An etchant includes: 5 to 20 wt % of persulfate, 1 to 10 wt % of at least one compound of an inorganic acid, an inorganic acid salt, or a mixture thereof, 0.3 to 5 wt % of a cyclic amine compound, 1 to 10 wt % of at least one compound of an organic acid, an organic acid salt, or a mixture thereof, 0.1 to 5 wt % of p-toluenesulfonic acid, and water, based on the total weight of the etchant. A copper-titanium etchant further includes 0.01 to 2 wt % of a fluoride-containing compound. A method of forming a display device using the etchant, and a display device, are also disclosed.

Abstract: Exemplary embodiments of the present invention disclose a non-halogenated etchant for etching an indium oxide layer and a method of manufacturing a display substrate using the non-halogenated etchant, the non-halogenated etchant including nitric acid, sulfuric acid, a corrosion inhibitor including ammonium, a cyclic amine-based compound, and water.

Abstract: A etchant composition that includes, based on a total weight of the etchant composition, about 0.5 wt % to about 20 wt % of a persulfate, about 0.5 wt % to about 0.9 wt % of an ammonium fluoride, about 1 wt % to about 10 wt % of an inorganic acid, about 0.5 wt % to about 5 wt % of a cyclic amine compound, about 0.1 wt % to about 10.0 wt % of a sulfonic acid, about 5 wt % to about 10 wt % of an organic acid or a salt thereof, and a remainder of water. The etchant composition may be configured to etch a metal layer including copper and titanium, to form a metal wire that may be included in a thin film transistor array panel of a display device.

Abstract: An etchant includes: 5 to 20 wt % of persulfate, 1 to 10 wt % of at least one compound of an inorganic acid, an inorganic acid salt, or a mixture thereof, 0.3 to 5 wt % of a cyclic amine compound, 1 to 10 wt % of at least one compound of an organic acid, an organic acid salt, or a mixture thereof, 0.1 to 5 wt % of p-toluenesulfonic acid, and water, based on the total weight of the etchant. A copper-titanium etchant further includes 0.01 to 2 wt % of a fluoride-containing compound. A method of forming a display device using the etchant, and a display device, are also disclosed.