linux-kernel - DRBG CAVS test error

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Date:   Wed, 5 Aug 2020 20:03:31 +0000
From:   "Bhat, Jayalakshmi Manjunath" <jayalakshmi.bhat@...com>
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: DRBG CAVS test error

Hi All

I am executing DRBG CAVS test, using drbg_nopr_hmac_sha512. Below is the code snippet.

test_data.testentropy = &testentropy;
drbg_string_fill(&testentropy, drbg_st->entropy_nonce_input, drbg_st->entropy_nonce_len);
drbg_string_fill(&pers, drbg_st->personalization_string, iv_struct->personalization_string_len);
ret = crypto_drbg_reset_test(drng, &pers, &test_data);

drbg_string_fill(&additional_input, drbg_st->additional_input_reseed, drbg_st->additional_input_reseed_len);
if (drbg_st->entropy_input_reseed_len >0)
	drbg_string_fill(&entropy_input, drbg_st->>entropy_input_reseed, drbg_st->entropy_input_reseed_len);
ret = crypto_drbg_get_bytes_addtl(drng, buf, test->expectedlen, &additional_input);

drbg_string_fill(&additional_input,   drbg_st->additional_generate,    drbg_st->additional_generate_len);
if (drbg_st->entropy_input_generate_len >0)
	drbg_string_fill(&entropy_input, drbg_st->entropy_input_generate, drbg_st->entropy_input_generate_len);
ret = crypto_drbg_get_bytes_addtl(drng, buf, test->expectedlen, &additional_input);

drbg_string_fill(&additional_input, drbg_st->additional_input_final,    drbg_st->additional_input_final_len);
if (additional_input_final_len > 0)
	drbg_string_fill(&entropy_input, drbg_st->entropy_input_final, drbg_st->entropy_input_final_len);
ret = crypto_drbg_get_bytes_addtl(drng, buf, test->expectedlen, &additional_input);

However the output generated seems to be wrong. Can any help me to indicate what I am doing wrong

Regards,
Jaya