OPENSSL_clear_realloc
c = OPENSSL_clear_realloc(a->data, a->length, w + 1);
sp = OPENSSL_clear_realloc(s, slen, num + i * 2);
ret = OPENSSL_clear_realloc(str->data, str->max, n);
void *new_cache = OPENSSL_clear_realloc(data->cached_passphrase,
seed = OPENSSL_clear_realloc(ctx->seed, ctx->seedlen, seedlen);