Abstract: The invention relates to a method of game management between a game management center and at least one remote game terminal, comprising a step of request of at least one game ticket, from the game terminal, and a step of presentation of the game ticket, by the game terminal. It furthermore comprises, before the step of presentation, a step of generation, by the game management center, of a win indicator determining whether the game ticket presented is a winner or a loser; and a step of transmission by the game management center and to the game terminal, of a result containing said win indicator. During the presentation step, the game terminal generates at least one representation of the game ticket as a function of the result transmitted and presents said game ticket under this representation.

Abstract: A game management center linked to at least one remote game terminal, sends the terminals to which it is linked, a message containing a game identifier and a question. The response from a player entered via a remote game terminal is transmitted in a form blinded with the aid of a secret to the game management center so as to guarantee the anonymity of the player. If the blinded response message is received before the instant of broadcasting of the response, the game management center sends an acknowledgement of receipt to said game terminal. The response in answer to the question is subsequently broadcast to all the remote game terminals. If the player has given the right answer, the terminal must, to claim its prize, send a message containing the acknowledgement of receipt and an item proving that it is in possession of the secret used to blind the response.

Abstract: The invention relates to a method of game management between a game management center (10) and at least one remote game terminal (20i), comprising a step (40) of request of at least one game ticket, from the game terminal (20i), and a step (58, 60) of presentation of the game ticket, by the game terminal. It furthermore comprises, before the step of presentation, a step (50) of generation, by the game management center (10), of a win indicator (R1) determining whether the game ticket presented is a winner or a loser; and a step (52) of transmission by the game management center (10) and to the game terminal (201, . . . , 20n), of a result (R) containing said win indicator.

Abstract: A system for protecting software that can be executed on a computer machine, the system being of the type in which the software is associated with a memory card for insertion in a reader connected to the computer machine. The software stores a public key, and periodically generates a pseudo-random number. A first algorithm is implemented by using the public key on information received from the reader. The result of implementing the first algorithm is compared with the pseudo-random number. Execution of the software is interrupted in response to such comparison. The card has protected storage means for storing an associated private key and means for implementing a second algorithm using the private key upon receiving information issued by the computer machine, thereby obtaining encoded information. The encoded information is transmitted from the card to the computer machine.

Abstract: This method for managing a game for betting on at least one winning combination, between a game management center (10) and at least one remote game terminal (16i) comprises a step (24) which involves choosing, from the game terminal (16i), a combination of elements from a first set of proposed elements.

Abstract: A game management center linked to at least one remote game terminal, sends the terminals to which it is linked, a message (MQ) containing a game identifier and a question. The response from a player entered via a remote game terminal is transmitted in a form blinded with the aid of a secret to the game management center so as to guarantee the anonymity of the player. If the blinded response message is received before the instant of broadcasting of the response, the game management center sends an acknowledgement of receipt to said game terminal. The response in answer to the question is subsequently broadcast to all the remote game terminals.

Abstract: A system for protecting software that can be executed on a computer machine, the system being of the type in which the software is associated with a memory card for insertion in a reader connected to the computer machine. The software stores a public key, and periodically generates a pseudo-random number. A first algorithm is implemented by using the public key on information received from the reader. The result of implementing the first algorithm is compared with the pseudo-random number. Execution of the software is interrupted in response to such comparison. The card has protected storage means for storing an associated private key and means for implementing a second algorithm using the private key upon receiving information issued by the computer machine, thereby obtaining encoded information. The encoded information is transmitted from the card to the computer machine.