Can we do TOTP in nrf52833?

[lara]

Hi

i want to generate security key with the combination of time and private key.can i acheive it in NRF..mainly in NRF52833?

i have a ref code in this repo.. here can i implement this library in nrf(vs code)

[Amanda Hsieh]

Hi, 

We do not have any TOTP samples. However, we have a set of crypto samples. You can then use our cryptography functionality to implement TOTP, for example using the code you link to. 

Regards,
Amanda H.

[lara]

ok amanda i implemented the external library for it.for totp,the next step i want to do is..i need to set/get  the time in rtc(real time clock).but the nrf52833 having real time counters.how to setup the time with these counters?

[Amanda Hsieh]

Hope this post can help. If not, Please create a new support case for the RTC setting which is away from the original scope, and I will be out of the office next week.    

[lara]

Hi amanda,

i succesfully enable rtc,but the time which i set in the rtc is not updating,

i added the below config.

CONFIG_RTC=y

CONFIG_RTC_ALARM=y

CONFIG_RTC_UPDATE=y

CONFIG_RTC_CALIBRATION=y

[lara]

iam using this source code https://github.com/zephyrproject-rtos/zephyr/blob/main/samples/drivers/rtc/src/main.c

[Amanda Hsieh]

You can access the real-time counter with Zephyr kernel API, such as k_uptime_get() or k_uptime_get_32().