156 results about "Encryption software" patented technology

A system containing both software and hardware to perform secure operations especially suited for Digital Right Management. The system has hardware to accelerate Elliptic Curve calculations, hash algorithms, and various encryption algorithms. The system runs on encrypted software, and the software is checked for integrity before it boots.

A gaming system comprises one or more player stations, a repository containing a number of different software programs, and a download server communicable with the repository and each one of the player stations by means of a communication network. Each player station is identified by a unique code and is operable by a respective player to play a corresponding game. Each software program in the repository is executable on any player station to generate a simulation of a different game. One or more of selected software programs contained in the repository are encrypted, remotely from any of the player Stations, as a function of the unique identification code of a particular of the player stations. The download server is responsive to the encryption and downloads the encrypted software program or programs to the particular player station whose unique identification code was used for encryption. A security module associated with the particular player station decrypts the downloaded encrypted software program or programs to obtain therefrom a decrypted identification code. The security module enables execution of the downloaded encrypted software programs by the particular player station when the decrypted identification code is the same as the unique identification code of the particular player station, and disables execution of the downloaded encrypted software programs by the particular player station when the decrypted identification code is different from the unique identification code of the particular player station. The security module also disables execution of the software programs when the software program have not been encrypted.

A method and system that enables the connection of an unclassified information system to a classified information system while meeting all government requirements. The system utilizes a combination of COTS technologies (e.g., a Trusted Gateway System, type-2 encryption software, etc.), local administrative policies, and scriptable software applications.

The embodiment of the invention provides a software upgrading method based on an OTA upgrading system and the OTA upgrading system, and the method comprises the steps that a package issuing unit encrypts a software package to obtain an encrypted software package, and generates metadata for the software package; a package issuing unit sends the encrypted software package to the downloading unit andsends the metadata to the upgrading service unit; an upgrading service unit acquires a vehicle certificate sent by a vehicle, encrypts the metadata by adopting the vehicle certificate to obtain encrypted metadata, and sends the encrypted metadata to the vehicle; enthe vehicle decrypts the encrypted metadata by adopting a preset vehicle private key, and verifies the legality of the metadata; if the metadata is legal, the vehicle acquires the encrypted software package from the downloading unit and decrypts the encrypted software package according to the metadata; the vehicle verifies the legality of the software package according to the metadata; and if the software package is legal, the vehicle is upgraded by adopting the software package. According to the embodiment of the invention, theproblems of tampering and replay attacks of the software package can be prevented.

An encryption method is provided that has a software model of a technical system, the model including software components is encrypted by a public key and a decryption structure, wherein the latter includes definitions of component groups of the software model. The decryption structure is integrated at least partially into the encrypted software model. Correspondingly, in a decryption method according to the invention, via a secret key that likewise comprises definitions of component groups, only the particular component groups are decrypted whose definitions the secret key includes in agreement with the definitions of the encrypted software model. The definitions of the secret key can be extended after the fact by a key extension, so that additional component groups can be decrypted with an extended secret key.