CC2652R: ZStack Application Link Key

T H25

Part Number: CC2652R

Dear TI-community,

is there some mechanism to request/establish an Application Link Key between two devices in ZStack 3.x?

I'm not talking about the Trust Center Link Key Exchange upon joining the network. What I want to accomplish is end to end security between two devices where neither of them is the Trust Center.

Thanks in advance!

over 6 years ago

0 YiKai Chen over 6 years ago

Guru 735685 points

Are you asking Zigbee 3.0 installation code?

0 T H25 over 6 years ago in reply to YiKai Chen

Prodigy 80 points

This question is not about the Install Code. The Install Code is used for establishing an Unique Trust Center Link Key for joining the network.

What I want is to establish an Unique Application Link Key between two devices in a network where neither of them is the Trust Center.

For example: I have a switch and a light in a centralized security network and I want to enable APS security between them.

See Zigbee PRO Spec 2015 R21 4.4.1.6 Conditional Encryption of APS Data

0 Ryan Brown1 over 6 years ago

TI__Guru**** 217547 points

The Global Trust Center Link Key is defined by DEFAULT_TC_LINK_KEY in nwk_globals.h and pre-configured for interoperability, it must be updated upon joining Zigbee 3.0 networks. APS link keys can be controlled using Zstackapi_secAps* functions described in the API: http://dev.ti.com/tirex/content/simplelink_cc13x2_26x2_sdk_3_10_00_53/docs/zigbee/doxygen/zigbee/html/index.html

The Standard Network Key is define by DEFAULT_KEY in zstack_config.h and is randomized if not set to an initial value. http://dev.ti.com/tirex/explore/node?node=AES5VdxyX-.OXxWoIFsyPg__pTTHBmu__LATEST

Regards,
Ryan

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CC2652R: ZStack Application Link Key