Invention Grant
US09501652B2 Validating sensitive data from an application processor to modem processor
有权
验证从应用处理器到调制解调器处理器的敏感数据
- Patent Title: Validating sensitive data from an application processor to modem processor
- Patent Title (中): 验证从应用处理器到调制解调器处理器的敏感数据
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Application No.: US14602988Application Date: 2015-01-22
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Publication No.: US09501652B2Publication Date: 2016-11-22
- Inventor: Erdal Paksoy , Narendar Shankar , Sven-Inge Redin
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Lawrence J. Bassuk; Frank D. Cimino
- Main IPC: G06F12/00
- IPC: G06F12/00 ; G06F21/60 ; G06F21/78 ; H04W12/06 ; G06F21/35 ; H04W12/02 ; H04W88/02

Abstract:
An electronic circuit 120 includes a more-secure processor (600) having hardware based security (138) for storing data. A less-secure processor (200) eventually utilizes the data. By a data transfer request-response arrangement (2010, 2050, 2070, 2090) between the more-secure processor (600) and the less-secure processor (200), the more-secure processor (600) confers greater security of the data on the less-secure processor (200). A manufacturing process makes a handheld device (110) having a storage space (222), a less-secure processor (200) for executing modem software and a more-secure processor (600) having a protected application (2090) and a secure storage (2210). A manufacturing process involves generating a per-device private key and public key pair, storing the private key in a secure storage (2210) where it can be accessed by the protected application (2090), 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 (222). Other processes of manufacture, processes of operation, circuits, devices, wireless and wireline communications products, wireless handsets and systems are disclosed and claimed.
Public/Granted literature
Information query