Texas Instruments Corporation

Sven-Inge Redin

Narendar M Shankar

Erdal Paksoy

An electronic circuitincludes a more-secure processor () having hardware based security () for storing data. A less-secure processor () eventually utilizes the data. By a data transfer request-response arrangement () between the more-secure processor () and the less-secure processor (), the more-secure processor () confers greater security of the data on the less-secure processor (). A manufacturing process makes a handheld device () having a storage space (), a less-secure processor () for executing modem software and a more-secure processor () having a protected application () and a secure storage (). A manufacturing process involves generating a per-device private key and public key pair, storing the private key in a secure storage () where it can be accessed by the protected application (), combining the public key with the modem software to produce a combined software, signing the combined software; and storing the signed combined software into the storage space (). Other processes of manufacture, processes of operation, circuits, devices, wireless and wireline communications products, wireless handsets and systems are disclosed and claimed.

Validating sensitive data from an application processor to modem processor

An electronic circuit includes a more-secure processor having hardware based security for storing data. A less-secure processor eventually utilizes the data. By a data transfer request-response arrangement between the more-secure processor and the less-secure processor, the more-secure processor confers greater security of the data on the less-secure processor. A manufacturing process makes a handheld device having a storage space, a less-secure processor for executing modem software and a more-secure processor having a protected application and a secure storage. A manufacturing process involves generating a per-device private key and public key pair, storing the private key in a secure storage where it can be accessed by the protected application, combining the public key with the modem software to produce a combined software, signing the combined software; and storing the signed combined software into the storage space. Other processes of manufacture, processes of operation, circuits, devices, wireless and wireline communications products, wireless handsets and systems are disclosed and claimed.

Wireless communications system communicating secyre SIM and IMEI between processors

Processor system

Process of manufacturing a handheld device, involving keys

Methods, apparatus, and systems for securing SIM (subscriber identity module) personalization and other data on a first processor and secure communication of the SIM data to a second processor

Growing community of inventors

Taby, Sweden

Sven-Inge Redin