Abstract: The present invention provides a secure technique that allows two communication apparatus that perform encrypted communication to have a common initial solution. A large number of user apparatuses all have a function of generating the same solution under the same condition as far as the user apparatuses have the same initial solution, and can perform encrypted communication using solutions successively generated in synchronization from the same initial solution. All the user apparatuses and a server share the same initial solution and have a function of generating the same solution under the same condition and thus can generate synchronized solutions. The server generates synchronization information, which is information required to generate the initial solution but is not the initial solution itself (S2002), and transmits the synchronization information to at least one of two user apparatuses performing encrypted communication (S2003).

Abstract: An information processing system is configured to execute: storing game media possessed by a player; storing, in a preliminary period, first group information for identifying game media corresponding to a first game condition in a first storage area and second group information for identifying game media corresponding to a second game condition in a second storage area; storing, in a post period, the second group information in the first storage area; enabling, in the preliminary period, the execution of games using the first and second group information; enabling, in the post period, the execution of a game using the second group information stored in the first storage area and disabling the execution of a game using the first group information; and storing, in the first storage area in the post period, the second group information stored in the second storage area in the preliminary period.

Abstract: To propose a technique for solving a key delivery problem. Both of a client and a server have a function of generating the same solution at the same date and time based on the same initial solution. The client sends identification information for identifying the client to the server (S1002). The client and the server generate the same solution with time synchronization based on the initial solution (S1003 and S2002). The client and the server perform encrypted communication using the same key as a common key (S1004 and S2003).

Abstract: A computer realizes: a management function for managing first management information and second management information as information for managing game media having assigned thereto medium identifiers that are common for each same kind, the first management information indicating the medium identifiers and the number of game media possessed by a player, and the second management information indicating the medium identifiers and usage periods of game media having the usage periods set therefor; a determination function for determining game media available to the player based on the first management information and the second management information; and a set creation function for creating a medium set that includes a plurality of game media and that can include a plurality of game media of the same kind, based on an operation performed by the player to select from the game media available to the player, determined by the determination function.

Abstract: To provide an information processing apparatus and an information processing method. Provided is an information processing apparatus that includes a recognition section and an output control section. The recognition section recognizes background content displayed in a background of an aquarium. The output control section controls an output of light into an interior of the aquarium that acts as a foreground, on the basis of a result of recognizing the background content.

Abstract: SSL is improved with stronger defense against an attack from a third party, in particular, an MITMA. A client and a server each have the function of generating the same solution under the same conditions. The client generates a first solution (S1002) and transmits the solution to the server (S1003). When receiving the solution, the server generates a solution (S2002) and authenticates the client if the solution agrees with the solution received from the client (S2003). The server generates a new solution (S2004), encrypts a server certificate and an SSL certificate (S2005) by using the solution, and then transmits the certificates to the client (S2006). The client generates a new solution (S1005) and decrypts the server certificate and the SSL certificate by using the solution (S1006). The subsequent processing is identical to that of current SSL communications.

Abstract: The present invention appropriately gives game media to a player without lowering a game playability.

Abstract: Provided is a contact lens including: a lens unit configured to be worn on an eyeball; an image pickup unit configured to capture an image of a subject, the image pickup unit being provided in the lens unit; and an image pickup control unit configured to control the image pickup unit.

Abstract: Provided is a contact lens including: a lens unit configured to be worn on an eyeball; an adjustment unit configured to adjust light to be transmitted through at least one of a first region that is a central portion of the lens unit and covers a pupil of the eyeball and a second region that is an outer side of the first region and covers an iris of the eyeball; and a control unit configured to control the adjustment unit in response to input of a trigger signal.

Abstract: Provided is an information processing device, including a display control unit that performs first display control for causing an operation image to be displayed on a display screen and second display control for causing a first display indicating a correspondence relation between the operation image and an operating unit to be displayed at a position related with the operating unit.

Abstract: To propose a technique for solving a key delivery problem. Both of a client and a server have a function of generating the same solution at the same date and time based on the same initial solution. The client sends identification information for identifying the client to the server (S1002). The client and the server generate the same solution with time synchronization based on the initial solution (S1003 and S2002). The client and the server perform encrypted communication using the same key as a common key (S1004 and S2003).

