Unlock instant, AI-driven research and patent intelligence for your innovation.

Device keys

A device and key technology, applied in the field of key management of cryptographic keys, can solve problems such as the number and type of difficult keys, and achieve the effects of quick assembly, cost reduction, and minimization of computation

Inactive Publication Date: 2010-05-05
NOKIA TECH OY
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to foresee the number and type of keys that should be contained in the device

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device keys
  • Device keys
  • Device keys

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] refer to figure 1 , an exemplary embodiment of the present invention will now be described in more detail. Shown is a personal device 100 that is under assembly control at the device manufacturer. The manufacturer controls the assembly of the device through a secure processing point 150 configured to communicate with the device. The methods and means for communicating with the device may be based on any technique known to a person skilled in the art and suitable for the type of device in question. Those skilled in the art will appreciate that assembly of a device will initially include loading in device memory various basic software modules, such as I / O drivers and communication protocols for the device interface circuitry to implement a communication port (not shown). Alternatively, such an I / O driver may already be stored in ROM memory (not shown) included in the device. The secure processing point 150 will include corresponding communications software compatible w...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to key management of cryptographic keys, which keys are intended to be used by applications included in a personal device. According to the invention a data package including one or more cryptographic keys is transferred to a personal device of a secure processing point of a device assembly line in order to store device specific cryptographic keys in the personal device. In response to the transferred data package, a backup data package is received by the secure processing point from the personal device, which backup data package is the data package encrypted witha unique secret chip key stored in a tamper-resistant secret storage of a chip included in the personal device . The secure processing point is arranged to store the backup data package, together with an associated unique chip identifier read from the personal device, in a permanent, public database.

Description

technical field [0001] The present invention relates to key management of cryptographic keys to be used by applications contained in personal devices. Background technique [0002] The use of personal devices, such as cellular telephones and handheld PDAs (Personal Digital Assistants), is becoming increasingly popular. Other kinds of personal equipment are readily conceivable, including any mobile communication terminal having some association with an end-user identity or possessing an anonymous user terminal identity. Among end users of personal devices and parties communicating with those devices, there is a need to be able to use encrypted communications, digital signatures and digital certificates. With these kinds of cryptographic techniques, it is possible to guarantee the security and integrity of the transmitted message data, to identify the originator of the message and to identify the intended recipient of the message. [0003] Encrypted communication between two...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/00H04L29/00H04L9/08
CPCH04L2209/80H04L9/0866H04L9/08H04L2209/60H04L9/0894
Inventor N·阿索坎V·尼米
Owner NOKIA TECH OY