摘要:
In an inverse calculation, x is road out of a storage means, [x/2] is calculated and stored therein as b, a lent significant bit of b is stored as a, [(ax+b)/2] is calculated and stored as updated b, and low-order two bits of x are stored as y. Then, for i=1, 2, . . . , n−1, by is calculated, a is updated with −by, [(b+ax)/(2^(2i))] is calculated and stored as updated b, and y+a2^(2i) is calculated and stored as updated y, where y is road out as the result of inverse calculation.
摘要:
Permuted data (u1′, u2′, . . . , um′) of input data (u1, u2, . . . , un) expressed by the relationship [ u 1 ′ u 2 ′ ⋮ u m ′ ] = P [ u 1 u 2 ⋮ u n ] , are obtained by expressing the permuted data uj′ by uj′=ui′+Di, where j≠i and calculate uj′ for all of j.
摘要翻译:由关系表示的输入数据(u1,u2,...,un)的被许可数据(u1',u2',...,um')通过将置换的数据uj'表示为uj'= ui'+ Di ,其中j
摘要:
In a method for permuting and dividing 16 pieces of k-bit data held in 4k-bit long registers T0. T1, T2 and T3, k being an integer, the data of each register Ti is ANDed with a desired one of mask data (00ffff00), (ff0000ff), (0000ffff) and (ffff0000), and such ANDs are ORed to obtain desired permuted data.
摘要:
A plurality of round processing parts (38) are provided each of which contains a nonlinear function part (304), and each nonlinear function part (304) comprises: a first key-dependent linear transformation part (341) which performs a linear transformation based on a subkey; a splitting part (342) which splits the output from the first key-dependent linear transformation part into n pieces of subdata; a first nonlinear transformation part (343) which nonlinearly transforms those pieces of subdata, respectively; a second key-dependent linear transformation part (344) which linearly transforms those nonlinearly transformed outputs based on a subkey and outputs n pieces of transformed subdata; a second nonlinear transformation part (345) which nonlinearly transforms those transformed subdata; and a combining part (346) which combines the nonlinearly transformed outputs. An n×n matrix, which represents the linear transformation in the second key-dependent linear transformation part (344), is formed by n vectors whose Hamming weights are equal to or larger than T−1 for a security threshold T, thereby increasing the invulnerability against differential cryptanalysis and linear cryptanalysis.
摘要:
According to an embodiment, an instructor support system has a plant simulation device used for plant operation training, an instructor support device, a dialog display device, a video device, and an operator position detection means that picks up an image of an operator with an operation detection video camera and carries out image processing for the image. The instructor support device has an operator position judgment means that judges an operator position in accordance with the information received from the operator position detection means, an operator information saving means that records a corresponding table between an ID code and an operator name, an operator name display data generation means, and an operation history display screen that shows the generated operator name display data to an instructor.
摘要:
Disclosed an image forming apparatus including: a nonvolatile storage section to store a print job; an input section for instructing to store the print job in the storage section; a condition setting section to allow the storage section to store a predetermined condition for enabling execution of the print job so that the predetermined condition corresponds to the print job; and a control section to execute the print job stored in the storage section, wherein the control section executes the print job when the control section judges that the predetermined condition stored in the storage section is met.
摘要:
A double-wall structure (1), comprising plate-like bodies (2) and (3) disposed oppositely to each other to form an inner room (4) therebetween, peripheral members (5) disposed so that the inner room (4) can be completely or approximately closed, and perforated plates (13) with a large number of holes (8) disposed between the plate-like bodies facing each other. The double-wall structure is characterized in that an air layer (A) is interposed between the perforated plates and the peripheral members. Thus, since the double-wall structure can suppress the deterioration of a sound reduction index for sound with specific frequencies, it can stably develop sound insulation performance for sound with the various frequencies.
摘要:
A sound-absorbing structure body according to the present invention comprises a ridge-groove board (11) formed with a large number of ridges and grooves, a closing board (15) joined to the ridge-groove board so as to close one side of the ridge-groove board and thereby form a hollow portion (13), a partition board (21) for partitioning the hollow portion (13) into two or more partitioned spaces (22a, 22b), and two or more holes (25a, 25b) opened in the ridge-groove board so as to bring into communication with each of the two or more partitioned spaces (22a, 22b).
摘要:
Compositions for delivering a pharmaceutically active agent to the eye, and/or for treating an ophthalmic disorder, are based on a fumarate polymer, especially a poly(propylene fumarate) polymer.
摘要:
An image forming apparatus includes: an image reading device for reading images on a document; an image recording device for recording images read by the image reading device on a recording material; an inputting device that makes it possible for an operator to select either area from plural imaginary areas established in advance and to adjust a position in the selected area, for setting, on a given position on the recording material, a recording position for additional information to be recorded on the recording material by the image recording device in addition to the images stated above; and a controller that controls the image recording device for recording the additional information on the recording position that is set by the inputting device.