Abstract: Systems, devices, and methods used to provide real-time product information for retail products and services are generally disclosed herein. One example embodiment includes a referral application operating on a smartphone, configured to correlate data from multiple sources and provide context-aware recommendations and information relevant to a product or service being evaluated by a consumer in the physical shopping environment (such as a retail store). For example, the data may be obtained from a retailer's product information database, a retailer's competitor information database, an advertiser information database, an Internet-hosted service, a social network, or similar internal or external information sources. The real-time product information may be correlated, aggregated, and displayed to the user to either facilitate the retail purchase in the store, or encourage another online or retail purchase.

Abstract: An integrated circuit substrate of an aspect includes a plurality of exposed electrical contacts. The integrated circuit substrate also includes an inaccessible set of Physically Unclonable Function (PUF) cells to generate an inaccessible set of PUF bits that are not accessible through the exposed electrical contacts. The integrated circuit substrate also includes an accessible set of PUF cells to generate an accessible set of PUF bits that are accessible through the exposed electrical contacts. Other apparatus, methods, and systems are also disclosed.

Abstract: Generally, this disclosure describes a method and system for automated check-out and drop-off return of products using a mobile device. A method may include purchasing at least one product of a plurality of products wherein each product is located at a respective associated product location in a store that sells the plurality of products and a point of sale of each purchased product corresponds to the respective associated product location.

Abstract: An apparatus for sharing information between entities includes a processor and a trusted execution module executing on the processor. The trusted execution module is configured to receive first confidential information from a first client device associated with a first entity, seal the first confidential information within a trusted execution environment, receive second confidential information from a second client device associated with a second entity, seal the second confidential information within the trusted execution environment, and execute code within the trusted execution environment. The code is configured to compute a confidential result based upon the first confidential information and the second confidential information.

Abstract: Some implementations disclosed herein provide techniques and arrangements for provisioning keys to integrated circuits/processors. A processor may include physically unclonable functions component, which may generate a unique hardware key based at least on at least one physical characteristic of the processor. The hardware key may be employed in encrypting a key such as a secret key. The encrypted key may be stored in a memory of the processor. The encrypted key may be validated. The integrity of the key may be protected by communicatively isolating at least one component of the processor.

Abstract: A processor of an aspect includes root key generation logic to generate a root key. The root key generation logic includes a source of static and entropic bits. The processor also includes key derivation logic coupled with the root key generation logic. The key derivation logic is to derive one or more keys from the root key. The processor also includes cryptographic primitive logic coupled with the root key generation logic. The cryptographic primitive logic is to perform cryptographic operations. The processor also includes a security boundary containing the root key generation logic, the key derivation logic, and the cryptographic primitive logic. Other processors, methods, and systems are also disclosed.

Abstract: Methods, systems and apparatus are disclosed to facilitate client-based authentication. An example method includes associating an identity authority with a client platform in an isolated execution environment, associating a user identity with the identity authority, generating a first key pair associated with a first service provider, generating an attestation based on a first authorization sequence of the client platform, and signing the attestation with a portion of the key pair and sending the signed attestation to the first service provider to authorize communication between the client platform and the first service provider.

Abstract: Generally, this disclosure describes a method and system for providing product mapping on a mobile device based on device context. A method may include receiving product location data based on a context of a mobile device, wherein the product location data includes an available product location for each available product that corresponds to a desired product in a shopping list of desired products; and displaying a map of a store that sells one or more available products, wherein the store is related to the context and the map includes a product location indicator corresponding to each available product location configured to allow a user to find each available product that corresponds to a respective desired product in the store.

Abstract: An integrated circuit substrate of an aspect includes a plurality of exposed electrical contacts. The integrated circuit substrate also includes an inaccessible set of Physically Unclonable Function (PUF) cells to generate an inaccessible set of PUF bits that are not accessible through the exposed electrical contacts. The integrated circuit substrate also includes an accessible set of PUF cells to generate an accessible set of PUF bits that are accessible through the exposed electrical contacts. Other apparatus, methods, and systems are also disclosed.

Abstract: The output of a physically unclonable function (PUF) may be processed to reduce its size. The post-processing result is served as a device intrinsic unclonable identifier and is signed by the device manufacturer to create a certificate stored on board the same device that includes the physically unclonable function. This scheme may not require online verification and complex error correction on PUFs in some cases.

Abstract: An electronic system and corresponding method for verifying the integrity of code that is stored off-chip. The electronic system comprises a memory element to store Processor Abstraction Layer (PAL) code and a processor coupled to the memory element. The processor verifies the integrity of the PAL code prior to execution of the PAL code.

Abstract: An electronic system and corresponding method for authenticating firmware stored in a memory element external to a processor. In one embodiment, an electronic system comprises a processor and a memory element. The memory element is used to contain firmware and a digital signature of the firmware signed by a signatory. Coupled to the memory element, the processor authenticates the firmware during a predetermined condition, which occurs prior to execution of the firmware, through use of a pre-stored public key of the signatory and a pre-stored digital signature function.