Mercurial > dropbear
annotate libtomcrypt/src/pk/ecc/ecc_test.c @ 1857:6022df862942
Use DSCP for IP QoS traffic classes
The previous TOS values are deprecated and not used by modern traffic
classifiers. This sets AF21 for "interactive" traffic (with a tty).
Non-tty traffic sets AF11 - that indicates high throughput but is not
lowest priority (which would be CS1 or LE).
This differs from the CS1 used by OpenSSH, it lets interactive git over SSH
have higher priority than background least effort traffic. Dropbear's settings
here should be suitable with the diffservs used by CAKE qdisc.
author | Matt Johnston <matt@ucc.asn.au> |
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date | Tue, 25 Jan 2022 17:32:20 +0800 |
parents | 6dba84798cd5 |
children |
rev | line source |
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382
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis |
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2 * |
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3 * LibTomCrypt is a library that provides various cryptographic |
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4 * algorithms in a highly modular and flexible manner. |
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5 * |
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6 * The library is free for all purposes without any express |
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7 * guarantee it works. |
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8 */ |
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9 |
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10 /* Implements ECC over Z/pZ for curve y^2 = x^3 - 3x + b |
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11 * |
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12 * All curves taken from NIST recommendation paper of July 1999 |
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13 * Available at http://csrc.nist.gov/cryptval/dss.htm |
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14 */ |
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15 #include "tomcrypt.h" |
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16 |
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17 /** |
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18 @file ecc_test.c |
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19 ECC Crypto, Tom St Denis |
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Update to libtomcrypt 1.18.1, merged with Dropbear changes
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20 */ |
382
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21 |
1435
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22 #ifdef LTC_MECC |
382
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23 |
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24 /** |
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25 Perform on the ECC system |
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26 @return CRYPT_OK if successful |
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27 */ |
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28 int ecc_test(void) |
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29 { |
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30 void *modulus, *order; |
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31 ecc_point *G, *GG; |
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32 int i, err, primality; |
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33 |
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34 if ((err = mp_init_multi(&modulus, &order, NULL)) != CRYPT_OK) { |
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35 return err; |
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36 } |
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37 |
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38 G = ltc_ecc_new_point(); |
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39 GG = ltc_ecc_new_point(); |
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40 if (G == NULL || GG == NULL) { |
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41 mp_clear_multi(modulus, order, NULL); |
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42 ltc_ecc_del_point(G); |
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43 ltc_ecc_del_point(GG); |
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44 return CRYPT_MEM; |
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45 } |
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46 |
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47 for (i = 0; ltc_ecc_sets[i].size; i++) { |
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48 #if 0 |
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49 printf("Testing %d\n", ltc_ecc_sets[i].size); |
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50 #endif |
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51 if ((err = mp_read_radix(modulus, (char *)ltc_ecc_sets[i].prime, 16)) != CRYPT_OK) { goto done; } |
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52 if ((err = mp_read_radix(order, (char *)ltc_ecc_sets[i].order, 16)) != CRYPT_OK) { goto done; } |
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53 |
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54 /* is prime actually prime? */ |
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55 if ((err = mp_prime_is_prime(modulus, 8, &primality)) != CRYPT_OK) { goto done; } |
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56 if (primality == 0) { |
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57 err = CRYPT_FAIL_TESTVECTOR; |
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58 goto done; |
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59 } |
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60 |
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61 /* is order prime ? */ |
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62 if ((err = mp_prime_is_prime(order, 8, &primality)) != CRYPT_OK) { goto done; } |
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63 if (primality == 0) { |
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64 err = CRYPT_FAIL_TESTVECTOR; |
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65 goto done; |
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66 } |
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67 |
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68 if ((err = mp_read_radix(G->x, (char *)ltc_ecc_sets[i].Gx, 16)) != CRYPT_OK) { goto done; } |
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69 if ((err = mp_read_radix(G->y, (char *)ltc_ecc_sets[i].Gy, 16)) != CRYPT_OK) { goto done; } |
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70 mp_set(G->z, 1); |
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71 |
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72 /* then we should have G == (order + 1)G */ |
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73 if ((err = mp_add_d(order, 1, order)) != CRYPT_OK) { goto done; } |
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74 if ((err = ltc_mp.ecc_ptmul(order, G, GG, modulus, 1)) != CRYPT_OK) { goto done; } |
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75 if (mp_cmp(G->x, GG->x) != LTC_MP_EQ || mp_cmp(G->y, GG->y) != LTC_MP_EQ) { |
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76 err = CRYPT_FAIL_TESTVECTOR; |
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77 goto done; |
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78 } |
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79 } |
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80 err = CRYPT_OK; |
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81 done: |
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82 ltc_ecc_del_point(GG); |
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83 ltc_ecc_del_point(G); |
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84 mp_clear_multi(order, modulus, NULL); |
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85 return err; |
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86 } |
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87 |
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88 #endif |
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89 |
1471
6dba84798cd5
Update to libtomcrypt 1.18.1, merged with Dropbear changes
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90 /* ref: $Format:%D$ */ |
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Update to libtomcrypt 1.18.1, merged with Dropbear changes
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91 /* git commit: $Format:%H$ */ |
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Update to libtomcrypt 1.18.1, merged with Dropbear changes
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92 /* commit time: $Format:%ai$ */ |
382
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parents:
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93 |