Opaque mbedtls_HMAC256_DRBG_reseed_function.
Opaque initial_key. Opaque initial_value.
Opaque mbedtls_HMAC256_DRBG_reseed_function.
Opaque list_repeat.
Require hmacdrbg.verif_hmac_drbg_seed.

Lemma update_WF I (WFI: WF I) c: WF (hmac256drbgabs_hmac_drbg_update I c).