Abstract: There is provided a display control system including a plurality of display units, an imaging unit configured to capture a subject, a predictor configured to predict an action of the subject according to a captured image captured by the imaging unit, a guide image generator configured to generate a guide image that guides the subject according to a prediction result from the predictor, and a display controller configured to, on the basis of the prediction result from the predictor, select a display unit capable of displaying an image at a position corresponding to the subject from the plurality of display units, and to control the selected display unit to display the guide image at the position corresponding to the subject.

Abstract: Provided is technology for enabling an ordinary user to generate a virtual currency that is data created as crypto cash in the true sense of the word. A user ID and amount information that are input to a user terminal by a user are sent from the user terminal to a settlement device (S913). Upon receiving the user ID and amount information, the settlement device performs a credit determination (S922), and transmits permission information to the user terminal (S923). At the user terminal, upon receiving the permission information, original data that combines the user ID and the amount information is generated (S915), the original data is encrypted and thereby converted to virtual currency encryption data (S916), and virtual currency data including the virtual currency encryption data is generated (S917). The authenticity of the virtual currency data is guaranteed by the fact that the settlement device which received the virtual currency data could decrypt the virtual currency encryption data (S925).

Abstract: A technique of preventing a man-in-the-middle attack is proposed. An internet banking system includes a user terminal and a settlement device that can communicate with each other via a network. The user terminal generates original data containing instruction data related to an instruction to be executed by the settlement device (S802), encrypts the original data into encrypted instruction data (S803), and transmits the encrypted instruction data to the settlement device (S805, 901). The settlement device decrypts the encrypted instruction data to returns the encrypted instruction data to the original data (S902), and executes an operation specified by the instruction data contained in the original data (S904).

Abstract: Provided is a data structure of virtual currency data with high safety. The virtual currency data, which is used in combination with a settlement device that accepts settlement when the virtual currency data is received from a predetermined device via a network and when predetermined conditions are satisfied, includes virtual currency encryption data which is data generated by encrypting, according to a predetermined encryption method, original data including at least amount information that is information for specifying a monetary value of the virtual currency data, and by further extracting characters, in conformity with a predetermined rule, from a character string obtained by the encryption.

Abstract: There is provided an information processing apparatus that obtains information of a voice input of at least one user and estimates an attribute of the user based on the information of the voice input. The information processing apparatus further controls a display apparatus to display a layout image for the information of the voice input based on the estimated attribute of the user.

Abstract: A technique for preventing a man in the middle attack is proposed. A security gate system includes an admission card and a security gate apparatus. The admission card has condition data that is data for specifying a condition to be satisfied when or before or after encrypted authentication data are transferred from the admission card to the security gate apparatus. When a user attempts to enter a building, authentication data including condition data are generated in the admission card 100 (S802), and encrypted into encrypted authentication data (S803). The encrypted authentication data are transmitted from the admission card to the security gate apparatus (S804, S904), and decrypted to be returned to the authentication data (S905). The security gate apparatus performs authentication determination which is a determination as to whether a condition specified by the condition data included in the authentication data is satisfied (S906), and opens a gate plate when a determination result is positive (S907).

Abstract: Provided is a data structure of virtual currency data with high safety. The virtual currency data, which is used in combination with a settlement device that accepts settlement when the virtual currency data is received from a predetermined device via a network and when predetermined conditions are satisfied, includes virtual currency encryption data which is data obtained by, according to a predetermined encryption method, encryption of issuer information including at least information on an issuer of the virtual currency data, amount information that is information for specifying a monetary value, and settlement condition information that is information on conditions for accepting payment with virtual currency.

Abstract: Technology is provided that replaces block chains, is capable of saving accumulated data, and has low cost. A user terminal 100-1 encrypts target data (S804), and sends the data to a user terminal 100-2 (S805). The user terminal 100-2 receives the data (S901), and further encrypts the encrypted target data (S902). The user terminal 100-2 records the double-encrypted target data (S903), and transmits the data to the user terminal 100-1 (S904). The user terminal 100-1 receives the data (S806), and records the double-encrypted target data (S807).