4.16.3 STSAFE-A110 test profile for STEVAL-WBC2TX70
The STSAFE-A110 featured on this board comes with a test profile made for evaluation purposes and is not
intended to be mounted on an official Qi charger.
The PKI of this profile is based on the following:
• The WPC Root CA used for this profile is the WPCCA3, which is a test root key pair owned by the WPC.
• The Manufacturer CA is the STM STSAFE-A TEST CA 91, which is a test manufacturer certificate owned
by ST and signed by the WPCCA3.
• The Product Unit Certificate signed by the STM STSAFE-A TEST CA 91 with a Qi RSID, unique for each
sample.
Each STSAFE-A110 includes a certificate chain stored in memory Zone 0. The certificate chain is necessary for
Qi authentication and includes the following:
Table 10. STSAFE-A110 certificate chain elements
Data element Length Value
Length of the
certificate chain
2 bytes Unique for each device
WPCCA3 certificate
hash
32 bytes
The same for all devices:
0x
827F151A5EDAE7C75C430415F4321D63
AAF7CB0A3A93E9BFAF222854E8373010
STM STSAFE-A
TEST CA 91
certificate
281 bytes
The same for all devices:
0x
308201253081CCA003020102020968C0
8352C5ED60D2D3300A06082A8648CE3D
0403023011310F300D06035504030C06
5750434341333020170D323130333033
3135303130305A180F39393939313233
313233353935395A30123110300E0603
5504030C07303031362D393130393013
06072A8648CE3D020106082A8648CE3D
030107032200032721C562F8F2268FAD
D3741BC58B98F416C2217AB98BF0DEBF
792DB2C72FC2FFA32A30283012060355
1D130101FF040830060101FF02010030
12060567811401010101FF0406040400
000001300A06082A8648CE3D04030203
48003045022100ED06B330BE0FA77E09
57648C51763E3D0DD2B2D95E26753CBD
E6CCB84C43649D022074C132B2E49AEB
6D14CDE563B53C8787388D1576750EE5
D7818FC3E90F78AA97
Product unit
certificate
Unique for
each device
Serial number, public key, and signature are unique for each STSAFE-A110. Leaf key
is the one of STSAFE-A110 slot#0.
A detailed STSAFE-A110 profile description used in the STEVAL-WBC2TX70 can be found on this link (link to be
provided by CS division once published).
UM3286
Device description and operation
UM3286 - Rev 1
page 25/84
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