In one embodiment, an apparatus includes: a processing circuit to execute instructions; and a host controller coupled to the processing circuit to perform a key exchange with a second device to couple to the apparatus via a bus to which a plurality of devices may be coupled, and in response to a successful completion of the key exchange, enable secure communication with the second device. Other embodiments are described and claimed.

An optical recording medium includes a reflective layer, a first dielectric layer, a phase-change recording layer, and a second dielectric layer. The phase-change recording layer has an average composition represented by SbxInyMz, in which M is at least one of Mo, Ge, Mn, and Al, and x, y, and z are values in the ranges 0.70x0.92, 0.05y0.20, and 0.03z0.10, respectively, provided that x+y+z=1, the first dielectric layer includes a zirconium oxide-containing composite material or tantalum oxide, and the second dielectric layer includes a chromium oxide-containing composite material or silicon nitride.

A document management system includes a management apparatus and plural processing apparatuses. Each of the plural processing apparatuses includes an acquisition unit and a transmitter. The acquisition unit acquires a document and information on a destination to which the document is transmitted. The transmitter transmits metadata of the document to the management apparatus and transmits a protected document generated from the document to the destination. The metadata includes the information on the destination. The management apparatus includes a memory and a response unit. The memory stores metadata of documents received from the plural processing apparatuses. The response unit responds to a request for metadata corresponding to a document by returning metadata of the document which is stored in the memory.

A method, system and software for establishing a secure communications channel between repositories using a repository transaction protocol, including generating a registration identifier and registration message including an identification certificate, and an identifier of a master repository that encrypted the identification certificate; receiving the registration message and verifying the identity by verifying the identification certificate; validating the authenticity, including, generating a message to test the authenticity, sending the generated message, and verifying if upon receiving the generated message whether the generated message is correctly processed; and exchanging messages including a session key used for communications and transactions including generating a request for a digital work, associating usage rights information with the request for digital work, and determining if the usage rights information associated with the request corresponds to usage rights associated with the digital work. The usage rights define a manner in which the digital work is used or distributed.

An optical recording medium includes a reflective layer, a first dielectric layer, a phase-change recording layer, and a second dielectric layer. The phase-change recording layer has an average composition represented by SbxInyMz, in which M is at least one of Mo, Ge, Mn, and Al, and x, y, and z are values in the ranges 0.70x0.92, 0.05y0.20, and 0.03z0.10, respectively, provided that x+y+z=1, the first dielectric layer includes a zirconium oxide-containing composite material or tantalum oxide, and the second dielectric layer includes a chromium oxide-containing composite material or silicon nitride.

Apparatus, method, and media for controlling utilization of content. An exemplary method comprises associating one or more usage rights with content, wherein the usage rights are based at least in part on a usage rights grammar, and wherein each of the usage rights corresponds to a permitted utilization of the content and one or more conditions which must be satisfied in order for the respective usage right to be exercised, receiving from an external computing device external, a request to access the content, the request corresponding to a utilization of the content, determining whether the requested utilization corresponds to at least one of the usage rights associated with the content, and transmitting to an external a computing device, at least one of the usage rights based at least in part on a determination that the requested utilization corresponds to at least one of the usage rights.

A memory device is provided which comprises a memory array, a first scrambling circuit and a second scrambling circuit. The first scrambling circuit is configured to provide first scrambled data with a first scrambling pattern in response to input data. The second scrambling circuit is configured to provide second scrambled data with a second scrambling pattern in response to the first scrambled data.

The present disclosure provides systems, methods, and computer program products for providing efficient embedding table storage and lookup in machine-learning models. A computer-implemented method may include obtaining an embedding table comprising a plurality of embeddings respectively associated with a corresponding index of the embedding table, compressing each particular embedding of the embedding table individually allowing each respective embedding of the embedding table to be decompressed independent of any other embedding in the embedding table, packing the embedding table comprising individually compressed embeddings with a machine-learning model, receiving an input to use for locating an embedding in the embedding table, determining a lookup value based on the input to search indexes of the embedding table, locating the embedding based on searching the indexes of the embedding table for the determined lookup value, and decompressing the located embedding independent of any other embedding in the embedding table.

Systems and methods are disclosed for providing a trusted database system that leverages a small amount of trusted storage to secure a larger amount of untrusted storage. Data are encrypted and validated to prevent unauthorized modification or access. Encryption and hashing are integrated with a low-level data model in which data and meta-data are secured uniformly. Synergies between data validation and log-structured storage are exploited.

A method for biometrical identification of a user includes receiving, as an input, biometrical properties of a user, and encoding the biometrical properties. The encoded biometrical properties are checked with corresponding provided biometrical user information, Based on a result of the check, the user is identified and a response of the identification is outputted. Prior to encoding, the biometrical properties are encrypted, The encoded biometrical properties are provided as a biometrical challenge. The biometrical challenge is decrypted for performing the check. A verification of the response is provided for.