rand_length
total_len = rand_length(TEST_BUF_LEN);
size_t part_len = rand_length(remaining_len);
size_t len = rand_length(max_tested_len);
size_t len = rand_length(max_tested_len);
size_t len = rand_length(TEST_BUF_LEN);
rand_length(min(remaining, 4096));
size_t len = rand_length(MAX_LEN_FOR_KEY_CHECK);
size_t salt_len = rand_length(sizeof(salt));
size_t data_len = rand_length(max_data_len);
const size_t in_len = rand_length(max_len);
const size_t out_len = rand_length(max_len);
size_t part_len = rand_length(remaining_len);