How to use nonce in DRBG functions.

["Bhat, Jayalakshmi Manjunath" <jayalakshmi.bhat@xxxxxx>]

Hi All,

I am trying to implement DRBG CAVS test harness function for Linux Kernel crypto DRBG with the following requirements.
	1.	Derivate function is enabled.
	2.	prediction resistance is not enabled
	3.	Entropy input length is 256
	4.	Nonce length is 256
	5.	Mode is AES-CTR 256 
	6.	Reseed is supported
	7.	Intended use generate.

Thus inputs are
	1.	Entropy Input
	2.	Nonce
	3.	Entropy Additional Input

Flow goes something like below
	drbg_string_fill(&testentropy, test->entropy, test->entropylen);
	drbg_string_fill(&pers, test->pers, test->perslen);
	ret = crypto_drbg_reset_test(drng, &pers, &test_data);
	drbg_string_fill(&addtl, test->addtla, test->addtllen);
	ret = crypto_drbg_get_bytes_addtl(drng, buf, test->expectedlen, &addtl);
        
I am not finding a way to input nonce. Please can anyone tell me how to input nonce. 

Regards,
Jayalakshmi