| 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> |
| 3 | |
| 4 | #include <mLib/bits.h> |
| 5 | |
| 6 | #include "ct.h" |
| 7 | #include "rijndael-ecb.h" |
| 8 | #include "poly1305.h" |
| 9 | |
| 10 | #define MSZMAX 1000 |
| 11 | #define NITER 1000000 |
| 12 | |
| 13 | int main(void) |
| 14 | { |
| 15 | unsigned i, msz, ii; |
| 16 | rijndael_ecbctx rij; |
| 17 | poly1305_key key; |
| 18 | poly1305_ctx mac; |
| 19 | octet |
| 20 | r[16] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, |
| 21 | n[16] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, |
| 22 | k[16] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, |
| 23 | s[16], t[16], |
| 24 | m[MSZMAX] = { 0 }; |
| 25 | #ifdef notdef |
| 26 | octet t0[16], t1[16]; |
| 27 | #endif |
| 28 | |
| 29 | rijndael_ecbinit(&rij, k, sizeof(k), 0); |
| 30 | poly1305_keyinit(&key, r, sizeof(r)); |
| 31 | for (ii = 0; ii < NITER; ii++) { |
| 32 | msz = 0; |
| 33 | for (;;) { |
| 34 | rijndael_ecbencrypt(&rij, n, s, 16); |
| 35 | |
| 36 | poly1305_macinit(&mac, &key, s); |
| 37 | poly1305_hash(&mac, m, msz); |
| 38 | poly1305_done(&mac, t); |
| 39 | for (i = 0; i < sizeof(t); i++) printf("%02x", t[i]); |
| 40 | putchar('\n'); |
| 41 | |
| 42 | #ifdef notdef |
| 43 | poly1305_macinit(&mac, &key, s); |
| 44 | poly1305_hash(&mac, m, msz); |
| 45 | poly1305_done(&mac, t0); |
| 46 | if (!ct_memeq(t, t0, sizeof(t))) { |
| 47 | fprintf(stderr, "verify failed\n"); |
| 48 | exit(112); |
| 49 | } |
| 50 | |
| 51 | t0[rand()%16] += 1 + rand()%255; |
| 52 | poly1305_macinit(&mac, &key, s); |
| 53 | poly1305_hash(&mac, m, msz); |
| 54 | poly1305_done(&mac, t1); |
| 55 | if (ct_memeq(t0, t1, sizeof(t))) { |
| 56 | fprintf(stderr, "verify accepted wrong tag\n"); |
| 57 | exit(112); |
| 58 | } |
| 59 | #endif |
| 60 | |
| 61 | if (msz >= MSZMAX) break; |
| 62 | n[0] ^= ii; |
| 63 | for (i = 0; i < 16; i++) n[i] ^= t[i]; |
| 64 | if (msz%2) { |
| 65 | for (i = 0; i < 16; i++) k[i] ^= t[i]; |
| 66 | rijndael_ecbinit(&rij, k, sizeof(k), 0); |
| 67 | } |
| 68 | if (msz%3) { |
| 69 | for (i = 0; i < 16; i++) r[i] ^= t[i]; |
| 70 | poly1305_keyinit(&key, r, sizeof(r)); |
| 71 | } |
| 72 | m[msz++] ^= t[0]; |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | return (0); |
| 77 | } |