Commit 4c78ba59 authored by Dr. Stephen Henson's avatar Dr. Stephen Henson
Browse files

Add entropy sanity check 



Reviewed-by: default avatarKurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/4092)
parent 78632b66

crypto/rand/drbg_rand.c

+5 −0
Original line number Diff line number Diff line
@@ -243,6 +243,9 @@ int ctr_instantiate(RAND_DRBG *drbg, 
{

    RAND_DRBG_CTR *ctr = &drbg->ctr;



    if (ent == NULL)

        return 0;



    memset(ctr->K, 0, sizeof(ctr->K));

    memset(ctr->V, 0, sizeof(ctr->V));

    AES_set_encrypt_key(ctr->K, drbg->strength, &ctr->ks);
@@ -254,6 +257,8 @@ int ctr_reseed(RAND_DRBG *drbg, 
               const unsigned char *ent, size_t entlen,

               const unsigned char *adin, size_t adinlen)

{

    if (ent == NULL)

        return 0;

    ctr_update(drbg, ent, entlen, adin, adinlen, NULL, 0);

    return 1;

}