Mercurial > dropbear

annotate libtommath/etc/2kprime.c @ 1156:a8f4dade70e5

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avoid getpass when not used some systems (like android's bionic) do not provide getpass. you can disable ENABLE_CLI_PASSWORD_AUTH & ENABLE_CLI_INTERACT_AUTH to avoid its use (and rely on pubkey auth), but the link still fails because the support file calls getpass. do not define this func if both of those auth methods are not used.
author Mike Frysinger <vapier@gentoo.org>
date Wed, 21 Oct 2015 22:39:55 +0800
parents 5ff8218bcee9
children 60fc6476e044
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
284
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1 /* Makes safe primes of a 2k nature */
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diff changeset
2 #include <tommath.h>
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3 #include <time.h>
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4
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5 int sizes[] = {256, 512, 768, 1024, 1536, 2048, 3072, 4096};
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6
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7 int main(void)
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8 {
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9 char buf[2000];
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diff changeset
10 int x, y;
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diff changeset
11 mp_int q, p;
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12 FILE *out;
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13 clock_t t1;
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Matt Johnston <matt@ucc.asn.au>
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14 mp_digit z;
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
Matt Johnston <matt@ucc.asn.au>
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15
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
Matt Johnston <matt@ucc.asn.au>
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16 mp_init_multi(&q, &p, NULL);
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17
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
Matt Johnston <matt@ucc.asn.au>
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18 out = fopen("2kprime.1", "w");
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Matt Johnston <matt@ucc.asn.au>
parents:
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19 for (x = 0; x < (int)(sizeof(sizes) / sizeof(sizes[0])); x++) {
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Matt Johnston <matt@ucc.asn.au>
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20 top:
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
21 mp_2expt(&q, sizes[x]);
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
Matt Johnston <matt@ucc.asn.au>
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22 mp_add_d(&q, 3, &q);
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Matt Johnston <matt@ucc.asn.au>
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23 z = -3;
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24
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
Matt Johnston <matt@ucc.asn.au>
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25 t1 = clock();
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26 for(;;) {
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Matt Johnston <matt@ucc.asn.au>
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27 mp_sub_d(&q, 4, &q);
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Matt Johnston <matt@ucc.asn.au>
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28 z += 4;
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29
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30 if (z > MP_MASK) {
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Matt Johnston <matt@ucc.asn.au>
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31 printf("No primes of size %d found\n", sizes[x]);
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32 break;
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33 }
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34
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35 if (clock() - t1 > CLOCKS_PER_SEC) {
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36 printf("."); fflush(stdout);
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37 // sleep((clock() - t1 + CLOCKS_PER_SEC/2)/CLOCKS_PER_SEC);
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38 t1 = clock();
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39 }
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
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40
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
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41 /* quick test on q */
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Matt Johnston <matt@ucc.asn.au>
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42 mp_prime_is_prime(&q, 1, &y);
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43 if (y == 0) {
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44 continue;
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45 }
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46
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
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47 /* find (q-1)/2 */
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48 mp_sub_d(&q, 1, &p);
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49 mp_div_2(&p, &p);
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50 mp_prime_is_prime(&p, 3, &y);
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51 if (y == 0) {
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52 continue;
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53 }
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54
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
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55 /* test on q */
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56 mp_prime_is_prime(&q, 3, &y);
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57 if (y == 0) {
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58 continue;
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59 }
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60
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
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61 break;
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62 }
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63
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
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64 if (y == 0) {
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
65 ++sizes[x];
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66 goto top;
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Matt Johnston <matt@ucc.asn.au>
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diff changeset
67 }
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
Matt Johnston <matt@ucc.asn.au>
parents:
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68
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
Matt Johnston <matt@ucc.asn.au>
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diff changeset
69 mp_toradix(&q, buf, 10);
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
70 printf("\n\n%d-bits (k = %lu) = %s\n", sizes[x], z, buf);
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
71 fprintf(out, "%d-bits (k = %lu) = %s\n", sizes[x], z, buf); fflush(out);
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
Matt Johnston <matt@ucc.asn.au>
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diff changeset
72 }
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
Matt Johnston <matt@ucc.asn.au>
parents:
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73
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
74 return 0;
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
Matt Johnston <matt@ucc.asn.au>
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75 }
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
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parents:
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76
eed26cff980b propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 6c790cad5a7fa866ad062cb3a0c279f7ba788583)
Matt Johnston <matt@ucc.asn.au>
parents:
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77
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Matt Johnston <matt@ucc.asn.au>
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78
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79
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80
389
5ff8218bcee9 propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 2af95f00ebd5bb7a28b3817db1218442c935388e)
Matt Johnston <matt@ucc.asn.au>
parents: 284
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81
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Matt Johnston <matt@ucc.asn.au>
parents: 284
diff changeset
82 /* $Source: /cvs/libtom/libtommath/etc/2kprime.c,v $ */
5ff8218bcee9 propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 2af95f00ebd5bb7a28b3817db1218442c935388e)
Matt Johnston <matt@ucc.asn.au>
parents: 284
diff changeset
83 /* $Revision: 1.2 $ */
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Matt Johnston <matt@ucc.asn.au>
parents: 284
diff changeset
84 /* $Date: 2005/05/05 14:38:47 $ */