Abstract: A configuration method of an optical signal, an encryption device, and an encryption system makes it possible for a legitimate communicating party to ensure information-theoretic security against a known plain text attack and to communicate long-distance.

Abstract: The present invention relates to a hydrogen supply device which supplies hydrogen by selectively permitting permeation of hydrogen contained in a hydrogen containing gas (G1). This device includes: a first metal layer (2) which dissociates hydrogen molecules into hydrogen ions by a catalytic reaction and has hydrogen permeability; a second metal layer (3) which creates hydrogen molecules by bonding hydrogen ions to each other using electrons and has hydrogen permeability; a hydrogen permeation layer (1) which is interposed between the first metal layer (2) and the second metal layer (3) and permits permeation of the hydrogen ions from the first metal layer (2) to the second metal layer (3) by the application of a voltage; and a voltage application (7) for applying the voltage to the hydrogen permeation layer (1) by setting the first metal layer (2) as an anode and setting the second metal layer (3) as a cathode.

Abstract: The present invention aims at providing an encoding device for error correction, encoding method for error correction and encoding program for error correction wherein countermeasures against eavesdropping are taken into account. To achieve this, in accordance with an aspect of the present invention there is provided an encoding device for error correction, the device comprises a generation means for generating randomly a vector u=(xk+1, . . . , xm) composed of m-k digit(s); a creation means for creating an x?=[xu]=(x1, . . . , xm) by concatenating the vector u=(xk+1, . . . , xm) composed of m-k digit(s) randomly created by the creation means to data x=(x1, . . . , k) to send; and an output means for outputting a vector of length n by carrying out [n, m] encoding of the x? created by the creation means.

Abstract: A configuration method of an optical signal, an encryption device, and an encryption system makes it possible for a legitimate communicating party to ensure information-theoretic security against a known plain text attack and to communicate long-distance.

Abstract: The present invention aims at providing an encoding device for error correction, encoding method for error correction and encoding program for error correction wherein countermeasures against eavesdropping are taken into account. To achieve this, in accordance with an aspect of the present invention there is provided an encoding device for error correction, the device comprises a generation means for generating randomly a vector u=(xk+1, . . . , xm) composed of m-k digit(s); a creation means for creating an x?=[xu]=(x1, . . . , xm) by concatenating the vector u=(xk+1, . . . , xm) composed of m-k digit(s) randomly created by the creation means to data x=(x1, . . . , xk) to send; and an output means for outputting a vector of length n by carrying out [n, m] encoding of the x? created by the creation means.