Random fails on the first renew session call

[pp111]

Hi,
I found that test.py does not always work well. 1/6 times I run the test it fails on the first renew session call (nonce=1), with the error:
'{"code":"DeviceSessionSignatureInvalid","message":"device session signature error","requestId":"xxxxxxxxxxxxxxxxxxxxxxx"}'

If the first renew goes well then all the subsequent renews will go fine too.

It does not seems to be related to the private key generated, since using a fixed key it also fails only sometimes on the first renew.

It must be something we are still missing

[jumkey]

ali_ecc/ali_renew_test.py

Line 29 in 8a81340

return sign_dat.hex()+"01"

这里的01是recoveryid不是固定的，可能是0，1，2，3，所以会有一定的几率成功
参考
https://github.com/paulmillr/noble-secp256k1/blob/dddf55b9ac93e441874f183a3fbb31e5d5e97424/index.ts#L1073

[kazutoiris]

https://ethereum.stackexchange.com/questions/42455/during-ecdsa-signing-how-do-i-generate-the-recovery-id

• Is R.y even and R.x less than the curve order n: recovery_id := 0
• Is R.y odd and R.x less than the curve order n: recovery_id := 1
• Is R.y even and R.x more than the curve order n: recovery_id := 2
• Is R.y odd and R.x more than the curve order n: recovery_id := 3

I am aware of this issue and appreciate your feedback. However, due to the lack of time, I am unable to fix it in the near future.