Mercurial > dropbear
annotate libtomcrypt/src/pk/ecc/ecc_test.c @ 1902:4a6725ac957c
Revert "Don't include sk keys at all in KEX list"
This reverts git commit f972813ecdc7bb981d25b5a63638bd158f1c8e72.
The sk algorithms need to remain in the sigalgs list so that they
are included in the server-sig-algs ext-info message sent by
the server. RFC8308 for server-sig-algs requires that all algorithms are
listed (though OpenSSH client 8.4p1 tested doesn't require that)
author | Matt Johnston <matt@ucc.asn.au> |
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date | Thu, 24 Mar 2022 13:42:08 +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 |
1471
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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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update to libtomcrypt 1.17 (with Dropbear changes)
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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 |