4 /* RC4-based pseudo-random state. */
6 static uint8_t s_i, s_j;
9 swap_byte (uint8_t *a, uint8_t *b)
28 for (i = 0; i < 256; i++)
30 for (i = j = 0; i < 256; i++)
32 j += s[i] + key_byte (i);
33 swap_byte (s + i, s + j);
40 random_bytes (void *buf_, size_t size)
44 for (buf = buf_; size-- > 0; buf++)
50 swap_byte (s + s_i, s + s_j);
52 s_k = s[s_i] + s[s_j];
57 /* Returns a pseudo-random unsigned long. */
62 random_bytes (&ul, sizeof ul);